TY  - JOUR
AU  - Ruml, Mirjana
AU  - Gregorić, Enika
AU  - Matović, Gordana
AU  - Radovanović, Slavica
AU  - Počuča, Vesna
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6030
AB  - This paper documents the change of temperature indices for the growing season (April–September) and dormancy (October–March) in Serbia based on observations from 26 meteorological stations. The mean, maximum, and minimum daily temperatures, as well as eight extreme temperature indices, were examined. A trend analysis revealed uneven changes in the growing season and dormant temperatures during the observation period divided into two parts (1961–1980 and 1981–2010) according to the results of the sequential Mann–Kendall test for detecting change points in time series. The dormant temperature changes were quite uniform during the entire examined period, while the growing season temperature displayed a complex pattern of change. In the sub-period 1961–1980, all examined temperature indices exhibited a cooling tendency during the growing season and a warming tendency during dormancy. A larger decreasing trend was detected in the growing season maximum temperature (a nationally averaged rate − 1.10 °C per decade) and related indices than in the growing season minimum temperature (a nationally averaged rate − 0.37 °C per decade) and related indices. In the same sub-period, the dormant maximum and minimum temperatures increased at the same rate of 0.49 °C per decade on average for all stations. During the sub-period 1981–2010, a warming tendency was detected both in the growing season and dormant temperature indices with similar magnitudes of the change (minimum and maximum temperatures increased on average from 0.48 to 0.56 °C per decade). Examination of the relationship between the temperature indices and large-scale circulation patterns revealed that only the East Atlantic pattern displayed significant association with trends of examined indices, but only during the growing season in the sub-period 1981–2010.
PB  - Springer
T2  - Theoretical and Applied Climatology
T1  - Uneven trends of temperature indices during the growing season and dormancy in Serbia
EP  - 1295
IS  - 3-4
SP  - 1277
VL  - 147
DO  - 10.1007/s00704-021-03859-8
ER  - 

@article{
author = "Ruml, Mirjana and Gregorić, Enika and Matović, Gordana and Radovanović, Slavica and Počuča, Vesna",
year = "2022",
abstract = "This paper documents the change of temperature indices for the growing season (April–September) and dormancy (October–March) in Serbia based on observations from 26 meteorological stations. The mean, maximum, and minimum daily temperatures, as well as eight extreme temperature indices, were examined. A trend analysis revealed uneven changes in the growing season and dormant temperatures during the observation period divided into two parts (1961–1980 and 1981–2010) according to the results of the sequential Mann–Kendall test for detecting change points in time series. The dormant temperature changes were quite uniform during the entire examined period, while the growing season temperature displayed a complex pattern of change. In the sub-period 1961–1980, all examined temperature indices exhibited a cooling tendency during the growing season and a warming tendency during dormancy. A larger decreasing trend was detected in the growing season maximum temperature (a nationally averaged rate − 1.10 °C per decade) and related indices than in the growing season minimum temperature (a nationally averaged rate − 0.37 °C per decade) and related indices. In the same sub-period, the dormant maximum and minimum temperatures increased at the same rate of 0.49 °C per decade on average for all stations. During the sub-period 1981–2010, a warming tendency was detected both in the growing season and dormant temperature indices with similar magnitudes of the change (minimum and maximum temperatures increased on average from 0.48 to 0.56 °C per decade). Examination of the relationship between the temperature indices and large-scale circulation patterns revealed that only the East Atlantic pattern displayed significant association with trends of examined indices, but only during the growing season in the sub-period 1981–2010.",
publisher = "Springer",
journal = "Theoretical and Applied Climatology",
title = "Uneven trends of temperature indices during the growing season and dormancy in Serbia",
pages = "1295-1277",
number = "3-4",
volume = "147",
doi = "10.1007/s00704-021-03859-8"
}

Ruml, M., Gregorić, E., Matović, G., Radovanović, S.,& Počuča, V.. (2022). Uneven trends of temperature indices during the growing season and dormancy in Serbia. in Theoretical and Applied Climatology
Springer., 147(3-4), 1277-1295.
https://doi.org/10.1007/s00704-021-03859-8

Ruml M, Gregorić E, Matović G, Radovanović S, Počuča V. Uneven trends of temperature indices during the growing season and dormancy in Serbia. in Theoretical and Applied Climatology. 2022;147(3-4):1277-1295.
doi:10.1007/s00704-021-03859-8 .

Ruml, Mirjana, Gregorić, Enika, Matović, Gordana, Radovanović, Slavica, Počuča, Vesna, "Uneven trends of temperature indices during the growing season and dormancy in Serbia" in Theoretical and Applied Climatology, 147, no. 3-4 (2022):1277-1295,
https://doi.org/10.1007/s00704-021-03859-8 . .

TY  - JOUR
AU  - Mohlala, Day Boitumelo
AU  - Stričević, Ružica
AU  - Gregorić, Enika
AU  - Životić, Ljubomir
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6679
AB  - Нормализована разлика вегетационог индекса (NDVI) је индикатор здравља вегетације, али и промене земљишног покривача на основу рефлексије одређених опсега у електромагнетном спектру. Начин коришћења земљишта, годишња доба и климатске промене утичу на просторне промене NDVI вредности. Ова студија се фокусира на сливове река Тиња и Козлица, које се налазе на источним деловима планине Маљен и који се карактеришу доминантним присутвом травнате вегетације. Просторне и временске промене у снабдевеност биљака водом су праћење коришћењем 10-метарских Сентинел-2 снимака, и даље обрађених у QGIS-у за 2020–2021. годину, по месецима. За лакше праћење промене NDVI вредности сливови ове две реке су разграничени на укупно 305 подсливова, на којима је вршена даља анализа. Сви просторни NDVI подаци у току обе године се крећу од < 0,1 – > 0,6. Резултати указују да постоје видљиве промене у вредностима NDVI током различитих годишњих доба, што је у складу са порастом и смањењем водног стреса током проучаваног временског периода, односно са променама климатских чиниоца током вегетације. У летњим месецима највеће вредности премашују вредност од 0,6, а у неким случајевима и 0,8. Вредности NDVI у октобру и новембру се смањују на 0,3 и 0,5, док су у зимским месецима NDVI вредности <0,1. Вредности NDVI су више, и мање променљиве, у подсливовима са заступљеном дрвенастом вегетацијом, међу којим има и четинара. Ова студија доприноси повећању знања о потенцијалној примени даљинске детекције, као и Сентинел-2 снимака високе резолуције за праћење стања снабдевености биљака водом. ГИС алати омогућавају
разграничење подсливова, што помаже бољем праћењу просторних варијација NDVI унутар
природно издвојених ентитета. Приликом процене утицаја суше на биљну производњу треба узети у обзир тренутни водни режим биљака. Због лакоће израчунавања NDVI и других индекса, и високе резолуције података, Сентинел-2 може играти важну улогу у будућим системима раног упозоравања на сушу, и утврђивања стања вегетационог покривача.
PB  - Srpsko društvo za proučavanje zemljišta
T2  - Zemljiste i biljka
T1  - Просторне и временске промене у снабдевеност биљака водом применом NDVI у сливовима Tиње и Kозлице
IS  - 2
VL  - 71
DO  - 10.5937/ZemBilj2202120B
ER  - 

@article{
author = "Mohlala, Day Boitumelo and Stričević, Ružica and Gregorić, Enika and Životić, Ljubomir",
year = "2022",
abstract = "Нормализована разлика вегетационог индекса (NDVI) је индикатор здравља вегетације, али и промене земљишног покривача на основу рефлексије одређених опсега у електромагнетном спектру. Начин коришћења земљишта, годишња доба и климатске промене утичу на просторне промене NDVI вредности. Ова студија се фокусира на сливове река Тиња и Козлица, које се налазе на источним деловима планине Маљен и који се карактеришу доминантним присутвом травнате вегетације. Просторне и временске промене у снабдевеност биљака водом су праћење коришћењем 10-метарских Сентинел-2 снимака, и даље обрађених у QGIS-у за 2020–2021. годину, по месецима. За лакше праћење промене NDVI вредности сливови ове две реке су разграничени на укупно 305 подсливова, на којима је вршена даља анализа. Сви просторни NDVI подаци у току обе године се крећу од < 0,1 – > 0,6. Резултати указују да постоје видљиве промене у вредностима NDVI током различитих годишњих доба, што је у складу са порастом и смањењем водног стреса током проучаваног временског периода, односно са променама климатских чиниоца током вегетације. У летњим месецима највеће вредности премашују вредност од 0,6, а у неким случајевима и 0,8. Вредности NDVI у октобру и новембру се смањују на 0,3 и 0,5, док су у зимским месецима NDVI вредности <0,1. Вредности NDVI су више, и мање променљиве, у подсливовима са заступљеном дрвенастом вегетацијом, међу којим има и четинара. Ова студија доприноси повећању знања о потенцијалној примени даљинске детекције, као и Сентинел-2 снимака високе резолуције за праћење стања снабдевености биљака водом. ГИС алати омогућавају
разграничење подсливова, што помаже бољем праћењу просторних варијација NDVI унутар
природно издвојених ентитета. Приликом процене утицаја суше на биљну производњу треба узети у обзир тренутни водни режим биљака. Због лакоће израчунавања NDVI и других индекса, и високе резолуције података, Сентинел-2 може играти важну улогу у будућим системима раног упозоравања на сушу, и утврђивања стања вегетационог покривача.",
publisher = "Srpsko društvo za proučavanje zemljišta",
journal = "Zemljiste i biljka",
title = "Просторне и временске промене у снабдевеност биљака водом применом NDVI у сливовима Tиње и Kозлице",
number = "2",
volume = "71",
doi = "10.5937/ZemBilj2202120B"
}

Mohlala, D. B., Stričević, R., Gregorić, E.,& Životić, L.. (2022). Просторне и временске промене у снабдевеност биљака водом применом NDVI у сливовима Tиње и Kозлице. in Zemljiste i biljka
Srpsko društvo za proučavanje zemljišta., 71(2).
https://doi.org/10.5937/ZemBilj2202120B

Mohlala DB, Stričević R, Gregorić E, Životić L. Просторне и временске промене у снабдевеност биљака водом применом NDVI у сливовима Tиње и Kозлице. in Zemljiste i biljka. 2022;71(2).
doi:10.5937/ZemBilj2202120B .

Mohlala, Day Boitumelo, Stričević, Ružica, Gregorić, Enika, Životić, Ljubomir, "Просторне и временске промене у снабдевеност биљака водом применом NDVI у сливовима Tиње и Kозлице" in Zemljiste i biljka, 71, no. 2 (2022),
https://doi.org/10.5937/ZemBilj2202120B . .

TY  - JOUR
AU  - Idrizović, Dzenita
AU  - Počuča, Vesna
AU  - Vujadinović-Mandić, Mirjam
AU  - Djurović, Nevenka
AU  - Matović, Gordana
AU  - Gregorić, Eniko
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5312
AB  - The catchment of the Toplica River, situated in an underdeveloped region of southern Serbia, is studied to examine the potential impact of climate change on the hydrologic regime of mountainous catchments. The study projects precipitation (P), air temperature (T), potential evapotranspiration (PET), and discharge (Q) in the entire catchment, as well as groundwater level (GWL) variation in the lowland part of the catchment, according to scenarios RCP4.5 and RCP8.5. Projections of P and T are based on the results of a multimodel ensemble of seven regional climate models from the EURO-CORDEX project. Runoff is simulated by a calibrated HBV-light model. The correlation between GWL and river discharge was modeled by soft computing techniques of artificial neural networks (ANN). The projections pertain to the period from 2021 to 2100. The Mann-Kendall trend test is used to check for a trend and its statistical significance, and the Mann-Whitney test to examine the statistical significance of a change in the mean ensemble median of time-series for the near future (2021-2050) and distant future (2071-2100), relative to the reference period (1971-2000). No notable changes are expected on an annual scale in the study area. However, the results show that the current non-uniformity of the monthly water distribution is growing. In the winter months at the end of the century, in RCP8.5, P and T are expected to increase, as is Q. Groundwater responds to increased river discharges by reduced depths to groundwater (increased GWL). A higher Q increases the flood risk in the winter months. In the warm season, RCP8.5 predicts a decrease in Q and increase in the depth to groundwater in the distant future. Reduced quantities of water in the warm period might have an adverse effect on drinking water supply, agriculture, hydropower, fisheries, ecology, and tourism in the study area.
PB  - Elsevier, Amsterdam
T2  - Journal of Hydrology
T1  - Impact of climate change on water resource availability in a mountainous catchment: A case study of the Toplica River catchment, Serbia
VL  - 587
DO  - 10.1016/j.jhydrol.2020.124992
ER  - 

@article{
author = "Idrizović, Dzenita and Počuča, Vesna and Vujadinović-Mandić, Mirjam and Djurović, Nevenka and Matović, Gordana and Gregorić, Eniko",
year = "2020",
abstract = "The catchment of the Toplica River, situated in an underdeveloped region of southern Serbia, is studied to examine the potential impact of climate change on the hydrologic regime of mountainous catchments. The study projects precipitation (P), air temperature (T), potential evapotranspiration (PET), and discharge (Q) in the entire catchment, as well as groundwater level (GWL) variation in the lowland part of the catchment, according to scenarios RCP4.5 and RCP8.5. Projections of P and T are based on the results of a multimodel ensemble of seven regional climate models from the EURO-CORDEX project. Runoff is simulated by a calibrated HBV-light model. The correlation between GWL and river discharge was modeled by soft computing techniques of artificial neural networks (ANN). The projections pertain to the period from 2021 to 2100. The Mann-Kendall trend test is used to check for a trend and its statistical significance, and the Mann-Whitney test to examine the statistical significance of a change in the mean ensemble median of time-series for the near future (2021-2050) and distant future (2071-2100), relative to the reference period (1971-2000). No notable changes are expected on an annual scale in the study area. However, the results show that the current non-uniformity of the monthly water distribution is growing. In the winter months at the end of the century, in RCP8.5, P and T are expected to increase, as is Q. Groundwater responds to increased river discharges by reduced depths to groundwater (increased GWL). A higher Q increases the flood risk in the winter months. In the warm season, RCP8.5 predicts a decrease in Q and increase in the depth to groundwater in the distant future. Reduced quantities of water in the warm period might have an adverse effect on drinking water supply, agriculture, hydropower, fisheries, ecology, and tourism in the study area.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hydrology",
title = "Impact of climate change on water resource availability in a mountainous catchment: A case study of the Toplica River catchment, Serbia",
volume = "587",
doi = "10.1016/j.jhydrol.2020.124992"
}

Idrizović, D., Počuča, V., Vujadinović-Mandić, M., Djurović, N., Matović, G.,& Gregorić, E.. (2020). Impact of climate change on water resource availability in a mountainous catchment: A case study of the Toplica River catchment, Serbia. in Journal of Hydrology
Elsevier, Amsterdam., 587.
https://doi.org/10.1016/j.jhydrol.2020.124992

Idrizović D, Počuča V, Vujadinović-Mandić M, Djurović N, Matović G, Gregorić E. Impact of climate change on water resource availability in a mountainous catchment: A case study of the Toplica River catchment, Serbia. in Journal of Hydrology. 2020;587.
doi:10.1016/j.jhydrol.2020.124992 .

Idrizović, Dzenita, Počuča, Vesna, Vujadinović-Mandić, Mirjam, Djurović, Nevenka, Matović, Gordana, Gregorić, Eniko, "Impact of climate change on water resource availability in a mountainous catchment: A case study of the Toplica River catchment, Serbia" in Journal of Hydrology, 587 (2020),
https://doi.org/10.1016/j.jhydrol.2020.124992 . .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Matović, Gordana
AU  - Počuča, Vesna
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5457
AB  - The role of hydrological models in water management is significant. One of their important applications is the development and management of water resources, including water quality and sediment transport. Semi-distributed hydrological models, such as HBV-light, provide the possibility of dividing the catchment into sub-catchments and zones according to height and type of land cover. GIS tools provide significant support to prepare input for these models. The paper presents the methodology for preparing input data, using the QGIS tool, for the HBV-light hydrological model, which is used for continuous hydrological simulations. This model transforms precipitation from the catchment into runoff. Three alternative methods are described and compared within the methodology, based on the example of the Veternica river catchment.
AB  - Uloga hidroloških modela u vodoprivredi je značajna. Jedna od njihovih važnih primena je u razvoju i upravljanju vodnim resursima, uključujući i kvalitet vode i pronos nanosa. Semi-distribuirani hidrološki modeli, kao što je HBV-light, pružaju mogućnost podele sliva reka na podslivove i na zone prema visinama i prema vrsti zemljišnog prekrivača. Da bi se pripremili ulazni podaci za ove modele GIS alati pružaju značajnu podršku. U radu je prikazana metodologija pripreme ulaznih podataka, korišćenjem alata QGIS, za HBV-light hidrološki model, koji služi za kontinualne hidrološke simulacije. Ovaj model transformiše padavine sa sliva u oticaj. U okviru metodologije, na primeru sliva reke Veternice, opisane su i upoređene tri alternativne metode.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd
T2  - Poljoprivredna tehnika
T1  - Application of GIS tools for preparation of input data for HBV-light hydrological model
T1  - Primena GIS alata za pripremu ulaznih podataka za HBV-light hidrološki model
EP  - 66
IS  - 2
SP  - 56
VL  - 45
DO  - 10.5937/PoljTeh2002056G
ER  - 

@article{
author = "Gregorić, Eniko and Matović, Gordana and Počuča, Vesna",
year = "2020",
abstract = "The role of hydrological models in water management is significant. One of their important applications is the development and management of water resources, including water quality and sediment transport. Semi-distributed hydrological models, such as HBV-light, provide the possibility of dividing the catchment into sub-catchments and zones according to height and type of land cover. GIS tools provide significant support to prepare input for these models. The paper presents the methodology for preparing input data, using the QGIS tool, for the HBV-light hydrological model, which is used for continuous hydrological simulations. This model transforms precipitation from the catchment into runoff. Three alternative methods are described and compared within the methodology, based on the example of the Veternica river catchment., Uloga hidroloških modela u vodoprivredi je značajna. Jedna od njihovih važnih primena je u razvoju i upravljanju vodnim resursima, uključujući i kvalitet vode i pronos nanosa. Semi-distribuirani hidrološki modeli, kao što je HBV-light, pružaju mogućnost podele sliva reka na podslivove i na zone prema visinama i prema vrsti zemljišnog prekrivača. Da bi se pripremili ulazni podaci za ove modele GIS alati pružaju značajnu podršku. U radu je prikazana metodologija pripreme ulaznih podataka, korišćenjem alata QGIS, za HBV-light hidrološki model, koji služi za kontinualne hidrološke simulacije. Ovaj model transformiše padavine sa sliva u oticaj. U okviru metodologije, na primeru sliva reke Veternice, opisane su i upoređene tri alternativne metode.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd",
journal = "Poljoprivredna tehnika",
title = "Application of GIS tools for preparation of input data for HBV-light hydrological model, Primena GIS alata za pripremu ulaznih podataka za HBV-light hidrološki model",
pages = "66-56",
number = "2",
volume = "45",
doi = "10.5937/PoljTeh2002056G"
}

Gregorić, E., Matović, G.,& Počuča, V.. (2020). Application of GIS tools for preparation of input data for HBV-light hydrological model. in Poljoprivredna tehnika
Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd., 45(2), 56-66.
https://doi.org/10.5937/PoljTeh2002056G

Gregorić E, Matović G, Počuča V. Application of GIS tools for preparation of input data for HBV-light hydrological model. in Poljoprivredna tehnika. 2020;45(2):56-66.
doi:10.5937/PoljTeh2002056G .

Gregorić, Eniko, Matović, Gordana, Počuča, Vesna, "Application of GIS tools for preparation of input data for HBV-light hydrological model" in Poljoprivredna tehnika, 45, no. 2 (2020):56-66,
https://doi.org/10.5937/PoljTeh2002056G . .

TY  - JOUR
AU  - Idrizović, Dzenita
AU  - Matović, Gordana
AU  - Gregorić, Eniko
AU  - Stričević, Ružica
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4832
AB  - In order to calculate water deficit of agricultural crops, it is necessary to have an insight into the evapotranspiration process. As for evaluation of reference evapotranspiration, the Penman-Monteith (FAO56-PM) method, suggested by The International Commission on Irrigation and Drainage (ICID) and Food and Agriculture Organization of the United Nations (FAO), requires several climate parameters, which are often unavailable. Thus, in this paper, the methods for computing ETo, which use limited weather data, were tested and then compared to FAO56-PM. The selected methods were those most often used as the replacement for FAO56-PM: Hargreaves, adjusted Hargreaves, Copais, Turc, Priestley-Taylor, Makkink and Hamon. ETo was calculated at the daily and average monthly levels, for the 2010 2013 period, using data from the following meteorological stations: Niš, Belgrade, Novi Sad, Loznica, Valjevo, Zlatibor, Ćuprija and Kikinda. Special importance was given to the vegetation period during the dry season due to the application of irrigation. The comparison of methods was based on statistical analysis, using parameters: MXE, MAE, RMSD, ARMSD, WRMSD, b and R2. The highest rate of matching FAO-PM at the average monthly level, as well as during the 2012 growing season, was shown by Copais, Turc and Priestley-Taylor methods, thus these methods may be recommended as the replacement for FAO-PM under climate conditions of Serbia. In case only temperature data are available, the results of this research justify the use of the adjusted Hargreaves equation to calculate ETo for the vegetation period.
AB  - Za izračunavanje potreba za vodom poljoprivrednih kultura neophodno je imati uvid u proces evapotranspiracije. Metoda Penman-Monteith (FAO56-PM), koja je od strane Međunarodne komisije za navodnjavanje i odvodnjavanje (engl. Internatioanl Commission on Irrigation and Drainage ICID) i Organizacije za hranu i poljoprivredu Ujedinjenih nacija (engl. Food and Agriculture Organisation FAO) predložena za proračun referentne evapotranspiracije (ETo), zahteva poznavanje više klimatskih parametara, koji često nisu dostupni. Zato su u ovom radu testirane metode za proračun ETo koje koriste manji broj podataka i upoređivane sa FAO56-PM. Izabrane su metode koje su najčešće korišćene kao zamena za FAO56-PM: Hargreaves, modifikovani Hargreaves, Copais, Turc, Priestley-Taylor, Makkink i Hamon. Proračun je rađen na dnevnom i prosečnom mesečnom nivou, za period 2010 2013. godine, na stanicama: Niš, Beograd, Novi Sad, Loznica, Valjevo, Zlatibor, Ćuprija i Kikinda. Poseban značaj dat je vegetacionom periodu tokom sušne godine, interesantnom sa aspekta primene navodnjavanja. Upoređivanje metoda rađeno je na osnovu statističke analize, pri čemu su korišćeni parametri: MXE, MAE, RMSD, ARMSD, WRMSD, b i R2. Najbolje slaganje sa metodom FAO-PM na prosečnom mesečnom nivou, kao i u letnjem periodu 2012. godine, pokazale su metode Copais, Turc i Priestley-Taylor, pa se one mogu preporučiti kao zamena za metodu FAO56-PM, u našim klimatskim uslovima. Ukoliko se raspolaže samo podacima o temperaturi vazduha, rezultati dobijeni u ovom istraživanju pokazuju opravdanost upotrebe modifikovane metode Hargreaves za proračun ETo u toku vegetacionog perioda.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Analysis of seven indirect methods for evaluation of reference evapotranspiration under climate conditions of Serbia
T1  - Analiza sedam indirektnih metoda za proračun referentne evapotranspiracije u klimatskim uslovima Srbije
EP  - 81
IS  - 1
SP  - 67
VL  - 63
DO  - 10.2298/JAS1801067I
ER  - 

@article{
author = "Idrizović, Dzenita and Matović, Gordana and Gregorić, Eniko and Stričević, Ružica",
year = "2018",
abstract = "In order to calculate water deficit of agricultural crops, it is necessary to have an insight into the evapotranspiration process. As for evaluation of reference evapotranspiration, the Penman-Monteith (FAO56-PM) method, suggested by The International Commission on Irrigation and Drainage (ICID) and Food and Agriculture Organization of the United Nations (FAO), requires several climate parameters, which are often unavailable. Thus, in this paper, the methods for computing ETo, which use limited weather data, were tested and then compared to FAO56-PM. The selected methods were those most often used as the replacement for FAO56-PM: Hargreaves, adjusted Hargreaves, Copais, Turc, Priestley-Taylor, Makkink and Hamon. ETo was calculated at the daily and average monthly levels, for the 2010 2013 period, using data from the following meteorological stations: Niš, Belgrade, Novi Sad, Loznica, Valjevo, Zlatibor, Ćuprija and Kikinda. Special importance was given to the vegetation period during the dry season due to the application of irrigation. The comparison of methods was based on statistical analysis, using parameters: MXE, MAE, RMSD, ARMSD, WRMSD, b and R2. The highest rate of matching FAO-PM at the average monthly level, as well as during the 2012 growing season, was shown by Copais, Turc and Priestley-Taylor methods, thus these methods may be recommended as the replacement for FAO-PM under climate conditions of Serbia. In case only temperature data are available, the results of this research justify the use of the adjusted Hargreaves equation to calculate ETo for the vegetation period., Za izračunavanje potreba za vodom poljoprivrednih kultura neophodno je imati uvid u proces evapotranspiracije. Metoda Penman-Monteith (FAO56-PM), koja je od strane Međunarodne komisije za navodnjavanje i odvodnjavanje (engl. Internatioanl Commission on Irrigation and Drainage ICID) i Organizacije za hranu i poljoprivredu Ujedinjenih nacija (engl. Food and Agriculture Organisation FAO) predložena za proračun referentne evapotranspiracije (ETo), zahteva poznavanje više klimatskih parametara, koji često nisu dostupni. Zato su u ovom radu testirane metode za proračun ETo koje koriste manji broj podataka i upoređivane sa FAO56-PM. Izabrane su metode koje su najčešće korišćene kao zamena za FAO56-PM: Hargreaves, modifikovani Hargreaves, Copais, Turc, Priestley-Taylor, Makkink i Hamon. Proračun je rađen na dnevnom i prosečnom mesečnom nivou, za period 2010 2013. godine, na stanicama: Niš, Beograd, Novi Sad, Loznica, Valjevo, Zlatibor, Ćuprija i Kikinda. Poseban značaj dat je vegetacionom periodu tokom sušne godine, interesantnom sa aspekta primene navodnjavanja. Upoređivanje metoda rađeno je na osnovu statističke analize, pri čemu su korišćeni parametri: MXE, MAE, RMSD, ARMSD, WRMSD, b i R2. Najbolje slaganje sa metodom FAO-PM na prosečnom mesečnom nivou, kao i u letnjem periodu 2012. godine, pokazale su metode Copais, Turc i Priestley-Taylor, pa se one mogu preporučiti kao zamena za metodu FAO56-PM, u našim klimatskim uslovima. Ukoliko se raspolaže samo podacima o temperaturi vazduha, rezultati dobijeni u ovom istraživanju pokazuju opravdanost upotrebe modifikovane metode Hargreaves za proračun ETo u toku vegetacionog perioda.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Analysis of seven indirect methods for evaluation of reference evapotranspiration under climate conditions of Serbia, Analiza sedam indirektnih metoda za proračun referentne evapotranspiracije u klimatskim uslovima Srbije",
pages = "81-67",
number = "1",
volume = "63",
doi = "10.2298/JAS1801067I"
}

Idrizović, D., Matović, G., Gregorić, E.,& Stričević, R.. (2018). Analysis of seven indirect methods for evaluation of reference evapotranspiration under climate conditions of Serbia. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 63(1), 67-81.
https://doi.org/10.2298/JAS1801067I

Idrizović D, Matović G, Gregorić E, Stričević R. Analysis of seven indirect methods for evaluation of reference evapotranspiration under climate conditions of Serbia. in Journal of Agricultural Sciences (Belgrade). 2018;63(1):67-81.
doi:10.2298/JAS1801067I .

Idrizović, Dzenita, Matović, Gordana, Gregorić, Eniko, Stričević, Ružica, "Analysis of seven indirect methods for evaluation of reference evapotranspiration under climate conditions of Serbia" in Journal of Agricultural Sciences (Belgrade), 63, no. 1 (2018):67-81,
https://doi.org/10.2298/JAS1801067I . .

TY  - JOUR
AU  - Ruml, Mirjana
AU  - Gregorić, Eniko
AU  - Vujadinović, Mirjam
AU  - Radovanović, Slavica
AU  - Matović, Gordana
AU  - Vuković, Ana
AU  - Pacuca, Vesna
AU  - Stojfcić, Djurdja
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4446
AB  - The analysis of spatiotemporal changes of temperature extremes in Serbia, based on 18 ETCCDI indices, was performed using daily minimum and maximum temperature observations from 26 meteorological stations over the period 1961-2010. The observation period was divided into two sub-periods (1961-1980 and 1981-2010) according to the results of the sequential Mann-Kendall test. Temporal trends were evaluated by a least-squares linear regression method. The average annual minimum temperature displayed a mixed pattern of increasing, decreasing, and no trends over 1961-1980 and a significant increasing trend over 1981-2010 across the whole country, with a regionally averaged rate of 0.48 degrees C per decade. The average annual maximum temperature showed a decreasing trend during 1961-1980 and a significant increasing trend at all stations during 1981-2010, with a regionally averaged rate of 0.56 degrees C per decade. Hot indices exhibited a general cooling tendency until 1980 and a warming tendency afterwards, with the most pronounced trends in the number of summer and tropical days during the first period and in the frequency of warm days and nights in the second. Cold indices displayed a mostly warming tendency over the entire period, with the most remarkable increase in the lowest annual maximum temperature and the number of ice days during the first period and in the frequency of cool nights during the second. At most stations, the diurnal temperature range showed a decrease until 1980 and no change or a slight increase afterwards. The lengthening of the growing season was much more pronounced in the later period. The computed correlation coefficient between the annual temperature indices and large-scale circulation features revealed that the East Atlantic pattern displayed much stronger association with examined indices than the North Atlantic Oscillation and East Atlantic/West Russia pattern.
PB  - Elsevier Science Inc, New York
T2  - Atmospheric Research
T1  - Observed changes of temperature extremes in Serbia over the period 1961-2010
EP  - 41
SP  - 26
VL  - 183
DO  - 10.1016/j.atmosres.2016.08.013
ER  - 

@article{
author = "Ruml, Mirjana and Gregorić, Eniko and Vujadinović, Mirjam and Radovanović, Slavica and Matović, Gordana and Vuković, Ana and Pacuca, Vesna and Stojfcić, Djurdja",
year = "2017",
abstract = "The analysis of spatiotemporal changes of temperature extremes in Serbia, based on 18 ETCCDI indices, was performed using daily minimum and maximum temperature observations from 26 meteorological stations over the period 1961-2010. The observation period was divided into two sub-periods (1961-1980 and 1981-2010) according to the results of the sequential Mann-Kendall test. Temporal trends were evaluated by a least-squares linear regression method. The average annual minimum temperature displayed a mixed pattern of increasing, decreasing, and no trends over 1961-1980 and a significant increasing trend over 1981-2010 across the whole country, with a regionally averaged rate of 0.48 degrees C per decade. The average annual maximum temperature showed a decreasing trend during 1961-1980 and a significant increasing trend at all stations during 1981-2010, with a regionally averaged rate of 0.56 degrees C per decade. Hot indices exhibited a general cooling tendency until 1980 and a warming tendency afterwards, with the most pronounced trends in the number of summer and tropical days during the first period and in the frequency of warm days and nights in the second. Cold indices displayed a mostly warming tendency over the entire period, with the most remarkable increase in the lowest annual maximum temperature and the number of ice days during the first period and in the frequency of cool nights during the second. At most stations, the diurnal temperature range showed a decrease until 1980 and no change or a slight increase afterwards. The lengthening of the growing season was much more pronounced in the later period. The computed correlation coefficient between the annual temperature indices and large-scale circulation features revealed that the East Atlantic pattern displayed much stronger association with examined indices than the North Atlantic Oscillation and East Atlantic/West Russia pattern.",
publisher = "Elsevier Science Inc, New York",
journal = "Atmospheric Research",
title = "Observed changes of temperature extremes in Serbia over the period 1961-2010",
pages = "41-26",
volume = "183",
doi = "10.1016/j.atmosres.2016.08.013"
}

Ruml, M., Gregorić, E., Vujadinović, M., Radovanović, S., Matović, G., Vuković, A., Pacuca, V.,& Stojfcić, D.. (2017). Observed changes of temperature extremes in Serbia over the period 1961-2010. in Atmospheric Research
Elsevier Science Inc, New York., 183, 26-41.
https://doi.org/10.1016/j.atmosres.2016.08.013

Ruml M, Gregorić E, Vujadinović M, Radovanović S, Matović G, Vuković A, Pacuca V, Stojfcić D. Observed changes of temperature extremes in Serbia over the period 1961-2010. in Atmospheric Research. 2017;183:26-41.
doi:10.1016/j.atmosres.2016.08.013 .

Ruml, Mirjana, Gregorić, Eniko, Vujadinović, Mirjam, Radovanović, Slavica, Matović, Gordana, Vuković, Ana, Pacuca, Vesna, Stojfcić, Djurdja, "Observed changes of temperature extremes in Serbia over the period 1961-2010" in Atmospheric Research, 183 (2017):26-41,
https://doi.org/10.1016/j.atmosres.2016.08.013 . .

TY  - JOUR
AU  - Matović, Gordana
AU  - Broćić, Zoran
AU  - Djuričin, Sonja
AU  - Gregorić, Eniko
AU  - Bodroža, Duško
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4086
AB  - The present research was conducted during the dry and warm growing seasons of 2011, 2012 and 2013 at Guca, which is a well-known potato-growing region of Serbia. Potato was grown under both rainfed conditions and with irrigation, applying two methods: sprinkler and subsurface drip irrigation. The objective of the research was to conduct a comparative analysis and assess the profitability of potato production under rainfed conditions and with irrigation by these two methods. The main outcome of the research showed that higher yields and more profitable production are achievable with irrigation, compared to rainfed conditions. Subsurface drip irrigation was found to be more profitable than sprinkler irrigation. The results provided insight into the structure and distribution of income and expenses, the income and expense growth trend, the percentage profit growth in the case of sprinkler and subsurface drip irrigation, as well as potential income losses at the national level if the irrigation methods considered are not used. A detailed analysis of the production costs provided insight into the feasibility of optimizing potato-growing approaches for all three types of production. The higher profitability of irrigated potato production opens the question of the need to increase irrigation coverage in Serbia.
PB  - Wiley, Hoboken
T2  - Irrigation and Drainage
T1  - Profitability assessment of potato production applying different irrigation methods
EP  - 513
IS  - 4
SP  - 502
VL  - 65
DO  - 10.1002/ird.1983
ER  - 

@article{
author = "Matović, Gordana and Broćić, Zoran and Djuričin, Sonja and Gregorić, Eniko and Bodroža, Duško",
year = "2016",
abstract = "The present research was conducted during the dry and warm growing seasons of 2011, 2012 and 2013 at Guca, which is a well-known potato-growing region of Serbia. Potato was grown under both rainfed conditions and with irrigation, applying two methods: sprinkler and subsurface drip irrigation. The objective of the research was to conduct a comparative analysis and assess the profitability of potato production under rainfed conditions and with irrigation by these two methods. The main outcome of the research showed that higher yields and more profitable production are achievable with irrigation, compared to rainfed conditions. Subsurface drip irrigation was found to be more profitable than sprinkler irrigation. The results provided insight into the structure and distribution of income and expenses, the income and expense growth trend, the percentage profit growth in the case of sprinkler and subsurface drip irrigation, as well as potential income losses at the national level if the irrigation methods considered are not used. A detailed analysis of the production costs provided insight into the feasibility of optimizing potato-growing approaches for all three types of production. The higher profitability of irrigated potato production opens the question of the need to increase irrigation coverage in Serbia.",
publisher = "Wiley, Hoboken",
journal = "Irrigation and Drainage",
title = "Profitability assessment of potato production applying different irrigation methods",
pages = "513-502",
number = "4",
volume = "65",
doi = "10.1002/ird.1983"
}

Matović, G., Broćić, Z., Djuričin, S., Gregorić, E.,& Bodroža, D.. (2016). Profitability assessment of potato production applying different irrigation methods. in Irrigation and Drainage
Wiley, Hoboken., 65(4), 502-513.
https://doi.org/10.1002/ird.1983

Matović G, Broćić Z, Djuričin S, Gregorić E, Bodroža D. Profitability assessment of potato production applying different irrigation methods. in Irrigation and Drainage. 2016;65(4):502-513.
doi:10.1002/ird.1983 .

Matović, Gordana, Broćić, Zoran, Djuričin, Sonja, Gregorić, Eniko, Bodroža, Duško, "Profitability assessment of potato production applying different irrigation methods" in Irrigation and Drainage, 65, no. 4 (2016):502-513,
https://doi.org/10.1002/ird.1983 . .

TY  - JOUR
AU  - Djurović, Nevenka
AU  - Domazet, Milka
AU  - Stričević, Ružica
AU  - Počuča, Vesna
AU  - Spalević, V.
AU  - Pivić, Radmila
AU  - Gregorić, Eniko
AU  - Domazet, Uroš
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3838
AB  - Water table forecasting plays an important role in the management of groundwater resources in agricultural regions where there are drainage systems in river valleys. The results presented in this paper pertain to an area along the left bank of the Danube River, in the Province of Vojvodina, which is the northern part of Serbia. Two soft computing techniques were used in this research: an adaptive neurofuzzy inference system (ANFIS) and an artificial neural network (ANN) model for one-month water table forecasts at several wells located at different distances from the river. The results suggest that both these techniques represent useful tools for modeling hydrological processes in agriculture, with similar computing and memory capabilities, such that they constitute an exceptionally good numerical framework for generating high-quality models.
PB  - Hindawi Publishing Corporation
T2  - Scientific World Journal
T1  - Comparison of Groundwater Level Models Based on Artificial Neural Networks and ANFIS
VL  - 2015
DO  - 10.1155/2015/742138
ER  - 

@article{
author = "Djurović, Nevenka and Domazet, Milka and Stričević, Ružica and Počuča, Vesna and Spalević, V. and Pivić, Radmila and Gregorić, Eniko and Domazet, Uroš",
year = "2015",
abstract = "Water table forecasting plays an important role in the management of groundwater resources in agricultural regions where there are drainage systems in river valleys. The results presented in this paper pertain to an area along the left bank of the Danube River, in the Province of Vojvodina, which is the northern part of Serbia. Two soft computing techniques were used in this research: an adaptive neurofuzzy inference system (ANFIS) and an artificial neural network (ANN) model for one-month water table forecasts at several wells located at different distances from the river. The results suggest that both these techniques represent useful tools for modeling hydrological processes in agriculture, with similar computing and memory capabilities, such that they constitute an exceptionally good numerical framework for generating high-quality models.",
publisher = "Hindawi Publishing Corporation",
journal = "Scientific World Journal",
title = "Comparison of Groundwater Level Models Based on Artificial Neural Networks and ANFIS",
volume = "2015",
doi = "10.1155/2015/742138"
}

Djurović, N., Domazet, M., Stričević, R., Počuča, V., Spalević, V., Pivić, R., Gregorić, E.,& Domazet, U.. (2015). Comparison of Groundwater Level Models Based on Artificial Neural Networks and ANFIS. in Scientific World Journal
Hindawi Publishing Corporation., 2015.
https://doi.org/10.1155/2015/742138

Djurović N, Domazet M, Stričević R, Počuča V, Spalević V, Pivić R, Gregorić E, Domazet U. Comparison of Groundwater Level Models Based on Artificial Neural Networks and ANFIS. in Scientific World Journal. 2015;2015.
doi:10.1155/2015/742138 .

Djurović, Nevenka, Domazet, Milka, Stričević, Ružica, Počuča, Vesna, Spalević, V., Pivić, Radmila, Gregorić, Eniko, Domazet, Uroš, "Comparison of Groundwater Level Models Based on Artificial Neural Networks and ANFIS" in Scientific World Journal, 2015 (2015),
https://doi.org/10.1155/2015/742138 . .

TY  - JOUR
AU  - Petković, Sava
AU  - Gregorić, Eniko
AU  - Žarković, Branka
AU  - Gržetić, Ivan
AU  - Radovanović, Vesna
AU  - Matović, Gordana
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3950
AB  - Chemical properties of water (pH, electrical conductivity and carbonate, bicarbonate, chloride, calcium, magnesium and sodium concentrations) of the water in the drainage canals of Galovica and Petrac, southeastern Srem, were tested in the period from 2008 to 2010. The objective was to determine the interaction between water quality and hydrological and anthropogenic drivers that characterize these two drainage areas, as well as to find out whether the water complies with quality requirements for irrigation. The results show that hydrological and anthropogenic factors do affect the quality of water in the drainage canals. It is poorer than that of the Sava River, which is the recipient of the drained waters. The concentrations of salts in the canal water, if used for crop irrigation, pose a low-to-moderate risk. Elevated bicarbonate concentrations restrict the application of drip or sprinkler irrigation systems. Irrigation of large surfaces in the drainage areas of Galovica and Petrac would require the Galovica and Petrac pumping stations to be reversible, so that, when needed, they can pump water from the Sava into the system of drainage canals.
PB  - Serbian Water Pollution Control Society, Belgrade
T2  - Water research and management
T1  - The effect of hydrological and anthropogenic factors on the chemical properties of water in the canal network of southeastern Srem
EP  - 42
IS  - 2
SP  - 33
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3950
ER  - 

@article{
author = "Petković, Sava and Gregorić, Eniko and Žarković, Branka and Gržetić, Ivan and Radovanović, Vesna and Matović, Gordana",
year = "2015",
abstract = "Chemical properties of water (pH, electrical conductivity and carbonate, bicarbonate, chloride, calcium, magnesium and sodium concentrations) of the water in the drainage canals of Galovica and Petrac, southeastern Srem, were tested in the period from 2008 to 2010. The objective was to determine the interaction between water quality and hydrological and anthropogenic drivers that characterize these two drainage areas, as well as to find out whether the water complies with quality requirements for irrigation. The results show that hydrological and anthropogenic factors do affect the quality of water in the drainage canals. It is poorer than that of the Sava River, which is the recipient of the drained waters. The concentrations of salts in the canal water, if used for crop irrigation, pose a low-to-moderate risk. Elevated bicarbonate concentrations restrict the application of drip or sprinkler irrigation systems. Irrigation of large surfaces in the drainage areas of Galovica and Petrac would require the Galovica and Petrac pumping stations to be reversible, so that, when needed, they can pump water from the Sava into the system of drainage canals.",
publisher = "Serbian Water Pollution Control Society, Belgrade",
journal = "Water research and management",
title = "The effect of hydrological and anthropogenic factors on the chemical properties of water in the canal network of southeastern Srem",
pages = "42-33",
number = "2",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3950"
}

Petković, S., Gregorić, E., Žarković, B., Gržetić, I., Radovanović, V.,& Matović, G.. (2015). The effect of hydrological and anthropogenic factors on the chemical properties of water in the canal network of southeastern Srem. in Water research and management
Serbian Water Pollution Control Society, Belgrade., 5(2), 33-42.
https://hdl.handle.net/21.15107/rcub_agrospace_3950

Petković S, Gregorić E, Žarković B, Gržetić I, Radovanović V, Matović G. The effect of hydrological and anthropogenic factors on the chemical properties of water in the canal network of southeastern Srem. in Water research and management. 2015;5(2):33-42.
https://hdl.handle.net/21.15107/rcub_agrospace_3950 .

Petković, Sava, Gregorić, Eniko, Žarković, Branka, Gržetić, Ivan, Radovanović, Vesna, Matović, Gordana, "The effect of hydrological and anthropogenic factors on the chemical properties of water in the canal network of southeastern Srem" in Water research and management, 5, no. 2 (2015):33-42,
https://hdl.handle.net/21.15107/rcub_agrospace_3950 .

TY  - JOUR
AU  - Kresović, Branka
AU  - Matović, Gordana
AU  - Gregorić, Eniko
AU  - Djuričin, Sonja
AU  - Bodroža, Duško
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3524
AB  - Maize is the most important agricultural product in Serbia, providing the largest revenue stream. Maize production in Serbia is largely rainfed and dependent on weather conditions. In the past four decades, the area of Zemun (Vojvodina Province) registered an upward air temperature trend, a decrease in summer rainfall, and a downward maize grain yield trend. Since Serbia is faced with climate change and increasing drought, the aim of the paper is to examine the agronomic and economic impacts of shifting maize production from rainfed to irrigated. An experimental study was carried out in the most important agricultural region of Serbia (Vojvodina), where maize was grown in both rainfed and irrigated conditions (2002-2010). Maize grain yields and climate parameters were recorded. The results showed that each year during the growing season, the crops were exposed to some degree of water deficit. The average water deficit in June, July and August was 48 mm, 98 mm and 88 mm, respectively. During that period maize underwent phenological stages in which its sensitivity to drought was high. Rainfed maize grain yields varied considerably from year to year, ranging from 8.57 t ha(-1) to 12.73 t ha(-1) (average 10.46 t ha(-1)). Irrigation increased yields by 4.8-48% (average 18.7%). This increase depended on weather conditions; the highest increase was noted in a dry and very warm season. The economic assessment confirmed higher profitability of irrigated maize (841.79(sic)/ha vs. rainfed 699.35(sic)/ha). Irrigation increased overall costs by 10.75% and profits by 21.4% (142.44(sic)/ha), compared to rainfed conditions. The estimated average annual loss incurred in Serbia due to a lack of irrigation in maize production is 122,161,287(sic). Considering the results of this research, as well as predictions of increasing drought in South East Europe, irrigation appears to be essential for successful maize production in Serbia and the entire region.
PB  - Elsevier, Amsterdam
T2  - Agricultural Water Management
T1  - Irrigation as a climate change impact mitigation measure: An agronomic and economic assessment of maize production in Serbia
EP  - 16
SP  - 7
VL  - 139
DO  - 10.1016/j.agwat.2014.03.006
ER  - 

@article{
author = "Kresović, Branka and Matović, Gordana and Gregorić, Eniko and Djuričin, Sonja and Bodroža, Duško",
year = "2014",
abstract = "Maize is the most important agricultural product in Serbia, providing the largest revenue stream. Maize production in Serbia is largely rainfed and dependent on weather conditions. In the past four decades, the area of Zemun (Vojvodina Province) registered an upward air temperature trend, a decrease in summer rainfall, and a downward maize grain yield trend. Since Serbia is faced with climate change and increasing drought, the aim of the paper is to examine the agronomic and economic impacts of shifting maize production from rainfed to irrigated. An experimental study was carried out in the most important agricultural region of Serbia (Vojvodina), where maize was grown in both rainfed and irrigated conditions (2002-2010). Maize grain yields and climate parameters were recorded. The results showed that each year during the growing season, the crops were exposed to some degree of water deficit. The average water deficit in June, July and August was 48 mm, 98 mm and 88 mm, respectively. During that period maize underwent phenological stages in which its sensitivity to drought was high. Rainfed maize grain yields varied considerably from year to year, ranging from 8.57 t ha(-1) to 12.73 t ha(-1) (average 10.46 t ha(-1)). Irrigation increased yields by 4.8-48% (average 18.7%). This increase depended on weather conditions; the highest increase was noted in a dry and very warm season. The economic assessment confirmed higher profitability of irrigated maize (841.79(sic)/ha vs. rainfed 699.35(sic)/ha). Irrigation increased overall costs by 10.75% and profits by 21.4% (142.44(sic)/ha), compared to rainfed conditions. The estimated average annual loss incurred in Serbia due to a lack of irrigation in maize production is 122,161,287(sic). Considering the results of this research, as well as predictions of increasing drought in South East Europe, irrigation appears to be essential for successful maize production in Serbia and the entire region.",
publisher = "Elsevier, Amsterdam",
journal = "Agricultural Water Management",
title = "Irrigation as a climate change impact mitigation measure: An agronomic and economic assessment of maize production in Serbia",
pages = "16-7",
volume = "139",
doi = "10.1016/j.agwat.2014.03.006"
}

Kresović, B., Matović, G., Gregorić, E., Djuričin, S.,& Bodroža, D.. (2014). Irrigation as a climate change impact mitigation measure: An agronomic and economic assessment of maize production in Serbia. in Agricultural Water Management
Elsevier, Amsterdam., 139, 7-16.
https://doi.org/10.1016/j.agwat.2014.03.006

Kresović B, Matović G, Gregorić E, Djuričin S, Bodroža D. Irrigation as a climate change impact mitigation measure: An agronomic and economic assessment of maize production in Serbia. in Agricultural Water Management. 2014;139:7-16.
doi:10.1016/j.agwat.2014.03.006 .

Kresović, Branka, Matović, Gordana, Gregorić, Eniko, Djuričin, Sonja, Bodroža, Duško, "Irrigation as a climate change impact mitigation measure: An agronomic and economic assessment of maize production in Serbia" in Agricultural Water Management, 139 (2014):7-16,
https://doi.org/10.1016/j.agwat.2014.03.006 . .

TY  - JOUR
AU  - Počuča, Vesna
AU  - Matović, Gordana
AU  - Djurović, Nevenka
AU  - Gregorić, Eniko
AU  - Živković, Miloš
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2543
AB  - Applications of models that simulate the processes in crop production are very frequent in agricultural research. Possibility of application of EPIC model for soil moisture simulation is considered in this paper. Results of measurements of soil moisture in chernozem type of soil under sugar beet in the conditions of irrigated and rainfall regime within period 1987-1990 were used for the analysis of possibility of application of EPIC model in simulation of soil water content. Application of EPIC model for soil moisture simulation in both irrigated and unirrigated conditions are rather limited for application without calibration on irrigated soils. The model shows better result in soil with lower water content. Apart from model calibration for soil water content modelling it is necessary to use instruments for continual monitoring since longer and more reliable time series will help calibration and validation of the model for such purposes.
AB  - Primena modela koji simuliraju procese u biljnoj proizvodnji je sve više zastupljena u istraživanjima u poljoprivredi. U ovom radu razmatrana je mogućnost primene EPIC modela (hidroloskog podmodela) za simulaciju vlažnosti zemljišta. Za analizu su korišćeni rezultati merenja vlage u zemljištu u četvorogodišnjem periodu na zemljištu tipa černozem pod šećernom repom u uslovima navodnjavanja i u prirodnom režimu padavina. Rezultati primene EPIC modela za simuliranje vlažnosti zemljišta pokazuju ograničenja za primenu bez kalibracije na navodnjavanim zemljištima. Na osnovu statističkih pokazatelja može se zaključiti da se simulacija vlažnosti zemljišta EPIC modelom u ovakvim uslovima vlažnosti zemljišta ne može pouzdano izvesti bez kalibracije modela. Ova ograničenja manje su izražena na varijanti bez navodnjavanja. U uslovima manjeg sadržaja vode u zemljištu, model pokazuje bolje rezultate.
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Possibilities of application of epic model for simulation of soil moisture in irrigation conditions
T1  - Mogućnosti primene epic modela za simulaciju vlažnosti zemljišta u uslovima navodnjavanja
EP  - 41
IS  - 1
SP  - 31
VL  - 60
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2543
ER  - 

@article{
author = "Počuča, Vesna and Matović, Gordana and Djurović, Nevenka and Gregorić, Eniko and Živković, Miloš",
year = "2011",
abstract = "Applications of models that simulate the processes in crop production are very frequent in agricultural research. Possibility of application of EPIC model for soil moisture simulation is considered in this paper. Results of measurements of soil moisture in chernozem type of soil under sugar beet in the conditions of irrigated and rainfall regime within period 1987-1990 were used for the analysis of possibility of application of EPIC model in simulation of soil water content. Application of EPIC model for soil moisture simulation in both irrigated and unirrigated conditions are rather limited for application without calibration on irrigated soils. The model shows better result in soil with lower water content. Apart from model calibration for soil water content modelling it is necessary to use instruments for continual monitoring since longer and more reliable time series will help calibration and validation of the model for such purposes., Primena modela koji simuliraju procese u biljnoj proizvodnji je sve više zastupljena u istraživanjima u poljoprivredi. U ovom radu razmatrana je mogućnost primene EPIC modela (hidroloskog podmodela) za simulaciju vlažnosti zemljišta. Za analizu su korišćeni rezultati merenja vlage u zemljištu u četvorogodišnjem periodu na zemljištu tipa černozem pod šećernom repom u uslovima navodnjavanja i u prirodnom režimu padavina. Rezultati primene EPIC modela za simuliranje vlažnosti zemljišta pokazuju ograničenja za primenu bez kalibracije na navodnjavanim zemljištima. Na osnovu statističkih pokazatelja može se zaključiti da se simulacija vlažnosti zemljišta EPIC modelom u ovakvim uslovima vlažnosti zemljišta ne može pouzdano izvesti bez kalibracije modela. Ova ograničenja manje su izražena na varijanti bez navodnjavanja. U uslovima manjeg sadržaja vode u zemljištu, model pokazuje bolje rezultate.",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Possibilities of application of epic model for simulation of soil moisture in irrigation conditions, Mogućnosti primene epic modela za simulaciju vlažnosti zemljišta u uslovima navodnjavanja",
pages = "41-31",
number = "1",
volume = "60",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2543"
}

Počuča, V., Matović, G., Djurović, N., Gregorić, E.,& Živković, M.. (2011). Possibilities of application of epic model for simulation of soil moisture in irrigation conditions. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 60(1), 31-41.
https://hdl.handle.net/21.15107/rcub_agrospace_2543

Počuča V, Matović G, Djurović N, Gregorić E, Živković M. Possibilities of application of epic model for simulation of soil moisture in irrigation conditions. in Zemljište i biljka. 2011;60(1):31-41.
https://hdl.handle.net/21.15107/rcub_agrospace_2543 .

Počuča, Vesna, Matović, Gordana, Djurović, Nevenka, Gregorić, Eniko, Živković, Miloš, "Possibilities of application of epic model for simulation of soil moisture in irrigation conditions" in Zemljište i biljka, 60, no. 1 (2011):31-41,
https://hdl.handle.net/21.15107/rcub_agrospace_2543 .

TY  - JOUR
AU  - Petković, Sava
AU  - Gregorić, Eniko
AU  - Slepcević, Vesna
AU  - Blagojević, Srdjan
AU  - Gajić, Boško
AU  - Kljujev, Igor
AU  - Žarković, Branka
AU  - Djurović, Nevenka
AU  - Drasković, Radovan
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2727
AB  - In suburban Belgrade, there are some 200 local water supply systems which are not connected to either the Belgrade Water Supply System or to supply systems operated by municipal utilities. The small systems in Belgrade suburbs are either operated by local municipality (local government) or even by the group of local citizens who have neither technical capability nor financial resources to do it properly. Roughly 200,000 of Belgrade's inhabitants obtain their drinking water from these water supply systems. The water quality delivered by these local water supply systems is often compromised in terms of microbiological, physical and/or chemical compliance with drinking water standards in addition to the general lack of strategy on water safety plans and risk assessment. WHO Guidelines on water quality standards as well as the recommendations on safety plans and whole risk assessment are strictly respected in the main (central) Water Supply System in Belgrade. Most frequently, elevated concentrations of ammonia, nitrites, nitrates and iron lead to lack of chemical compliance, while elevated counts of aerobic mesophilic bacteria and the presence of bacteria indicative of faecal pollution tend to be behind microbiological lack of compliance with drinking water standards. In most cases, failure to meet drinking water standards can be attributed to groundwater pollution. No sewer system exists in these areas, and wastewater from septic tanks, in practice infiltration wells, is in direct contact with groundwater. Of a total of 72 laboratory-tested drinking water samples, 51.3% failed to meet physical and/or chemical standards, and 73.6% failed to meet microbiological standards. Groundwater pollution can only be prevented if wastewater disposal system is provided for all households and all suburban residential areas which obtain their water supply from local water supply systems. Some possible mitigation measures have been indicated. In the interim period, water must be disinfected continually, and the feasibility of ozonation or UV irradiation, in addition to chlorination, should be assessed.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Urban Water Journal
T1  - Contamination of local water supply systems in suburban Belgrade
EP  - 92
IS  - 2
SP  - 79
VL  - 8
DO  - 10.1080/1573062X.2010.546862
ER  - 

@article{
author = "Petković, Sava and Gregorić, Eniko and Slepcević, Vesna and Blagojević, Srdjan and Gajić, Boško and Kljujev, Igor and Žarković, Branka and Djurović, Nevenka and Drasković, Radovan",
year = "2011",
abstract = "In suburban Belgrade, there are some 200 local water supply systems which are not connected to either the Belgrade Water Supply System or to supply systems operated by municipal utilities. The small systems in Belgrade suburbs are either operated by local municipality (local government) or even by the group of local citizens who have neither technical capability nor financial resources to do it properly. Roughly 200,000 of Belgrade's inhabitants obtain their drinking water from these water supply systems. The water quality delivered by these local water supply systems is often compromised in terms of microbiological, physical and/or chemical compliance with drinking water standards in addition to the general lack of strategy on water safety plans and risk assessment. WHO Guidelines on water quality standards as well as the recommendations on safety plans and whole risk assessment are strictly respected in the main (central) Water Supply System in Belgrade. Most frequently, elevated concentrations of ammonia, nitrites, nitrates and iron lead to lack of chemical compliance, while elevated counts of aerobic mesophilic bacteria and the presence of bacteria indicative of faecal pollution tend to be behind microbiological lack of compliance with drinking water standards. In most cases, failure to meet drinking water standards can be attributed to groundwater pollution. No sewer system exists in these areas, and wastewater from septic tanks, in practice infiltration wells, is in direct contact with groundwater. Of a total of 72 laboratory-tested drinking water samples, 51.3% failed to meet physical and/or chemical standards, and 73.6% failed to meet microbiological standards. Groundwater pollution can only be prevented if wastewater disposal system is provided for all households and all suburban residential areas which obtain their water supply from local water supply systems. Some possible mitigation measures have been indicated. In the interim period, water must be disinfected continually, and the feasibility of ozonation or UV irradiation, in addition to chlorination, should be assessed.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Urban Water Journal",
title = "Contamination of local water supply systems in suburban Belgrade",
pages = "92-79",
number = "2",
volume = "8",
doi = "10.1080/1573062X.2010.546862"
}

Petković, S., Gregorić, E., Slepcević, V., Blagojević, S., Gajić, B., Kljujev, I., Žarković, B., Djurović, N.,& Drasković, R.. (2011). Contamination of local water supply systems in suburban Belgrade. in Urban Water Journal
Taylor & Francis Ltd, Abingdon., 8(2), 79-92.
https://doi.org/10.1080/1573062X.2010.546862

Petković S, Gregorić E, Slepcević V, Blagojević S, Gajić B, Kljujev I, Žarković B, Djurović N, Drasković R. Contamination of local water supply systems in suburban Belgrade. in Urban Water Journal. 2011;8(2):79-92.
doi:10.1080/1573062X.2010.546862 .

Petković, Sava, Gregorić, Eniko, Slepcević, Vesna, Blagojević, Srdjan, Gajić, Boško, Kljujev, Igor, Žarković, Branka, Djurović, Nevenka, Drasković, Radovan, "Contamination of local water supply systems in suburban Belgrade" in Urban Water Journal, 8, no. 2 (2011):79-92,
https://doi.org/10.1080/1573062X.2010.546862 . .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Djurović, Nevenka
AU  - Rudić, Dragan
AU  - Počuča, Vesna
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1891
AB  - The region of Southeast Srem is rich in ground waters, which is of great significance to agricultural production. The objective of this paper was to designate the zones of different groundwater types from the aspect of recharge, based on the analysis of groundwater regimes in the study area. A very complex groundwater regime in Southeast Srem, which depends on a great number of natural and some anthropogenic factors, makes it difficult to designate clearly the zones of the three main types of groundwater regime. Still, the boundaries of the zones of groundwater regime types were defined based on the results of correlation analysis of the basic factors affecting the groundwater regime. Zone I includes the climatic type of groundwater. Its fluctuation corresponds to the vertical factors of water balance (precipitation and evaporation) and it is not affected by the river water level. This zone extends North and East of the line Putinci, Golubinci, Stara Pazova, Batajnica, Dobanovci, mainly in the area of the loess plateau. Within the zone, groundwater is at a relatively great depth. Only exceptionally, in the valleys, it appears almost on the surface. Zone II includes the climatic-hydrological groundwater type, which is the transition between the climatic type and the hydrological type. The fluctuation of groundwater regime is affected both by the effect of vertical balance factors, and by the effect of watercourses. Climatic-hydrological groundwater type covers the central and the lowest part of the study area and the South part of the middle terrace. Zone III is classified as the hydrological groundwater type and it covers the riparian areas along the Sava and the Danube. The aquifer is hydraulically connected with the river Sava.
AB  - Područje jugoistočnog Srema obiluje podzemnim vodama koje imaju veliki značaj za poljoprivrednu proizvodnju. Cilj ovog rada bio je da se analizom režima podzemnih voda posmatranog područja izdvoje rejoni sa različitim tipovima podzemnih voda sa stanovišta njihovog prihranjivanja. Veoma složen režim podzemnih voda na području jugoistočnog Srema, koji zavisi od velikog broja prirodnih i nekih antropogenih faktora, otežava jasnu rejonizaciju područja jugoistočnog Srema u odnosu na tri osnovna tipa režima podzemnih voda. Ipak, na osnovu rezultata korelacione analize osnovnih faktora koji utiču na režim podzemnih voda, definisane su granice rejona pojedinih tipova režima podzemnih voda. Rejon I obuhvata klimatski tip podzeme vode, čije oscilacije odgovaraju vertikalnim faktorima vodnog bilansa (padavinama i isparavanju) i nisu pod uticajem vodostaja reka. Područje se povlači severno i istočno od linije Putinci, Golubinci, Stara Pazova, Batajnica i Dobanovci, uglavnom na području lesnog platoa. Unutar ovog rejona podzemne vode su na relativno velikoj dubini, a samo su izuzetno u dolinama skoro na površini terena. Rejon II zahvata klimatsko hidrološki tip podzemne vode, koji je prelaz između klimatskog i hidrološkog tipa, kod koga se uočavaju i uticaj faktora vertikalnog bilansa, kao i uticaj vodenih tokova na režim oscilacija podzemne vode. Klimatsko hidrološki tip podzemne vode zahvata centralni najniži deo analiziranog područja i južni deo srednje terase. Rejon III su priobalne površine uz Savu i Dunav na kojima je zastupljen hidrološki tip podzemnih voda, na kojima je izdan u hidrauličkoj vezi sa rekom Savom.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Groundwater types in Southeast Srem
T1  - Tipovi podzemnih voda jugoistočnog Srema
EP  - 29
IS  - 1
SP  - 19
VL  - 54
DO  - 10.2298/JAS0901019G
ER  - 

@article{
author = "Gregorić, Eniko and Djurović, Nevenka and Rudić, Dragan and Počuča, Vesna",
year = "2009",
abstract = "The region of Southeast Srem is rich in ground waters, which is of great significance to agricultural production. The objective of this paper was to designate the zones of different groundwater types from the aspect of recharge, based on the analysis of groundwater regimes in the study area. A very complex groundwater regime in Southeast Srem, which depends on a great number of natural and some anthropogenic factors, makes it difficult to designate clearly the zones of the three main types of groundwater regime. Still, the boundaries of the zones of groundwater regime types were defined based on the results of correlation analysis of the basic factors affecting the groundwater regime. Zone I includes the climatic type of groundwater. Its fluctuation corresponds to the vertical factors of water balance (precipitation and evaporation) and it is not affected by the river water level. This zone extends North and East of the line Putinci, Golubinci, Stara Pazova, Batajnica, Dobanovci, mainly in the area of the loess plateau. Within the zone, groundwater is at a relatively great depth. Only exceptionally, in the valleys, it appears almost on the surface. Zone II includes the climatic-hydrological groundwater type, which is the transition between the climatic type and the hydrological type. The fluctuation of groundwater regime is affected both by the effect of vertical balance factors, and by the effect of watercourses. Climatic-hydrological groundwater type covers the central and the lowest part of the study area and the South part of the middle terrace. Zone III is classified as the hydrological groundwater type and it covers the riparian areas along the Sava and the Danube. The aquifer is hydraulically connected with the river Sava., Područje jugoistočnog Srema obiluje podzemnim vodama koje imaju veliki značaj za poljoprivrednu proizvodnju. Cilj ovog rada bio je da se analizom režima podzemnih voda posmatranog područja izdvoje rejoni sa različitim tipovima podzemnih voda sa stanovišta njihovog prihranjivanja. Veoma složen režim podzemnih voda na području jugoistočnog Srema, koji zavisi od velikog broja prirodnih i nekih antropogenih faktora, otežava jasnu rejonizaciju područja jugoistočnog Srema u odnosu na tri osnovna tipa režima podzemnih voda. Ipak, na osnovu rezultata korelacione analize osnovnih faktora koji utiču na režim podzemnih voda, definisane su granice rejona pojedinih tipova režima podzemnih voda. Rejon I obuhvata klimatski tip podzeme vode, čije oscilacije odgovaraju vertikalnim faktorima vodnog bilansa (padavinama i isparavanju) i nisu pod uticajem vodostaja reka. Područje se povlači severno i istočno od linije Putinci, Golubinci, Stara Pazova, Batajnica i Dobanovci, uglavnom na području lesnog platoa. Unutar ovog rejona podzemne vode su na relativno velikoj dubini, a samo su izuzetno u dolinama skoro na površini terena. Rejon II zahvata klimatsko hidrološki tip podzemne vode, koji je prelaz između klimatskog i hidrološkog tipa, kod koga se uočavaju i uticaj faktora vertikalnog bilansa, kao i uticaj vodenih tokova na režim oscilacija podzemne vode. Klimatsko hidrološki tip podzemne vode zahvata centralni najniži deo analiziranog područja i južni deo srednje terase. Rejon III su priobalne površine uz Savu i Dunav na kojima je zastupljen hidrološki tip podzemnih voda, na kojima je izdan u hidrauličkoj vezi sa rekom Savom.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Groundwater types in Southeast Srem, Tipovi podzemnih voda jugoistočnog Srema",
pages = "29-19",
number = "1",
volume = "54",
doi = "10.2298/JAS0901019G"
}

Gregorić, E., Djurović, N., Rudić, D.,& Počuča, V.. (2009). Groundwater types in Southeast Srem. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 54(1), 19-29.
https://doi.org/10.2298/JAS0901019G

Gregorić E, Djurović N, Rudić D, Počuča V. Groundwater types in Southeast Srem. in Journal of Agricultural Sciences (Belgrade). 2009;54(1):19-29.
doi:10.2298/JAS0901019G .

Gregorić, Eniko, Djurović, Nevenka, Rudić, Dragan, Počuča, Vesna, "Groundwater types in Southeast Srem" in Journal of Agricultural Sciences (Belgrade), 54, no. 1 (2009):19-29,
https://doi.org/10.2298/JAS0901019G . .

TY  - CONF
AU  - Gregorić, Eniko
AU  - Petković, Sava
AU  - Lakić, Nada
AU  - Djurović, Nevenka
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2049
AB  - Since the area of the southeastern Srem was extremely endangered by excess water, several drainage water systems had to be built. In order to define the efficiency of the drainage systems constructed in the fifties of the twentieth century, field investigations of the groundwater regime in southeastern Srem were initiated. The very first results have indicated that the groundwater regime in southeastern Srem is very complex. Apart from the influence of the constructed drainage systems, the regime of groundwater depends upon several natural (precipitation, evapotranspiration, hydraulic and hydrological) characteristics of the Sava river, which represent the boundary of investigated area and anthropogenic factors. This paper present the results of analyses of the influence of drainage canal network on groundwater regimes in the catchments of Galovica and Petrac, in southeastern Srem.
AB  - Izuzetna ugroženost područja jugoistočnog Srema suvišnim vodama uslovila je izgradnju nekoliko velikih sistema za odvodnjavanje. U cilju utvrđivanja efikasnosti izgrađene kanalske mreže pedesetih godina dvadesetog veka započeta su istraživanja režima podzemnih voda u jugoistočnom Sremu. Već tada je konstatovano da je režim podzemnih voda u jugoistočnom Sremu veoma složen. Osim izgrađene kanalske mreža za odvodnjavanje, na karakteristike podzemnih voda utiče nekoliko prirodnih (padavine, evapotranspiracija, hidrološko-hidrauličke karakteristike reke Save koja ograničava ovo područje) i antropogenih faktora. U ovom radu su prikazani rezultati analize uticaja kanalske mreže za odvodnjavanje na režim podzemnih voda u slivnim područjima Galovica i Petrac u jugoistočnom Sremu.
PB  - Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd
C3  - Vodoprivreda
T1  - The influence of drainage canal network on groundwater regime in the catchment
T1  - Uticaj kanalske mreže za odvodnjavanje na režim podzemnih voda u slivu
EP  - 150
IS  - 4-6
SP  - 145
VL  - 41
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2049
ER  - 

@conference{
author = "Gregorić, Eniko and Petković, Sava and Lakić, Nada and Djurović, Nevenka",
year = "2009",
abstract = "Since the area of the southeastern Srem was extremely endangered by excess water, several drainage water systems had to be built. In order to define the efficiency of the drainage systems constructed in the fifties of the twentieth century, field investigations of the groundwater regime in southeastern Srem were initiated. The very first results have indicated that the groundwater regime in southeastern Srem is very complex. Apart from the influence of the constructed drainage systems, the regime of groundwater depends upon several natural (precipitation, evapotranspiration, hydraulic and hydrological) characteristics of the Sava river, which represent the boundary of investigated area and anthropogenic factors. This paper present the results of analyses of the influence of drainage canal network on groundwater regimes in the catchments of Galovica and Petrac, in southeastern Srem., Izuzetna ugroženost područja jugoistočnog Srema suvišnim vodama uslovila je izgradnju nekoliko velikih sistema za odvodnjavanje. U cilju utvrđivanja efikasnosti izgrađene kanalske mreže pedesetih godina dvadesetog veka započeta su istraživanja režima podzemnih voda u jugoistočnom Sremu. Već tada je konstatovano da je režim podzemnih voda u jugoistočnom Sremu veoma složen. Osim izgrađene kanalske mreža za odvodnjavanje, na karakteristike podzemnih voda utiče nekoliko prirodnih (padavine, evapotranspiracija, hidrološko-hidrauličke karakteristike reke Save koja ograničava ovo područje) i antropogenih faktora. U ovom radu su prikazani rezultati analize uticaja kanalske mreže za odvodnjavanje na režim podzemnih voda u slivnim područjima Galovica i Petrac u jugoistočnom Sremu.",
publisher = "Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd",
journal = "Vodoprivreda",
title = "The influence of drainage canal network on groundwater regime in the catchment, Uticaj kanalske mreže za odvodnjavanje na režim podzemnih voda u slivu",
pages = "150-145",
number = "4-6",
volume = "41",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2049"
}

Gregorić, E., Petković, S., Lakić, N.,& Djurović, N.. (2009). The influence of drainage canal network on groundwater regime in the catchment. in Vodoprivreda
Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd., 41(4-6), 145-150.
https://hdl.handle.net/21.15107/rcub_agrospace_2049

Gregorić E, Petković S, Lakić N, Djurović N. The influence of drainage canal network on groundwater regime in the catchment. in Vodoprivreda. 2009;41(4-6):145-150.
https://hdl.handle.net/21.15107/rcub_agrospace_2049 .

Gregorić, Eniko, Petković, Sava, Lakić, Nada, Djurović, Nevenka, "The influence of drainage canal network on groundwater regime in the catchment" in Vodoprivreda, 41, no. 4-6 (2009):145-150,
https://hdl.handle.net/21.15107/rcub_agrospace_2049 .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Djurović, Nevenka
AU  - Petković, Sava
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1978
AB  - Precipitation is, in addition to air temperature, the most essential climate element, and also one of the most significant factors in agricultural production. For this reason, it is focused special attention to and a detailed analysis of its spatial and temporal distribution. The analysis of temporal variability of precipitation shows the following: mean values of annual precipitation ranged between 332.6 mm and 852.3 mm, the driest year was 2000 (332.6 mm), and the rainiest year was 2001 (852.3 mm). The values of the average annual precipitation, their standard errors and standard deviations show a high variability per years: the highest total precipitation was greater than the average by 35%, and the lowest total was smaller by 47%. The precipitation decreased from December to February, and then increased until June. The maximal deviations from the average occurred in summer, and the minimal - in winter. The greatest between the maximum values (22.16%) and the minimal values of the percentage of average monthly-precipitation (7.66%) accounted for 14.5%. Precipitation can have rather non-uniform temporal and uniform spatial distributions. In the design of reclamation systems, in the cases of discontinuous measurements of precipitation data in the part of the area where the measurements can be supplemented. .
AB  - Padavine su, pored temperature vazduha, najbitniji klimatski element, a isto tako i jedan od najznačajnijih faktora u poljoprivrednoj proizvodnji. Zbog toga im se posvećuje posebna pažnja i daje detaljna analiza njihovih karakteristika. Analiza vremenske varijabilnosti padavina pokazuje: srednje vrednosti godišnjih suša padavina kreću se između 332,6 mm i 852,3 mm. Vrednosti prosečnih godišnjih suma padavina, njihove standardne greške i standardne devijacije pokazuju veliku varijabilnost po godinama: najveća suma padavina veća je od proseka za 35%, a najmanja manja za 47%. Visine padavina opadaju od decembra do februara, zatim rastu do juna. Najveća odstupanja od proseka su leti. a najmanja zimi. Najveća amplituda između maksimalne vrednosti (22.16%) i minimalne vrednosti procentualnog iznosa prosečne mesečne šume padavina (7.66%) iznosi 14,5%. Padavine pokazuju veliku vremensku neravnomernost, dok su u prostornom smislu dosta ujednačene. Za potrebe projektovanja melioracionih sistema moguće je nedostajuće podatke u nizovima merenja zameniti na osnovu jakih korelativnih veza sa merenim podacima. .
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, II: Spatial and temporal distribution of precipitation in Southeastern Srem from the aspect of agriculture
T1  - Procena uniformnosti padavina u jugoistočnom Sremu i njena primena u melioracijama zemljišta, II - prostorna i vremenska raspodela padavina na području jugoistočnog Srema sa aspekta poljoprivrede
EP  - 71
IS  - 1
SP  - 61
VL  - 58
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1978
ER  - 

@article{
author = "Gregorić, Eniko and Djurović, Nevenka and Petković, Sava",
year = "2009",
abstract = "Precipitation is, in addition to air temperature, the most essential climate element, and also one of the most significant factors in agricultural production. For this reason, it is focused special attention to and a detailed analysis of its spatial and temporal distribution. The analysis of temporal variability of precipitation shows the following: mean values of annual precipitation ranged between 332.6 mm and 852.3 mm, the driest year was 2000 (332.6 mm), and the rainiest year was 2001 (852.3 mm). The values of the average annual precipitation, their standard errors and standard deviations show a high variability per years: the highest total precipitation was greater than the average by 35%, and the lowest total was smaller by 47%. The precipitation decreased from December to February, and then increased until June. The maximal deviations from the average occurred in summer, and the minimal - in winter. The greatest between the maximum values (22.16%) and the minimal values of the percentage of average monthly-precipitation (7.66%) accounted for 14.5%. Precipitation can have rather non-uniform temporal and uniform spatial distributions. In the design of reclamation systems, in the cases of discontinuous measurements of precipitation data in the part of the area where the measurements can be supplemented. ., Padavine su, pored temperature vazduha, najbitniji klimatski element, a isto tako i jedan od najznačajnijih faktora u poljoprivrednoj proizvodnji. Zbog toga im se posvećuje posebna pažnja i daje detaljna analiza njihovih karakteristika. Analiza vremenske varijabilnosti padavina pokazuje: srednje vrednosti godišnjih suša padavina kreću se između 332,6 mm i 852,3 mm. Vrednosti prosečnih godišnjih suma padavina, njihove standardne greške i standardne devijacije pokazuju veliku varijabilnost po godinama: najveća suma padavina veća je od proseka za 35%, a najmanja manja za 47%. Visine padavina opadaju od decembra do februara, zatim rastu do juna. Najveća odstupanja od proseka su leti. a najmanja zimi. Najveća amplituda između maksimalne vrednosti (22.16%) i minimalne vrednosti procentualnog iznosa prosečne mesečne šume padavina (7.66%) iznosi 14,5%. Padavine pokazuju veliku vremensku neravnomernost, dok su u prostornom smislu dosta ujednačene. Za potrebe projektovanja melioracionih sistema moguće je nedostajuće podatke u nizovima merenja zameniti na osnovu jakih korelativnih veza sa merenim podacima. .",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, II: Spatial and temporal distribution of precipitation in Southeastern Srem from the aspect of agriculture, Procena uniformnosti padavina u jugoistočnom Sremu i njena primena u melioracijama zemljišta, II - prostorna i vremenska raspodela padavina na području jugoistočnog Srema sa aspekta poljoprivrede",
pages = "71-61",
number = "1",
volume = "58",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1978"
}

Gregorić, E., Djurović, N.,& Petković, S.. (2009). Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, II: Spatial and temporal distribution of precipitation in Southeastern Srem from the aspect of agriculture. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 58(1), 61-71.
https://hdl.handle.net/21.15107/rcub_agrospace_1978

Gregorić E, Djurović N, Petković S. Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, II: Spatial and temporal distribution of precipitation in Southeastern Srem from the aspect of agriculture. in Zemljište i biljka. 2009;58(1):61-71.
https://hdl.handle.net/21.15107/rcub_agrospace_1978 .

Gregorić, Eniko, Djurović, Nevenka, Petković, Sava, "Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, II: Spatial and temporal distribution of precipitation in Southeastern Srem from the aspect of agriculture" in Zemljište i biljka, 58, no. 1 (2009):61-71,
https://hdl.handle.net/21.15107/rcub_agrospace_1978 .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Djurović, Nevenka
AU  - Lakić, Nada
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1972
AB  - In the design of reclamation systems, there are frequent cases of discontinuous measurements of precipitation. As precipitation can have rather non-uniform temporal and spatial distributions the objective of this paper is to identify the main characteristics of precipitation for the region of Southeastern Srem, to calculate the correlation between the data from different gauging stations, so as to be able to supplement the data in the part of the area where the measurements are missing. The precipitation amounts recorded at the study pluviometric stations show a good correlation with the precipitation amounts recorded at the basic meteorological stations both for annual precipitation, and for monthly precipitation. The correlation is the strongest in autumn and winter (up to 0.99), and because of spring and summer storms, often of strong intensity, correlation coefficients are a little lower in these seasons. It should be concluded that there is a very good agreement between the results of: arithmetic mean method - 633.3 mm, Thiessen polygon method 628.08 mm and isohyetal method 632.8 mm. This is explained by the fact that the terrain is flat and that the selected stations cover the area uniformly. The missing data can be supplemented based on regression equations. .
AB  - Pri projektovanju melioracionih sistema često postoje delovi područja na kojima nisu izvedena kontinuirana merenja padavina. S obzirom da padavine mogu imati veoma neravnomernu vremensku i prostornu raspodelu, cilj ovog rada je da se za područje jugoistočnog Srema utvrde osnovne karakteristike padavina, ispita korelaciona veza između podataka sa različitih stanica u cilju mogućnosti dopunjavanja podataka na delovima područja gde merenja nedostaju. Padavine na osmatranim kišomernim stanicama pokazuju dobru korelaciju sa padavinama na baznim meteorološkim stanicama i to za godišnje sume padavina, kao i za mesečne. Vrednosti koeficijenata korelacije za mesečne sume padavina su r=0.77-0.90 a na nivou godišnjih suma padavina r - 0,60 do 0,96. Korelativna veza je najjača u jesen i zimu (do 0.99), dok su zbog prolećnih i letnjih pljuskova, često jakog intenziteta, koeficijenti korelacije nešto niži u tim godišnjim dobima. Treba konstatovati veoma dobro slaganje između rezultata: aritmetička sredina - 633.3 mm, metoda Thiessenovih poligona - 628,08 mm i metoda izohijeta - 632.8 mm. Ovo se obrazlaže činjenicom da je teren ravničarski i da izabrane stanice ravnomerno pokrivaju područje. To daje mogućnost dopunjavanja nedostajućih podataka na osnovu regresionih jednačina. .
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, I: Correlation analysis of precipitation in Southeastern Srem aiming at the supplementation of missing data
T1  - Procena uniformnosti padavina u jugoistočnom Sremu i njena primena u melioracijama zemljišta, I - korelaciona analiza padavina na prostoru jugoistočnog Srema u cilju dopunjavanja nedostajućih podataka
EP  - 60
IS  - 1
SP  - 47
VL  - 58
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1972
ER  - 

@article{
author = "Gregorić, Eniko and Djurović, Nevenka and Lakić, Nada",
year = "2009",
abstract = "In the design of reclamation systems, there are frequent cases of discontinuous measurements of precipitation. As precipitation can have rather non-uniform temporal and spatial distributions the objective of this paper is to identify the main characteristics of precipitation for the region of Southeastern Srem, to calculate the correlation between the data from different gauging stations, so as to be able to supplement the data in the part of the area where the measurements are missing. The precipitation amounts recorded at the study pluviometric stations show a good correlation with the precipitation amounts recorded at the basic meteorological stations both for annual precipitation, and for monthly precipitation. The correlation is the strongest in autumn and winter (up to 0.99), and because of spring and summer storms, often of strong intensity, correlation coefficients are a little lower in these seasons. It should be concluded that there is a very good agreement between the results of: arithmetic mean method - 633.3 mm, Thiessen polygon method 628.08 mm and isohyetal method 632.8 mm. This is explained by the fact that the terrain is flat and that the selected stations cover the area uniformly. The missing data can be supplemented based on regression equations. ., Pri projektovanju melioracionih sistema često postoje delovi područja na kojima nisu izvedena kontinuirana merenja padavina. S obzirom da padavine mogu imati veoma neravnomernu vremensku i prostornu raspodelu, cilj ovog rada je da se za područje jugoistočnog Srema utvrde osnovne karakteristike padavina, ispita korelaciona veza između podataka sa različitih stanica u cilju mogućnosti dopunjavanja podataka na delovima područja gde merenja nedostaju. Padavine na osmatranim kišomernim stanicama pokazuju dobru korelaciju sa padavinama na baznim meteorološkim stanicama i to za godišnje sume padavina, kao i za mesečne. Vrednosti koeficijenata korelacije za mesečne sume padavina su r=0.77-0.90 a na nivou godišnjih suma padavina r - 0,60 do 0,96. Korelativna veza je najjača u jesen i zimu (do 0.99), dok su zbog prolećnih i letnjih pljuskova, često jakog intenziteta, koeficijenti korelacije nešto niži u tim godišnjim dobima. Treba konstatovati veoma dobro slaganje između rezultata: aritmetička sredina - 633.3 mm, metoda Thiessenovih poligona - 628,08 mm i metoda izohijeta - 632.8 mm. Ovo se obrazlaže činjenicom da je teren ravničarski i da izabrane stanice ravnomerno pokrivaju područje. To daje mogućnost dopunjavanja nedostajućih podataka na osnovu regresionih jednačina. .",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, I: Correlation analysis of precipitation in Southeastern Srem aiming at the supplementation of missing data, Procena uniformnosti padavina u jugoistočnom Sremu i njena primena u melioracijama zemljišta, I - korelaciona analiza padavina na prostoru jugoistočnog Srema u cilju dopunjavanja nedostajućih podataka",
pages = "60-47",
number = "1",
volume = "58",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1972"
}

Gregorić, E., Djurović, N.,& Lakić, N.. (2009). Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, I: Correlation analysis of precipitation in Southeastern Srem aiming at the supplementation of missing data. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 58(1), 47-60.
https://hdl.handle.net/21.15107/rcub_agrospace_1972

Gregorić E, Djurović N, Lakić N. Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, I: Correlation analysis of precipitation in Southeastern Srem aiming at the supplementation of missing data. in Zemljište i biljka. 2009;58(1):47-60.
https://hdl.handle.net/21.15107/rcub_agrospace_1972 .

Gregorić, Eniko, Djurović, Nevenka, Lakić, Nada, "Estimate of precipitation uniformity in Southeastern Srem and its application in soil reclamation, I: Correlation analysis of precipitation in Southeastern Srem aiming at the supplementation of missing data" in Zemljište i biljka, 58, no. 1 (2009):47-60,
https://hdl.handle.net/21.15107/rcub_agrospace_1972 .

TY  - JOUR
AU  - Gregorić, Eniko
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1949
AB  - This paper presents the results of research and analyzes of the effects of a drainage canal network on the water balance of southeastern Srem. The paper was derived from a doctoral thesis which contains a detailed study of key components of the water balance of southeastern Srem, including actual amounts of water removed via the drainage canal network. A linear multiple regression model was used to establish an analytical relationship between the amounts of evacuated water (a dependent variable) and four key parameters (total precipitation, total potential evapotranspiration, average stage of the Sava River, and average groundwater level - independent variables). This correlation allows for the forecasting of hydrologic events based on historic measured data and provides answers to some important questions regarding water management and soil conservation practices. The efficiency of the drainage canal network is closely linked with its maintenance. The paper shows that canal maintenance is inadequate, mainly due to financial issues. In some parts of the studied area, drainage canals have become virtual open sewers. For this reason, the future development of the drainage system must be part of comprehensive and integrated water management in southeastern Srem.
AB  - U ovom radu prikazani su rezultati istraživanja analize uticaja kanalske mreže za odvodnjavanje na bilans voda na području jugoistočnog Srema. Rad je proizašao iz doktorske disertacije koja je obuhvatala detaljnu analizu ključnih komponenti vodnog bilansa jugoistočnog Srema, uključujući i stvarne količine voda koje se odvode kanalskom mrežom za odvodnjavanje. Primenom modela linearne višestruke regresije uspostavljena je analitička veza između količina evakuisane vode, kao zavisno promenljive, i četiri ključna parametra (suma padavina, suma potencijalne evapotranspiracije, srednji vodostaj Save i srednji nivo podzemne vode) kao nezavisno promenljivih. Ova veza omogućuje prognozu hidroloških pojava na osnovu izmerenih podataka iz prošlosti. Time je dat odgovor na neka pitanja važna za meliorativnu praksu. Efikasnost kanalske mreže za odvodnjavanje je u tesnoj vezi sa njenim održavanjem. U radu je pokazano da održavanje kanala nije zadovoljavajuće, a osnovni uzrok postojeće stanje su finansijski problemi. Na pojedinim delovima područja, kanali sistema za odvodnjavanje su postali kolektori otpadnih voda. Zbog toga budući razvoj sistema za odvodnjavanje mora biti u funkciji kompleksnog i integralnog upravljanja vodama na području jugoistočnog Srema.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Canal network effects on the water balance in southeastern Srem
T1  - Uticaj kanalske mreže na bilans voda jugoistočnog Srema
EP  - 134
IS  - 2
SP  - 118
VL  - 54
DO  - 10.2298/JAS0902118G
ER  - 

@article{
author = "Gregorić, Eniko",
year = "2009",
abstract = "This paper presents the results of research and analyzes of the effects of a drainage canal network on the water balance of southeastern Srem. The paper was derived from a doctoral thesis which contains a detailed study of key components of the water balance of southeastern Srem, including actual amounts of water removed via the drainage canal network. A linear multiple regression model was used to establish an analytical relationship between the amounts of evacuated water (a dependent variable) and four key parameters (total precipitation, total potential evapotranspiration, average stage of the Sava River, and average groundwater level - independent variables). This correlation allows for the forecasting of hydrologic events based on historic measured data and provides answers to some important questions regarding water management and soil conservation practices. The efficiency of the drainage canal network is closely linked with its maintenance. The paper shows that canal maintenance is inadequate, mainly due to financial issues. In some parts of the studied area, drainage canals have become virtual open sewers. For this reason, the future development of the drainage system must be part of comprehensive and integrated water management in southeastern Srem., U ovom radu prikazani su rezultati istraživanja analize uticaja kanalske mreže za odvodnjavanje na bilans voda na području jugoistočnog Srema. Rad je proizašao iz doktorske disertacije koja je obuhvatala detaljnu analizu ključnih komponenti vodnog bilansa jugoistočnog Srema, uključujući i stvarne količine voda koje se odvode kanalskom mrežom za odvodnjavanje. Primenom modela linearne višestruke regresije uspostavljena je analitička veza između količina evakuisane vode, kao zavisno promenljive, i četiri ključna parametra (suma padavina, suma potencijalne evapotranspiracije, srednji vodostaj Save i srednji nivo podzemne vode) kao nezavisno promenljivih. Ova veza omogućuje prognozu hidroloških pojava na osnovu izmerenih podataka iz prošlosti. Time je dat odgovor na neka pitanja važna za meliorativnu praksu. Efikasnost kanalske mreže za odvodnjavanje je u tesnoj vezi sa njenim održavanjem. U radu je pokazano da održavanje kanala nije zadovoljavajuće, a osnovni uzrok postojeće stanje su finansijski problemi. Na pojedinim delovima područja, kanali sistema za odvodnjavanje su postali kolektori otpadnih voda. Zbog toga budući razvoj sistema za odvodnjavanje mora biti u funkciji kompleksnog i integralnog upravljanja vodama na području jugoistočnog Srema.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Canal network effects on the water balance in southeastern Srem, Uticaj kanalske mreže na bilans voda jugoistočnog Srema",
pages = "134-118",
number = "2",
volume = "54",
doi = "10.2298/JAS0902118G"
}

Gregorić, E.. (2009). Canal network effects on the water balance in southeastern Srem. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 54(2), 118-134.
https://doi.org/10.2298/JAS0902118G

Gregorić E. Canal network effects on the water balance in southeastern Srem. in Journal of Agricultural Sciences (Belgrade). 2009;54(2):118-134.
doi:10.2298/JAS0902118G .

Gregorić, Eniko, "Canal network effects on the water balance in southeastern Srem" in Journal of Agricultural Sciences (Belgrade), 54, no. 2 (2009):118-134,
https://doi.org/10.2298/JAS0902118G . .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Djurović, Nevenka
AU  - Petković, Sava
AU  - Stričević, Ružica
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1929
AB  - The aim of this paper is to present the state of the channel network in Southeast Srem, as well as the measures of drainage system maintenance. Inadequate maintenance resulted in the decrease in the drainage system functionality. The density of the channel network (30-40 m/km2) shows that the greater part of the region is traversed by a dense network of channels capable of taking in all the designed surplus water. Despite the great density of the channel network in the region, there are occasional processes of over logging. The channel network was not adequately maintained during many years. From 2004. the scope of works on network maintenance has been significantly increased, but the consequences of multiannual period of insufficient maintenance have not yet been reclaimed. Considering the significance of drainage in Southeast Srem. U is necessary to evaluate the state of the channels and the reasons of their lower capability, as well as to determine the need of reconstruction and rehabilitation of the existing drainage channels and the support facilities.
AB  - Cilj ovog rada je da pokaže stanje kanalske mreže jugoistočnog Srema kao i obim primenjenih mera održavanja sistema za odvodnjavanje. Neodgovarajuće održavanje je za posledicu imalo smanjenje funkcionalnosti sistema za odvodnjavanje. Izgrađenost kanalske mreže (30-40 m/km2) pokazuje da je površina većeg dela područja ispresecana gustom mrežom kanala koji su sposobni da prihvate sve projektovane viškove voda. I pored velike gustine kanalske mreže na području se povremeno uočavaju procesi prevlaživanja zemljišta. Kanalska mreža tokom dugog niza godina nije održavana u meri u kojoj je to potrebno. Od 2004. godine značajno je povećan obim radova na održavanju kanalske mreže ali još uvek nije nadoknađen zaostatak nastao tokom višegodišnjeg perioda smanjenog obima radova na održavanju kanala. S obzirom na značaj odvodnjavanja područja jugoistočnog Srema, potrebno je utvrditi stanje li kome se kanali nalaze i razloge njihove smanjene eksploatacione sposobnosti kao i utvrditi potrebu za rekonstrukcijom i revitalizacijom postojećih kanala za odvodnjavanje i pratećih objekata na njima. .
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Maintenance of the drainage system in Southeast Srem
T1  - Održavanje s1stema za odvodnjavanje u jugoistočnom Sremu
EP  - 12
IS  - 1
SP  - 2
VL  - 58
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1929
ER  - 

@article{
author = "Gregorić, Eniko and Djurović, Nevenka and Petković, Sava and Stričević, Ružica",
year = "2009",
abstract = "The aim of this paper is to present the state of the channel network in Southeast Srem, as well as the measures of drainage system maintenance. Inadequate maintenance resulted in the decrease in the drainage system functionality. The density of the channel network (30-40 m/km2) shows that the greater part of the region is traversed by a dense network of channels capable of taking in all the designed surplus water. Despite the great density of the channel network in the region, there are occasional processes of over logging. The channel network was not adequately maintained during many years. From 2004. the scope of works on network maintenance has been significantly increased, but the consequences of multiannual period of insufficient maintenance have not yet been reclaimed. Considering the significance of drainage in Southeast Srem. U is necessary to evaluate the state of the channels and the reasons of their lower capability, as well as to determine the need of reconstruction and rehabilitation of the existing drainage channels and the support facilities., Cilj ovog rada je da pokaže stanje kanalske mreže jugoistočnog Srema kao i obim primenjenih mera održavanja sistema za odvodnjavanje. Neodgovarajuće održavanje je za posledicu imalo smanjenje funkcionalnosti sistema za odvodnjavanje. Izgrađenost kanalske mreže (30-40 m/km2) pokazuje da je površina većeg dela područja ispresecana gustom mrežom kanala koji su sposobni da prihvate sve projektovane viškove voda. I pored velike gustine kanalske mreže na području se povremeno uočavaju procesi prevlaživanja zemljišta. Kanalska mreža tokom dugog niza godina nije održavana u meri u kojoj je to potrebno. Od 2004. godine značajno je povećan obim radova na održavanju kanalske mreže ali još uvek nije nadoknađen zaostatak nastao tokom višegodišnjeg perioda smanjenog obima radova na održavanju kanala. S obzirom na značaj odvodnjavanja područja jugoistočnog Srema, potrebno je utvrditi stanje li kome se kanali nalaze i razloge njihove smanjene eksploatacione sposobnosti kao i utvrditi potrebu za rekonstrukcijom i revitalizacijom postojećih kanala za odvodnjavanje i pratećih objekata na njima. .",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Maintenance of the drainage system in Southeast Srem, Održavanje s1stema za odvodnjavanje u jugoistočnom Sremu",
pages = "12-2",
number = "1",
volume = "58",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1929"
}

Gregorić, E., Djurović, N., Petković, S.,& Stričević, R.. (2009). Maintenance of the drainage system in Southeast Srem. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 58(1), 2-12.
https://hdl.handle.net/21.15107/rcub_agrospace_1929

Gregorić E, Djurović N, Petković S, Stričević R. Maintenance of the drainage system in Southeast Srem. in Zemljište i biljka. 2009;58(1):2-12.
https://hdl.handle.net/21.15107/rcub_agrospace_1929 .

Gregorić, Eniko, Djurović, Nevenka, Petković, Sava, Stričević, Ružica, "Maintenance of the drainage system in Southeast Srem" in Zemljište i biljka, 58, no. 1 (2009):2-12,
https://hdl.handle.net/21.15107/rcub_agrospace_1929 .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Djurović, Nevenka
AU  - Rudić, Dragan
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1892
AB  - The area of Southeast Srem is rich in groundwater. Water regime of the first aquifer has a great significance from the standpoint of agricultural production. 32 piezometers were singled out and groundwater depth was measured aiming at the analysis of some groundwater characteristics. In the area of Southeast Srem, groundwater level fluctuates very widely, depending on the distance from water courses. Mean value of groundwater fluctuation in Southeast Srem amounts to 3.49m. In this area, groundwater moves in Southeast direction, i.e. in the direction of the main receiving streams of the region, the Sava and the Danube. The greatest risk of groundwater overflowing in Southeast Srem occurs in the central parts of the loess terrace and in low parts of the alluvial plain along the Sava, where groundwater level is at the depth of less than 1m.
AB  - Područje jugoistočnog Srema obiluje podzemnim vodama. Režim voda prve izdani sa stanovišta poljoprivredne proizvodnje ima veliki značaj. U cilju analize nekih karakteristika podzemnih voda područja izdvojeno je 32 pijezometra na kojima su merene dubine podzemnih voda. Nivo podzemne vode na području jugoistočnog Srema osciluju u veoma širokom opsegu, u zavisnosti od udaljenosti od vodenih tokova. Srednja vrednost oscilacija podzemnih voda na području jugoistočnog Srema iznosi 3,49m. Podzemnih vode područja kreću se u pravcu jugoistoka, tj. u pravcu prema glavnim recipijentima ovog područja, Savi i Dunavu. Najveću opasnost od izlivanja podzemnih voda na području jugoistočnog Srema imaju centralni delovi lesne terase i niski delovi aluvijalne ravni uz Savu na kojima se podzemna voda nalazi na dubini manjoj od 1m.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Some characteristics of groundwater in Southeast Srem
T1  - Neke karakteristike podzemnih voda u jugoistočnom Sremu
EP  - 44
IS  - 1
SP  - 31
VL  - 54
DO  - 10.2298/JAS0901031G
ER  - 

@article{
author = "Gregorić, Eniko and Djurović, Nevenka and Rudić, Dragan",
year = "2009",
abstract = "The area of Southeast Srem is rich in groundwater. Water regime of the first aquifer has a great significance from the standpoint of agricultural production. 32 piezometers were singled out and groundwater depth was measured aiming at the analysis of some groundwater characteristics. In the area of Southeast Srem, groundwater level fluctuates very widely, depending on the distance from water courses. Mean value of groundwater fluctuation in Southeast Srem amounts to 3.49m. In this area, groundwater moves in Southeast direction, i.e. in the direction of the main receiving streams of the region, the Sava and the Danube. The greatest risk of groundwater overflowing in Southeast Srem occurs in the central parts of the loess terrace and in low parts of the alluvial plain along the Sava, where groundwater level is at the depth of less than 1m., Područje jugoistočnog Srema obiluje podzemnim vodama. Režim voda prve izdani sa stanovišta poljoprivredne proizvodnje ima veliki značaj. U cilju analize nekih karakteristika podzemnih voda područja izdvojeno je 32 pijezometra na kojima su merene dubine podzemnih voda. Nivo podzemne vode na području jugoistočnog Srema osciluju u veoma širokom opsegu, u zavisnosti od udaljenosti od vodenih tokova. Srednja vrednost oscilacija podzemnih voda na području jugoistočnog Srema iznosi 3,49m. Podzemnih vode područja kreću se u pravcu jugoistoka, tj. u pravcu prema glavnim recipijentima ovog područja, Savi i Dunavu. Najveću opasnost od izlivanja podzemnih voda na području jugoistočnog Srema imaju centralni delovi lesne terase i niski delovi aluvijalne ravni uz Savu na kojima se podzemna voda nalazi na dubini manjoj od 1m.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Some characteristics of groundwater in Southeast Srem, Neke karakteristike podzemnih voda u jugoistočnom Sremu",
pages = "44-31",
number = "1",
volume = "54",
doi = "10.2298/JAS0901031G"
}

Gregorić, E., Djurović, N.,& Rudić, D.. (2009). Some characteristics of groundwater in Southeast Srem. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 54(1), 31-44.
https://doi.org/10.2298/JAS0901031G

Gregorić E, Djurović N, Rudić D. Some characteristics of groundwater in Southeast Srem. in Journal of Agricultural Sciences (Belgrade). 2009;54(1):31-44.
doi:10.2298/JAS0901031G .

Gregorić, Eniko, Djurović, Nevenka, Rudić, Dragan, "Some characteristics of groundwater in Southeast Srem" in Journal of Agricultural Sciences (Belgrade), 54, no. 1 (2009):31-44,
https://doi.org/10.2298/JAS0901031G . .

TY  - JOUR
AU  - Gregorić, Eniko
AU  - Petković, Sava
PY  - 2007
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1513
AB  - The survey of the groundwater regime in southeastern Srem has started at the beginning of fifties of XX century and has been regularly carried out till now. The early surveys’ objective was to solve the problem of excessive soil moisture due to high level of groundwater. This problem significantly reduced the crop yields in the area. The very first results have indicated that groundwater regime in southeastern Srem is very complex due to the influence of several natural factors (meteorological, climatic and hydrological). All these factors had to be measured and observed in order to determine the characteristics of the groundwater regime. However, the groundwater regime is also influenced by two significant anthropogenic factors: the backwater effects, created after the construction of ‘Iron Gate’ hydroelectric power scheme and the operation of several wells for Belgrade water supply at left bank of the Sava River. After the construction of ‘Iron Gate’ hydroelectric power scheme, the natural groundwater regime in southeastern Srem and at the area of Donje polje has been completely changed. The groundwater regime was additionally complicated after the construction of water supply wells at left bank of the Sava River. The results of the analysis of the influence of several natural and anthropogenic factors on groundwater regime in Donje Polje are presented in this paper..
AB  - Istraživanja režima podzemnih voda u jugoistočnom Sremu, započeta su pedesetih godina dvadesetog veka i obavljaju se do danas. U početku su ta istraživanja bila uglavnom vezana za prevlaživanje poljoprivrednih zemljišta, koje je prouzrokovalo značajna smanjenja poljoprivredne proizvodnje. Već tada je konstatovano da je režim podzemnih voda u jugoistočnom Sremu veoma složen i da se nalazi pod uticajem nekoliko prirodnih faktora, tako da je za njegovo rešavanje neophodno meriti i opažati veći broj meteoroloških, klimatskih i hidroloških parametara. Međutim, pored prirodnih činilaca, na režim podzemnih voda u jugoistočnom Sremu utiču i dva vrlo značajna antropogena faktora uspor od brane "Đerdap I" i rad reni bunara beogradskog vodovoda. Izgradnjom hidroelektrane "Đerdap I", usled stvorenog uspora, potpuno je promenjen prirodan režim podzemnih voda na posmatranom području. Režim podzemnih voda je još više promenjen izgradnjom velikog broja reni bunara duž leve obale reke Save. U ovom radu su prikazani rezultati analize uticaja navedenih prirodnih i antropogenih faktora na režim podzemnih voda na području Donjeg polja u jugoistočnom Sremu.
PB  - Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd
T2  - Voda i sanitarna tehnika
T1  - The influence of natural and anthropogenic factors on groundwater regime in the area of Donje Polje in Southeastern Srem
T1  - Uticaj prirodnih i antropogenih faktora na režim podzemnih voda na području Donjeg Polja u jugoistočnom Sremu
EP  - 50
IS  - 6
SP  - 39
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1513
ER  - 

@article{
author = "Gregorić, Eniko and Petković, Sava",
year = "2007",
abstract = "The survey of the groundwater regime in southeastern Srem has started at the beginning of fifties of XX century and has been regularly carried out till now. The early surveys’ objective was to solve the problem of excessive soil moisture due to high level of groundwater. This problem significantly reduced the crop yields in the area. The very first results have indicated that groundwater regime in southeastern Srem is very complex due to the influence of several natural factors (meteorological, climatic and hydrological). All these factors had to be measured and observed in order to determine the characteristics of the groundwater regime. However, the groundwater regime is also influenced by two significant anthropogenic factors: the backwater effects, created after the construction of ‘Iron Gate’ hydroelectric power scheme and the operation of several wells for Belgrade water supply at left bank of the Sava River. After the construction of ‘Iron Gate’ hydroelectric power scheme, the natural groundwater regime in southeastern Srem and at the area of Donje polje has been completely changed. The groundwater regime was additionally complicated after the construction of water supply wells at left bank of the Sava River. The results of the analysis of the influence of several natural and anthropogenic factors on groundwater regime in Donje Polje are presented in this paper.., Istraživanja režima podzemnih voda u jugoistočnom Sremu, započeta su pedesetih godina dvadesetog veka i obavljaju se do danas. U početku su ta istraživanja bila uglavnom vezana za prevlaživanje poljoprivrednih zemljišta, koje je prouzrokovalo značajna smanjenja poljoprivredne proizvodnje. Već tada je konstatovano da je režim podzemnih voda u jugoistočnom Sremu veoma složen i da se nalazi pod uticajem nekoliko prirodnih faktora, tako da je za njegovo rešavanje neophodno meriti i opažati veći broj meteoroloških, klimatskih i hidroloških parametara. Međutim, pored prirodnih činilaca, na režim podzemnih voda u jugoistočnom Sremu utiču i dva vrlo značajna antropogena faktora uspor od brane "Đerdap I" i rad reni bunara beogradskog vodovoda. Izgradnjom hidroelektrane "Đerdap I", usled stvorenog uspora, potpuno je promenjen prirodan režim podzemnih voda na posmatranom području. Režim podzemnih voda je još više promenjen izgradnjom velikog broja reni bunara duž leve obale reke Save. U ovom radu su prikazani rezultati analize uticaja navedenih prirodnih i antropogenih faktora na režim podzemnih voda na području Donjeg polja u jugoistočnom Sremu.",
publisher = "Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd",
journal = "Voda i sanitarna tehnika",
title = "The influence of natural and anthropogenic factors on groundwater regime in the area of Donje Polje in Southeastern Srem, Uticaj prirodnih i antropogenih faktora na režim podzemnih voda na području Donjeg Polja u jugoistočnom Sremu",
pages = "50-39",
number = "6",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1513"
}

Gregorić, E.,& Petković, S.. (2007). The influence of natural and anthropogenic factors on groundwater regime in the area of Donje Polje in Southeastern Srem. in Voda i sanitarna tehnika
Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd., 37(6), 39-50.
https://hdl.handle.net/21.15107/rcub_agrospace_1513

Gregorić E, Petković S. The influence of natural and anthropogenic factors on groundwater regime in the area of Donje Polje in Southeastern Srem. in Voda i sanitarna tehnika. 2007;37(6):39-50.
https://hdl.handle.net/21.15107/rcub_agrospace_1513 .

Gregorić, Eniko, Petković, Sava, "The influence of natural and anthropogenic factors on groundwater regime in the area of Donje Polje in Southeastern Srem" in Voda i sanitarna tehnika, 37, no. 6 (2007):39-50,
https://hdl.handle.net/21.15107/rcub_agrospace_1513 .