TY  - JOUR
AU  - Nikolić-Jokanović, Vesna
AU  - Jokanović, Dušan
AU  - Savić, Radovan
AU  - Petrović, Nenad
AU  - Marinković, Marko
AU  - Tubić, Bojan
AU  - Vasić, Ivana
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1486
AB  - Water is one of the key ecological factors that has a great impact to development and productivity of lowland species such as Quercus robur. This paper deals with water regime influence to site conditions of these species and how actually changeable soil moisture affects Q. robur. Studied area includes a protective embankment built on the river bank in order to eliminate flooding effect, which means that all needs for water these associations provide from rainfalls and groundwater. Water regime was monitored during two critical years (extremely dry and extremely wet) on four soil types - Planosol, Fluvisol and Gleysol that belong to hydromorphic (three experimental plots) and Chernozem which belongs to automorphic soils (three experimental plots), respectively. It was studied the distribution of rainfalls and groundwater during the growing seasons and how it affects total and available water amount in the soil. The main focus should be given to available water, because it is located in capillary pores and plants can utilize it. Bearing in mind rainfalls makes just 15-20% of the total water amount in the soil it is much more significant to evaluate its proportion in available water. Based on obtained results, we can deduce that much more suitable site conditions for Q. robur are present on hydromorphic soils due to much greater proportion of groundwater.
T2  - Journal of Hydrology and Hydromechanics
T1  - Soil moisture regime in lowland forests - quantity and availability of water
EP  - 24
IS  - 1
SP  - 15
VL  - 72
DO  - 10.2478/johh-2023-0037
UR  - conv_1764
ER  - 

@article{
author = "Nikolić-Jokanović, Vesna and Jokanović, Dušan and Savić, Radovan and Petrović, Nenad and Marinković, Marko and Tubić, Bojan and Vasić, Ivana",
year = "2024",
abstract = "Water is one of the key ecological factors that has a great impact to development and productivity of lowland species such as Quercus robur. This paper deals with water regime influence to site conditions of these species and how actually changeable soil moisture affects Q. robur. Studied area includes a protective embankment built on the river bank in order to eliminate flooding effect, which means that all needs for water these associations provide from rainfalls and groundwater. Water regime was monitored during two critical years (extremely dry and extremely wet) on four soil types - Planosol, Fluvisol and Gleysol that belong to hydromorphic (three experimental plots) and Chernozem which belongs to automorphic soils (three experimental plots), respectively. It was studied the distribution of rainfalls and groundwater during the growing seasons and how it affects total and available water amount in the soil. The main focus should be given to available water, because it is located in capillary pores and plants can utilize it. Bearing in mind rainfalls makes just 15-20% of the total water amount in the soil it is much more significant to evaluate its proportion in available water. Based on obtained results, we can deduce that much more suitable site conditions for Q. robur are present on hydromorphic soils due to much greater proportion of groundwater.",
journal = "Journal of Hydrology and Hydromechanics",
title = "Soil moisture regime in lowland forests - quantity and availability of water",
pages = "24-15",
number = "1",
volume = "72",
doi = "10.2478/johh-2023-0037",
url = "conv_1764"
}

Nikolić-Jokanović, V., Jokanović, D., Savić, R., Petrović, N., Marinković, M., Tubić, B.,& Vasić, I.. (2024). Soil moisture regime in lowland forests - quantity and availability of water. in Journal of Hydrology and Hydromechanics, 72(1), 15-24.
https://doi.org/10.2478/johh-2023-0037
conv_1764

Nikolić-Jokanović V, Jokanović D, Savić R, Petrović N, Marinković M, Tubić B, Vasić I. Soil moisture regime in lowland forests - quantity and availability of water. in Journal of Hydrology and Hydromechanics. 2024;72(1):15-24.
doi:10.2478/johh-2023-0037
conv_1764 .

Nikolić-Jokanović, Vesna, Jokanović, Dušan, Savić, Radovan, Petrović, Nenad, Marinković, Marko, Tubić, Bojan, Vasić, Ivana, "Soil moisture regime in lowland forests - quantity and availability of water" in Journal of Hydrology and Hydromechanics, 72, no. 1 (2024):15-24,
https://doi.org/10.2478/johh-2023-0037 .,
conv_1764 .

TY  - JOUR
AU  - Nikolić-Jokanović, Vesna
AU  - Jokanović, Dušan
AU  - Savić, Radovan
AU  - Vulević, Tijana
AU  - Anđelković, Aleksandar
AU  - Lazarević, Katarina
AU  - Kovačević, Ranka
AU  - Momirović, Natalija
PY  - 2023
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1393
AB  - In the spacious inundation area on the left bank of the lower course of the Sava River in Serbia, there is an abandoned meander Special Nature Reserve, "Obedska bara", which represents a very important floodplain in this part of Europe. This area is characterized by an exceptional wealth of biodiversity with a significant presence of rare and endangered species of national and international importance. Hydrological conditions in the mentioned area were analyzed from the aspect of surface water movement in nature and conditions altered by human factors (after the construction of the road network, canals, etc.). The movement of surface water, i.e., the filling and emptying of the investigated area, parallel to the water level of the Sava River, is shown using a digital terrain model. Our simulation of the change in surface water level within the studied area included the display of underwater areas, both with the formation of a flood wave (i.e., increasing water level of the Sava) and with the outflow of water from the pond when the water level in the Sava was reduced in both scenarios (natural and conditions altered by human factors). GIS and terrain digitalization were used for geospatial and hydrological analyses and, based on this, maps that display endangered areas could be made. The obtained results show that the largest human impact was recorded at the water level of the Sava River 74 m above sea level. The aforementioned water regime changes were shown to negatively affect dominant vegetation, such as pedunculate oak and ash.
T2  - Water
T1  - Monitoring of the Surface Water Regime of the Sava River Alluvium in Serbia Using Geographic Information System (GIS) Techniques
IS  - 23
VL  - 15
DO  - 10.3390/w15234175
UR  - conv_1747
ER  - 

@article{
author = "Nikolić-Jokanović, Vesna and Jokanović, Dušan and Savić, Radovan and Vulević, Tijana and Anđelković, Aleksandar and Lazarević, Katarina and Kovačević, Ranka and Momirović, Natalija",
year = "2023",
abstract = "In the spacious inundation area on the left bank of the lower course of the Sava River in Serbia, there is an abandoned meander Special Nature Reserve, "Obedska bara", which represents a very important floodplain in this part of Europe. This area is characterized by an exceptional wealth of biodiversity with a significant presence of rare and endangered species of national and international importance. Hydrological conditions in the mentioned area were analyzed from the aspect of surface water movement in nature and conditions altered by human factors (after the construction of the road network, canals, etc.). The movement of surface water, i.e., the filling and emptying of the investigated area, parallel to the water level of the Sava River, is shown using a digital terrain model. Our simulation of the change in surface water level within the studied area included the display of underwater areas, both with the formation of a flood wave (i.e., increasing water level of the Sava) and with the outflow of water from the pond when the water level in the Sava was reduced in both scenarios (natural and conditions altered by human factors). GIS and terrain digitalization were used for geospatial and hydrological analyses and, based on this, maps that display endangered areas could be made. The obtained results show that the largest human impact was recorded at the water level of the Sava River 74 m above sea level. The aforementioned water regime changes were shown to negatively affect dominant vegetation, such as pedunculate oak and ash.",
journal = "Water",
title = "Monitoring of the Surface Water Regime of the Sava River Alluvium in Serbia Using Geographic Information System (GIS) Techniques",
number = "23",
volume = "15",
doi = "10.3390/w15234175",
url = "conv_1747"
}

Nikolić-Jokanović, V., Jokanović, D., Savić, R., Vulević, T., Anđelković, A., Lazarević, K., Kovačević, R.,& Momirović, N.. (2023). Monitoring of the Surface Water Regime of the Sava River Alluvium in Serbia Using Geographic Information System (GIS) Techniques. in Water, 15(23).
https://doi.org/10.3390/w15234175
conv_1747

Nikolić-Jokanović V, Jokanović D, Savić R, Vulević T, Anđelković A, Lazarević K, Kovačević R, Momirović N. Monitoring of the Surface Water Regime of the Sava River Alluvium in Serbia Using Geographic Information System (GIS) Techniques. in Water. 2023;15(23).
doi:10.3390/w15234175
conv_1747 .

Nikolić-Jokanović, Vesna, Jokanović, Dušan, Savić, Radovan, Vulević, Tijana, Anđelković, Aleksandar, Lazarević, Katarina, Kovačević, Ranka, Momirović, Natalija, "Monitoring of the Surface Water Regime of the Sava River Alluvium in Serbia Using Geographic Information System (GIS) Techniques" in Water, 15, no. 23 (2023),
https://doi.org/10.3390/w15234175 .,
conv_1747 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Stajić, Milica
AU  - Blagojević, Boško
AU  - Bezdan, Atila
AU  - Vranesević, Milica
AU  - Nikolić-Jokanović, Vesna
AU  - Baumgertel, Aleksandar
AU  - Bubalo Kovacić, Marina
AU  - Horvatinec, Jelena
AU  - Ondrasek, Gabrijel
PY  - 2022
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1281
AB  - Conserving clean and safe freshwater is a global challenge, with nitrogen (N) and phosphorus (P) as frequent limiting factors affecting water quality due to eutrophication. This paper provides a critical overview of the spatiotemporal variability in both nutrient concentrations and their total mass ratio (TN:TP) in the canal network of the Hydro system Danube-Tisza-Danube at 21 measuring locations monitored by the Environmental Protection Agency of the Republic of Serbia over a length of almost 1000 km, collected once a month during the last decade. A spatiotemporal variation in nutrient concentrations in the tested surface water samples was confirmed by correlations and cluster analyses. The highest TN concentrations were found in winter and early spring (non-vegetation season), and the highest TP concentrations in the middle of the year (vegetation season). The TN:TP mass ratio as an indicator of the eutrophication pointed out N and P co-limitation (TN:TP 8-24) in 64% of samples, N limitation (TN:TP  lt  8) was detected in 27% and P limitation (TN:TP  gt  24) in the remaining 9% of water samples. Such observations indicate slow-flowing, lowland water courses exposed to the effects of non-point and point contamination sources as nutrient runoff from the surrounding farmlands and/or urban and industrial zones, but further investigation is needed for clarification. These results are an important starting point for reducing N and P runoff loads and controlling source pollution to improve water quality and underpin recovery from eutrophication in the studied watershed.
T2  - Agriculture-Basel
T1  - Nitrogen and Phosphorus Concentrations and Their Ratios as Indicators of Water Quality and Eutrophication of the Hydro-System Danube-Tisza-Danube
IS  - 7
VL  - 12
DO  - 10.3390/agriculture12070935
UR  - conv_1650
ER  - 

@article{
author = "Savić, Radovan and Stajić, Milica and Blagojević, Boško and Bezdan, Atila and Vranesević, Milica and Nikolić-Jokanović, Vesna and Baumgertel, Aleksandar and Bubalo Kovacić, Marina and Horvatinec, Jelena and Ondrasek, Gabrijel",
year = "2022",
abstract = "Conserving clean and safe freshwater is a global challenge, with nitrogen (N) and phosphorus (P) as frequent limiting factors affecting water quality due to eutrophication. This paper provides a critical overview of the spatiotemporal variability in both nutrient concentrations and their total mass ratio (TN:TP) in the canal network of the Hydro system Danube-Tisza-Danube at 21 measuring locations monitored by the Environmental Protection Agency of the Republic of Serbia over a length of almost 1000 km, collected once a month during the last decade. A spatiotemporal variation in nutrient concentrations in the tested surface water samples was confirmed by correlations and cluster analyses. The highest TN concentrations were found in winter and early spring (non-vegetation season), and the highest TP concentrations in the middle of the year (vegetation season). The TN:TP mass ratio as an indicator of the eutrophication pointed out N and P co-limitation (TN:TP 8-24) in 64% of samples, N limitation (TN:TP  lt  8) was detected in 27% and P limitation (TN:TP  gt  24) in the remaining 9% of water samples. Such observations indicate slow-flowing, lowland water courses exposed to the effects of non-point and point contamination sources as nutrient runoff from the surrounding farmlands and/or urban and industrial zones, but further investigation is needed for clarification. These results are an important starting point for reducing N and P runoff loads and controlling source pollution to improve water quality and underpin recovery from eutrophication in the studied watershed.",
journal = "Agriculture-Basel",
title = "Nitrogen and Phosphorus Concentrations and Their Ratios as Indicators of Water Quality and Eutrophication of the Hydro-System Danube-Tisza-Danube",
number = "7",
volume = "12",
doi = "10.3390/agriculture12070935",
url = "conv_1650"
}

Savić, R., Stajić, M., Blagojević, B., Bezdan, A., Vranesević, M., Nikolić-Jokanović, V., Baumgertel, A., Bubalo Kovacić, M., Horvatinec, J.,& Ondrasek, G.. (2022). Nitrogen and Phosphorus Concentrations and Their Ratios as Indicators of Water Quality and Eutrophication of the Hydro-System Danube-Tisza-Danube. in Agriculture-Basel, 12(7).
https://doi.org/10.3390/agriculture12070935
conv_1650

Savić R, Stajić M, Blagojević B, Bezdan A, Vranesević M, Nikolić-Jokanović V, Baumgertel A, Bubalo Kovacić M, Horvatinec J, Ondrasek G. Nitrogen and Phosphorus Concentrations and Their Ratios as Indicators of Water Quality and Eutrophication of the Hydro-System Danube-Tisza-Danube. in Agriculture-Basel. 2022;12(7).
doi:10.3390/agriculture12070935
conv_1650 .

Savić, Radovan, Stajić, Milica, Blagojević, Boško, Bezdan, Atila, Vranesević, Milica, Nikolić-Jokanović, Vesna, Baumgertel, Aleksandar, Bubalo Kovacić, Marina, Horvatinec, Jelena, Ondrasek, Gabrijel, "Nitrogen and Phosphorus Concentrations and Their Ratios as Indicators of Water Quality and Eutrophication of the Hydro-System Danube-Tisza-Danube" in Agriculture-Basel, 12, no. 7 (2022),
https://doi.org/10.3390/agriculture12070935 .,
conv_1650 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Ondrasek, Gabrijel
AU  - Zemunac, Rados
AU  - Bubalo Kovacić, Marina
AU  - Kranjcec, Filip
AU  - Nikolić-Jokanović, Vesna
AU  - Bezdan, Atila
PY  - 2021
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1218
AB  - Sediment matrices, as integral organo-mineral parts of aquatic bodies, can effectively bind and accumulate nutrients and potentially hazardous substances from diffuse and/or point sources of contamination. In this study, we analysed the longitudinal distribution of macronutrients (total N and available P and K) and the mechanical composition of the sediments of Jegricka watercourse (a part of the multi-functional Danube-Tisa-Danube canal network) known for its exposure to anthropogenic loads. The results showed that the nutrient pollution index was mostly above 1.0 (in 76%, 86% and 93% of the analysed samples for K, N and P, respectively), and the mean values for N, P and K were 2.69, 1.92 and 1.24, respectively. The average content of all nutrients and the sand fraction were significantly higher, whereas the clay fraction was considerably lower, in the sediment samples than in the adjacent arable Chernozem soil used as a benchmark. The differences in the nutrient contents and mechanical properties in the sediments were measured longitudinally (at upstream vs. downstream stations) and assessed using correlation, cluster analysis, and principal component analysis. The results suggest that the nutrient sources in the sediments as well as their transport and loading mechanisms along Jegricka watercourse are diverse and complex, likely driven by a combination of untreated industrial/urban wastewater discharges, erosion and surface runoff from the surrounding agricultural land. As a majority of the analysed watercourse banks belong to areas of special ecological value, the obtained results may be useful: i) indicators for designing and implementation of sustainable land/water policies and measures for the protection and rehabilitation of these valuable ecosystems, ii) inputs for testing/calibrating the sediment transport models and iii) the basis for sediment management.
T2  - Science of the Total Environment
T1  - Longitudinal distribution of macronutrients in the sediments of Jegricka watercourse in Vojvodina, Serbia
VL  - 754
DO  - 10.1016/j.scitotenv.2020.142138
UR  - conv_1513
ER  - 

@article{
author = "Savić, Radovan and Ondrasek, Gabrijel and Zemunac, Rados and Bubalo Kovacić, Marina and Kranjcec, Filip and Nikolić-Jokanović, Vesna and Bezdan, Atila",
year = "2021",
abstract = "Sediment matrices, as integral organo-mineral parts of aquatic bodies, can effectively bind and accumulate nutrients and potentially hazardous substances from diffuse and/or point sources of contamination. In this study, we analysed the longitudinal distribution of macronutrients (total N and available P and K) and the mechanical composition of the sediments of Jegricka watercourse (a part of the multi-functional Danube-Tisa-Danube canal network) known for its exposure to anthropogenic loads. The results showed that the nutrient pollution index was mostly above 1.0 (in 76%, 86% and 93% of the analysed samples for K, N and P, respectively), and the mean values for N, P and K were 2.69, 1.92 and 1.24, respectively. The average content of all nutrients and the sand fraction were significantly higher, whereas the clay fraction was considerably lower, in the sediment samples than in the adjacent arable Chernozem soil used as a benchmark. The differences in the nutrient contents and mechanical properties in the sediments were measured longitudinally (at upstream vs. downstream stations) and assessed using correlation, cluster analysis, and principal component analysis. The results suggest that the nutrient sources in the sediments as well as their transport and loading mechanisms along Jegricka watercourse are diverse and complex, likely driven by a combination of untreated industrial/urban wastewater discharges, erosion and surface runoff from the surrounding agricultural land. As a majority of the analysed watercourse banks belong to areas of special ecological value, the obtained results may be useful: i) indicators for designing and implementation of sustainable land/water policies and measures for the protection and rehabilitation of these valuable ecosystems, ii) inputs for testing/calibrating the sediment transport models and iii) the basis for sediment management.",
journal = "Science of the Total Environment",
title = "Longitudinal distribution of macronutrients in the sediments of Jegricka watercourse in Vojvodina, Serbia",
volume = "754",
doi = "10.1016/j.scitotenv.2020.142138",
url = "conv_1513"
}

Savić, R., Ondrasek, G., Zemunac, R., Bubalo Kovacić, M., Kranjcec, F., Nikolić-Jokanović, V.,& Bezdan, A.. (2021). Longitudinal distribution of macronutrients in the sediments of Jegricka watercourse in Vojvodina, Serbia. in Science of the Total Environment, 754.
https://doi.org/10.1016/j.scitotenv.2020.142138
conv_1513

Savić R, Ondrasek G, Zemunac R, Bubalo Kovacić M, Kranjcec F, Nikolić-Jokanović V, Bezdan A. Longitudinal distribution of macronutrients in the sediments of Jegricka watercourse in Vojvodina, Serbia. in Science of the Total Environment. 2021;754.
doi:10.1016/j.scitotenv.2020.142138
conv_1513 .

Savić, Radovan, Ondrasek, Gabrijel, Zemunac, Rados, Bubalo Kovacić, Marina, Kranjcec, Filip, Nikolić-Jokanović, Vesna, Bezdan, Atila, "Longitudinal distribution of macronutrients in the sediments of Jegricka watercourse in Vojvodina, Serbia" in Science of the Total Environment, 754 (2021),
https://doi.org/10.1016/j.scitotenv.2020.142138 .,
conv_1513 .

TY  - JOUR
AU  - Nikolić-Jokanović, Vesna
AU  - Jokanović, Dušan
AU  - Savić, Radovan
AU  - Petrović, Jovana
AU  - Anđelković, Aleksandar
PY  - 2019
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1054
AB  - The paper deals with content of heavy metals in groundwater and surface water. Bearing on mind a huge problem related to pedunculate oak forests decline in the area of Ravni Srem, it is necessary to conduct an appropriate monitoring of water quality. One of the most important factors connected with water quality is concentration of heavy metals. As for groundwater, concentration of microelements was researched at four soil types: pseudogley, fluvi-soil, humogley and chernozem. Among all examined heavy metals, a special attention has been paid to following: Zn, Mn, Cd, Ni and Pb. Particularly toxic metals such as Ni, Pb and Cd are not recorded, apart from one soil type by groundwater sample. As for Zn and Mn concentrations, they area significantly over maximal allowed values, but it does not have some big influence on water quality.
PB  - Parlar Scientific Publications
T2  - Fresenius Environmental Bulletin
T1  - Water contamination in pedunculate oak higrophilous forests
EP  - 8437
IS  - 11
SP  - 8432
VL  - 28
UR  - conv_1978
ER  - 

@article{
author = "Nikolić-Jokanović, Vesna and Jokanović, Dušan and Savić, Radovan and Petrović, Jovana and Anđelković, Aleksandar",
year = "2019",
abstract = "The paper deals with content of heavy metals in groundwater and surface water. Bearing on mind a huge problem related to pedunculate oak forests decline in the area of Ravni Srem, it is necessary to conduct an appropriate monitoring of water quality. One of the most important factors connected with water quality is concentration of heavy metals. As for groundwater, concentration of microelements was researched at four soil types: pseudogley, fluvi-soil, humogley and chernozem. Among all examined heavy metals, a special attention has been paid to following: Zn, Mn, Cd, Ni and Pb. Particularly toxic metals such as Ni, Pb and Cd are not recorded, apart from one soil type by groundwater sample. As for Zn and Mn concentrations, they area significantly over maximal allowed values, but it does not have some big influence on water quality.",
publisher = "Parlar Scientific Publications",
journal = "Fresenius Environmental Bulletin",
title = "Water contamination in pedunculate oak higrophilous forests",
pages = "8437-8432",
number = "11",
volume = "28",
url = "conv_1978"
}

Nikolić-Jokanović, V., Jokanović, D., Savić, R., Petrović, J.,& Anđelković, A.. (2019). Water contamination in pedunculate oak higrophilous forests. in Fresenius Environmental Bulletin
Parlar Scientific Publications., 28(11), 8432-8437.
conv_1978

Nikolić-Jokanović V, Jokanović D, Savić R, Petrović J, Anđelković A. Water contamination in pedunculate oak higrophilous forests. in Fresenius Environmental Bulletin. 2019;28(11):8432-8437.
conv_1978 .

Nikolić-Jokanović, Vesna, Jokanović, Dušan, Savić, Radovan, Petrović, Jovana, Anđelković, Aleksandar, "Water contamination in pedunculate oak higrophilous forests" in Fresenius Environmental Bulletin, 28, no. 11 (2019):8432-8437,
conv_1978 .

TY  - JOUR
AU  - Nikolić-Jokanović, Vesna
AU  - Letić, Ljubomir
AU  - Savić, Radovan
AU  - Jokanović, Dušan
PY  - 2019
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1045
AB  - Pedunculate oak forests at the area of Gornji Srem are one of the most significant forest ecosystems from ecological and economical point of view. Survival and development of this higrophilous species mainly depends on available water quantity needed for basic living functions maintaining. Bearing on mind that embankment building at this area eliminated influence of flooding, and that precipitation quantity during vegetation season is not enough, as well, pedunculate oak clearly provides its water needs from groundwater. The research was conducted within Forest Administrations "Morovic" and "Visnjicevo" that cover area of about 25.000 ha belonging to Forest Holding "Sremska Mitrovica". The scope of the paper was to determine an average (reference) level of groundwater during vegetation season for the whole researched period (2010-2013). The next step was to establish, based on climate parameters, extreme years (the driest and the wettest). After that it was necessary to find a deviation of an average groundwater level in critical years compared to reference level. These deviations establish how much an average groundwater level goes up during wettest and how much it goes down during the driest year compared to reference level, respectively. Based on above mentioned deviations, maps by using Kriging model have been made. These maps serve for risk zones determining. Practical contribution of the paper is related to positioning of potentially endangered areas, that means adaptation of management principles to present hydrological site conditions.
PB  - Parlar Scientific Publications
T2  - Fresenius Environmental Bulletin
T1  - Influence of groundwater level fluctuations on decline of higrophilous pedunculate oak forest
EP  - 5996
IS  - 8
SP  - 5989
VL  - 28
UR  - conv_2016
ER  - 

@article{
author = "Nikolić-Jokanović, Vesna and Letić, Ljubomir and Savić, Radovan and Jokanović, Dušan",
year = "2019",
abstract = "Pedunculate oak forests at the area of Gornji Srem are one of the most significant forest ecosystems from ecological and economical point of view. Survival and development of this higrophilous species mainly depends on available water quantity needed for basic living functions maintaining. Bearing on mind that embankment building at this area eliminated influence of flooding, and that precipitation quantity during vegetation season is not enough, as well, pedunculate oak clearly provides its water needs from groundwater. The research was conducted within Forest Administrations "Morovic" and "Visnjicevo" that cover area of about 25.000 ha belonging to Forest Holding "Sremska Mitrovica". The scope of the paper was to determine an average (reference) level of groundwater during vegetation season for the whole researched period (2010-2013). The next step was to establish, based on climate parameters, extreme years (the driest and the wettest). After that it was necessary to find a deviation of an average groundwater level in critical years compared to reference level. These deviations establish how much an average groundwater level goes up during wettest and how much it goes down during the driest year compared to reference level, respectively. Based on above mentioned deviations, maps by using Kriging model have been made. These maps serve for risk zones determining. Practical contribution of the paper is related to positioning of potentially endangered areas, that means adaptation of management principles to present hydrological site conditions.",
publisher = "Parlar Scientific Publications",
journal = "Fresenius Environmental Bulletin",
title = "Influence of groundwater level fluctuations on decline of higrophilous pedunculate oak forest",
pages = "5996-5989",
number = "8",
volume = "28",
url = "conv_2016"
}

Nikolić-Jokanović, V., Letić, L., Savić, R.,& Jokanović, D.. (2019). Influence of groundwater level fluctuations on decline of higrophilous pedunculate oak forest. in Fresenius Environmental Bulletin
Parlar Scientific Publications., 28(8), 5989-5996.
conv_2016

Nikolić-Jokanović V, Letić L, Savić R, Jokanović D. Influence of groundwater level fluctuations on decline of higrophilous pedunculate oak forest. in Fresenius Environmental Bulletin. 2019;28(8):5989-5996.
conv_2016 .

Nikolić-Jokanović, Vesna, Letić, Ljubomir, Savić, Radovan, Jokanović, Dušan, "Influence of groundwater level fluctuations on decline of higrophilous pedunculate oak forest" in Fresenius Environmental Bulletin, 28, no. 8 (2019):5989-5996,
conv_2016 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Ondrasek, Gabrijel
AU  - Letić, Ljubomir
AU  - Nikolić, Vesna
AU  - Tanaskovik, Vjekoslav
PY  - 2017
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/821
AB  - The drainage channel network in Vojvodina, northern part of the Republic of Serbia, in total length of around 20,000 km, transfers excessive (under)ground waters from around 2.15 million ha of lowlands. Channels are mostly in direct connection with the surrounding arable agricultural land and are exposed to different run-off, leaching and/or wind erosion processes. Close to urban areas, some channel sections serve as recipients of unrefined sewage and industrial waste waters. Water flows and velocities, as well as the transportable capacity of fluvial materials (sediments) are relatively low. This, in combination with other natural and anthropogenic impacts, contributes to sediment generation in the drainage channel network. Based on around 100 sediment samples from 46 channels, concentrations of primary nutrients (N, P and K) were elaborated in this study. Detected concentrations of macronutrients in the channel sediments (e.g. N 1-1.2%, P 100-265 and K 100-380 mg 100 g(-1)) exceeded their content in surrounding arable land by a few fold. Also, significantly higher nutrient concentrations (in average by 50%) were detected in downstream (vs. upstream) channel sections. An excessive presence of observed elements in channel sediments, due to interactive processes between water and sediment material, can adversely influence the water quality and life conditions for channel biota and caused other negative environmental impacts such as eutrophication. These results clearly confirm that the processes of nutrient accumulation in channel sediments are greater than those in the surrounding, mostly intensively arable land areas. The erosion of unprotected agricultural areas and sediment transport as the most important pollution pathways from the drainage basin to channel network may be essential factors responsible for detected condition of nutrient accumulation.
T2  - International Journal of Sediment Research
T1  - Nutrients accumulation in drainage channel sediments
EP  - 185
IS  - 2
SP  - 180
VL  - 32
DO  - 10.1016/j.ijsrc.2016.07.005
UR  - conv_1278
ER  - 

@article{
author = "Savić, Radovan and Ondrasek, Gabrijel and Letić, Ljubomir and Nikolić, Vesna and Tanaskovik, Vjekoslav",
year = "2017",
abstract = "The drainage channel network in Vojvodina, northern part of the Republic of Serbia, in total length of around 20,000 km, transfers excessive (under)ground waters from around 2.15 million ha of lowlands. Channels are mostly in direct connection with the surrounding arable agricultural land and are exposed to different run-off, leaching and/or wind erosion processes. Close to urban areas, some channel sections serve as recipients of unrefined sewage and industrial waste waters. Water flows and velocities, as well as the transportable capacity of fluvial materials (sediments) are relatively low. This, in combination with other natural and anthropogenic impacts, contributes to sediment generation in the drainage channel network. Based on around 100 sediment samples from 46 channels, concentrations of primary nutrients (N, P and K) were elaborated in this study. Detected concentrations of macronutrients in the channel sediments (e.g. N 1-1.2%, P 100-265 and K 100-380 mg 100 g(-1)) exceeded their content in surrounding arable land by a few fold. Also, significantly higher nutrient concentrations (in average by 50%) were detected in downstream (vs. upstream) channel sections. An excessive presence of observed elements in channel sediments, due to interactive processes between water and sediment material, can adversely influence the water quality and life conditions for channel biota and caused other negative environmental impacts such as eutrophication. These results clearly confirm that the processes of nutrient accumulation in channel sediments are greater than those in the surrounding, mostly intensively arable land areas. The erosion of unprotected agricultural areas and sediment transport as the most important pollution pathways from the drainage basin to channel network may be essential factors responsible for detected condition of nutrient accumulation.",
journal = "International Journal of Sediment Research",
title = "Nutrients accumulation in drainage channel sediments",
pages = "185-180",
number = "2",
volume = "32",
doi = "10.1016/j.ijsrc.2016.07.005",
url = "conv_1278"
}

Savić, R., Ondrasek, G., Letić, L., Nikolić, V.,& Tanaskovik, V.. (2017). Nutrients accumulation in drainage channel sediments. in International Journal of Sediment Research, 32(2), 180-185.
https://doi.org/10.1016/j.ijsrc.2016.07.005
conv_1278

Savić R, Ondrasek G, Letić L, Nikolić V, Tanaskovik V. Nutrients accumulation in drainage channel sediments. in International Journal of Sediment Research. 2017;32(2):180-185.
doi:10.1016/j.ijsrc.2016.07.005
conv_1278 .

Savić, Radovan, Ondrasek, Gabrijel, Letić, Ljubomir, Nikolić, Vesna, Tanaskovik, Vjekoslav, "Nutrients accumulation in drainage channel sediments" in International Journal of Sediment Research, 32, no. 2 (2017):180-185,
https://doi.org/10.1016/j.ijsrc.2016.07.005 .,
conv_1278 .

TY  - JOUR
AU  - Letić, Ljubomir
AU  - Nikolić, Vesna
AU  - Lazarević, Ivica
AU  - Savić, Radovan
PY  - 2015
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/712
AB  - The data on forests shown in this paper which are general useful functions
   determine the main way of managing, because these forests are marked as water
   protective and especially significant for the water supply of the Vrnjačka
   Banja area from 1985. These are forests of beech and beech mixed with fir of
   the highest quality located in the river Zagrža basin on mountain Goč and
   they represent more than 85 % of the basin and provide the hydrological and
   water protective functions at the highest level. For that reason, they have a
   special protective status. In the river Zagrža basin, there is the management
   unit
PB  - Univerzitet u Beogradu - Šumarski fakultet, Beograd
T2  - Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu
T1  - The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function
EP  - 84
IS  - suppl.
SP  - 75
VL  - 2015
DO  - 10.2298/GSF15S1075L
UR  - conv_2349
ER  - 

@article{
author = "Letić, Ljubomir and Nikolić, Vesna and Lazarević, Ivica and Savić, Radovan",
year = "2015",
abstract = "The data on forests shown in this paper which are general useful functions
   determine the main way of managing, because these forests are marked as water
   protective and especially significant for the water supply of the Vrnjačka
   Banja area from 1985. These are forests of beech and beech mixed with fir of
   the highest quality located in the river Zagrža basin on mountain Goč and
   they represent more than 85 % of the basin and provide the hydrological and
   water protective functions at the highest level. For that reason, they have a
   special protective status. In the river Zagrža basin, there is the management
   unit",
publisher = "Univerzitet u Beogradu - Šumarski fakultet, Beograd",
journal = "Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu",
title = "The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function",
pages = "84-75",
number = "suppl.",
volume = "2015",
doi = "10.2298/GSF15S1075L",
url = "conv_2349"
}

Letić, L., Nikolić, V., Lazarević, I.,& Savić, R.. (2015). The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function. in Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu
Univerzitet u Beogradu - Šumarski fakultet, Beograd., 2015(suppl.), 75-84.
https://doi.org/10.2298/GSF15S1075L
conv_2349

Letić L, Nikolić V, Lazarević I, Savić R. The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function. in Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu. 2015;2015(suppl.):75-84.
doi:10.2298/GSF15S1075L
conv_2349 .

Letić, Ljubomir, Nikolić, Vesna, Lazarević, Ivica, Savić, Radovan, "The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function" in Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2015, no. suppl. (2015):75-84,
https://doi.org/10.2298/GSF15S1075L .,
conv_2349 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Josimov-Dunđerski, Jasmina
AU  - Belić, Anđelka
AU  - Ondrašek, Gabrijel
AU  - Letić, Ljubomir
AU  - Nikolić, Vesna
PY  - 2015
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/684
AB  - U radu se analizira stanje kvaliteta vode i sedimenata kanalisanog vodotoka Tatarnica. Ovaj vodotok predstavlja i glavni kanal jednog od sistema za odvodnjavanje, koji je lociran dvadesetak kilometara zapadno od Novog Sada (Vojvodina, Srbija). Kvalitet vode i sedimenta ovog vodotoka, pored ostalog, značajan je zbog toga što se njegove vode koriste za navodnjavanje povrtarskih kultura na okolnim obradivim površinama ali i zbog toga što se uliva u Dunav u zoni akvatorije posebne ekološke vrednosti, parka prirode Begečka jama. Na osnovu mesečnog uzorkovanja vode i analize relevantnih indikatora kvaliteta, tokom perioda 2006-2012. godine, prikazani su rezultati sedmogodišnjeg monitoringa kvaliteta vode i sedimenata. Prema većini relevantnih parametara kvaliteta, u najvećem broju uzoraka, voda ima dobar ekološki potencijal. Međutim, konstatovana je i povremena pojava vode neodgovarajućeg kvaliteta, najčešće kada je u pitanju organsko zagađenje iskazano preko povećanih vrednosti biološke i hemijske potrošnje kiseonika (BPK5 i HPK) kod oko 35% uzoraka. Odstupanja od zahtevanog kvaliteta vode konstatovana su i kod ostalih parametara u oko 10-25% uzoraka. Sastav sedimenata, po svim razmatranim parametrima, uglavnom je u granicama koje nemaju negativne posledice na životnu sredinu u kanalu i njegovom okruženju.
AB  - Water quality conditions of the Tatarnica canalized watercourse are considered in this paper. Tatarnica is the main canal of one of the drainage systems, which is situated about twenty kilometers to the West of Novi Sad (Vojvodina, Serbia). The quality of water and sediments in this canal is important because its water is used for irrigation of vegetable crops on the surrounding arable lands. In addition, its confluence into the Danube is near Begecka jama, which is a nature park with special ecological value. Based on the monthly water sampling and the analysis of relevant quality indicators during the research period, from year 2006 to 2012, the results of seven-year-long water and sediments quality monitoring are presented. According to the most relevant water quality parameters, water has a good ecological potential in most samples. However, occasional occurrence of inadequate water quality was noted, usually due to organic pollution, manifested as increased values of Biological and chemical Oxygen Demand (BOD5 and COD) in 35% samples. Exceptions from the required water quality were determined for the other parameters in about 10-25% of the samples. Sediment properties, according to all analyzed parameters, are generally within limits which do not have negative influences on the canal environment and its surroundings.
T2  - Agroznanje
T1  - Monitoring kvaliteta vode i sedimenta manjih vodotoka u Vojvodini - primer vodotoka Tatarnica
T1  - Water and Sediment Quality Monitoring of Smaller Watercourses in Vojvodina - Case Study of Tatarnica
EP  - 192
IS  - 2
SP  - 181
VL  - 16
DO  - 10.7251/AGRSR1502181S
UR  - conv_793
ER  - 

@article{
author = "Savić, Radovan and Josimov-Dunđerski, Jasmina and Belić, Anđelka and Ondrašek, Gabrijel and Letić, Ljubomir and Nikolić, Vesna",
year = "2015",
abstract = "U radu se analizira stanje kvaliteta vode i sedimenata kanalisanog vodotoka Tatarnica. Ovaj vodotok predstavlja i glavni kanal jednog od sistema za odvodnjavanje, koji je lociran dvadesetak kilometara zapadno od Novog Sada (Vojvodina, Srbija). Kvalitet vode i sedimenta ovog vodotoka, pored ostalog, značajan je zbog toga što se njegove vode koriste za navodnjavanje povrtarskih kultura na okolnim obradivim površinama ali i zbog toga što se uliva u Dunav u zoni akvatorije posebne ekološke vrednosti, parka prirode Begečka jama. Na osnovu mesečnog uzorkovanja vode i analize relevantnih indikatora kvaliteta, tokom perioda 2006-2012. godine, prikazani su rezultati sedmogodišnjeg monitoringa kvaliteta vode i sedimenata. Prema većini relevantnih parametara kvaliteta, u najvećem broju uzoraka, voda ima dobar ekološki potencijal. Međutim, konstatovana je i povremena pojava vode neodgovarajućeg kvaliteta, najčešće kada je u pitanju organsko zagađenje iskazano preko povećanih vrednosti biološke i hemijske potrošnje kiseonika (BPK5 i HPK) kod oko 35% uzoraka. Odstupanja od zahtevanog kvaliteta vode konstatovana su i kod ostalih parametara u oko 10-25% uzoraka. Sastav sedimenata, po svim razmatranim parametrima, uglavnom je u granicama koje nemaju negativne posledice na životnu sredinu u kanalu i njegovom okruženju., Water quality conditions of the Tatarnica canalized watercourse are considered in this paper. Tatarnica is the main canal of one of the drainage systems, which is situated about twenty kilometers to the West of Novi Sad (Vojvodina, Serbia). The quality of water and sediments in this canal is important because its water is used for irrigation of vegetable crops on the surrounding arable lands. In addition, its confluence into the Danube is near Begecka jama, which is a nature park with special ecological value. Based on the monthly water sampling and the analysis of relevant quality indicators during the research period, from year 2006 to 2012, the results of seven-year-long water and sediments quality monitoring are presented. According to the most relevant water quality parameters, water has a good ecological potential in most samples. However, occasional occurrence of inadequate water quality was noted, usually due to organic pollution, manifested as increased values of Biological and chemical Oxygen Demand (BOD5 and COD) in 35% samples. Exceptions from the required water quality were determined for the other parameters in about 10-25% of the samples. Sediment properties, according to all analyzed parameters, are generally within limits which do not have negative influences on the canal environment and its surroundings.",
journal = "Agroznanje",
title = "Monitoring kvaliteta vode i sedimenta manjih vodotoka u Vojvodini - primer vodotoka Tatarnica, Water and Sediment Quality Monitoring of Smaller Watercourses in Vojvodina - Case Study of Tatarnica",
pages = "192-181",
number = "2",
volume = "16",
doi = "10.7251/AGRSR1502181S",
url = "conv_793"
}

Savić, R., Josimov-Dunđerski, J., Belić, A., Ondrašek, G., Letić, L.,& Nikolić, V.. (2015). Monitoring kvaliteta vode i sedimenta manjih vodotoka u Vojvodini - primer vodotoka Tatarnica. in Agroznanje, 16(2), 181-192.
https://doi.org/10.7251/AGRSR1502181S
conv_793

Savić R, Josimov-Dunđerski J, Belić A, Ondrašek G, Letić L, Nikolić V. Monitoring kvaliteta vode i sedimenta manjih vodotoka u Vojvodini - primer vodotoka Tatarnica. in Agroznanje. 2015;16(2):181-192.
doi:10.7251/AGRSR1502181S
conv_793 .

Savić, Radovan, Josimov-Dunđerski, Jasmina, Belić, Anđelka, Ondrašek, Gabrijel, Letić, Ljubomir, Nikolić, Vesna, "Monitoring kvaliteta vode i sedimenta manjih vodotoka u Vojvodini - primer vodotoka Tatarnica" in Agroznanje, 16, no. 2 (2015):181-192,
https://doi.org/10.7251/AGRSR1502181S .,
conv_793 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Bezdan, Atila
AU  - Josimov-Dunđerski, Jasmina
AU  - Letić, Ljubomir
AU  - Nikolić, Vesna
AU  - Ondrašek, Gabrijel
PY  - 2014
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/625
AB  - Na osnovu mesečnog monitoringa relevantnih indikatora kvaliteta površinskih voda, kod vodotoka Krivaja tokom analiziranog perioda 2006-2011. godine konstatovan je nezadovoljavajući kvalitet i učestala pojava najlošijih klasa ekološki statusa. Takvo stanje u znatnoj meri ograničava ili onemogućava upotrebljivost voda Krivaje u ma koje svrhe. Na osnovu podataka sa tri merne stanice, ustanovljena je longitudinalna distribucija analiziranih parametara i degradacija kvaliteta vode duž toka koja je prouzrokovana uticajem različitih zagađivača. Zaštita, revitalizacija i racionalno upravljanje vodama Krivaje, kao značajnog vodnog resursa po-dručja kroz koje protiče, učinili bi da se ovaj vodotok izbriše sa liste "crnih tačaka" kvaliteta površinskih voda. Prevazilaženjem uočenog problema, Krivaja bi se osim kao recipijent otpadnih voda mogla koristiti bez opasnosti od negativnih efekata i u druge svrhe, a njene vode i obale ponovo učiniti privlačnim i upotrebljivim, između ostalog, i za navod-njavanje okolnih obradivih površina plodne vojvođanske ravnice i proizvodnju zdravstveno bezbedne hrane.
AB  - Based on the monthly monitoring of the relevant indicators of surface water quality during the period of analysis, from year 2006 to 2011, an unsatisfactory ecological status and frequent occurrence of the worst quality class was noted in the Krivaja watercourse. This situation considerably limits or prevents the use of water from this river for any purpose. Also, based on the data from the three measuring stations, the longitudinal distribution of the analyzed parameters and degradation of water quality along the Krivaja watercourse was found. Protection, revitalization and rational management of Krivaja waters as an important water resource of the areas it flows through, would make this watercourse deleted from the surface water quality "black spots" list. As soon as the identified problems have been overcome, apart from being a wastewater recipient, the Krivaja can be used for other purposes without the risk of adverse effects. Furthermore, its waters and coastline may again be attractive and usable (for the irrigation of the surrounding farmland and safe food production).
T2  - Agroznanje
T1  - Degradacija kvaliteta vode vodotoka Krivaja
T1  - Water quality degradation of Krivaja watercourse
EP  - 172
IS  - 2
SP  - 159
VL  - 15
DO  - 10.7251/AGRSR1402159S
UR  - conv_792
ER  - 

@article{
author = "Savić, Radovan and Bezdan, Atila and Josimov-Dunđerski, Jasmina and Letić, Ljubomir and Nikolić, Vesna and Ondrašek, Gabrijel",
year = "2014",
abstract = "Na osnovu mesečnog monitoringa relevantnih indikatora kvaliteta površinskih voda, kod vodotoka Krivaja tokom analiziranog perioda 2006-2011. godine konstatovan je nezadovoljavajući kvalitet i učestala pojava najlošijih klasa ekološki statusa. Takvo stanje u znatnoj meri ograničava ili onemogućava upotrebljivost voda Krivaje u ma koje svrhe. Na osnovu podataka sa tri merne stanice, ustanovljena je longitudinalna distribucija analiziranih parametara i degradacija kvaliteta vode duž toka koja je prouzrokovana uticajem različitih zagađivača. Zaštita, revitalizacija i racionalno upravljanje vodama Krivaje, kao značajnog vodnog resursa po-dručja kroz koje protiče, učinili bi da se ovaj vodotok izbriše sa liste "crnih tačaka" kvaliteta površinskih voda. Prevazilaženjem uočenog problema, Krivaja bi se osim kao recipijent otpadnih voda mogla koristiti bez opasnosti od negativnih efekata i u druge svrhe, a njene vode i obale ponovo učiniti privlačnim i upotrebljivim, između ostalog, i za navod-njavanje okolnih obradivih površina plodne vojvođanske ravnice i proizvodnju zdravstveno bezbedne hrane., Based on the monthly monitoring of the relevant indicators of surface water quality during the period of analysis, from year 2006 to 2011, an unsatisfactory ecological status and frequent occurrence of the worst quality class was noted in the Krivaja watercourse. This situation considerably limits or prevents the use of water from this river for any purpose. Also, based on the data from the three measuring stations, the longitudinal distribution of the analyzed parameters and degradation of water quality along the Krivaja watercourse was found. Protection, revitalization and rational management of Krivaja waters as an important water resource of the areas it flows through, would make this watercourse deleted from the surface water quality "black spots" list. As soon as the identified problems have been overcome, apart from being a wastewater recipient, the Krivaja can be used for other purposes without the risk of adverse effects. Furthermore, its waters and coastline may again be attractive and usable (for the irrigation of the surrounding farmland and safe food production).",
journal = "Agroznanje",
title = "Degradacija kvaliteta vode vodotoka Krivaja, Water quality degradation of Krivaja watercourse",
pages = "172-159",
number = "2",
volume = "15",
doi = "10.7251/AGRSR1402159S",
url = "conv_792"
}

Savić, R., Bezdan, A., Josimov-Dunđerski, J., Letić, L., Nikolić, V.,& Ondrašek, G.. (2014). Degradacija kvaliteta vode vodotoka Krivaja. in Agroznanje, 15(2), 159-172.
https://doi.org/10.7251/AGRSR1402159S
conv_792

Savić R, Bezdan A, Josimov-Dunđerski J, Letić L, Nikolić V, Ondrašek G. Degradacija kvaliteta vode vodotoka Krivaja. in Agroznanje. 2014;15(2):159-172.
doi:10.7251/AGRSR1402159S
conv_792 .

Savić, Radovan, Bezdan, Atila, Josimov-Dunđerski, Jasmina, Letić, Ljubomir, Nikolić, Vesna, Ondrašek, Gabrijel, "Degradacija kvaliteta vode vodotoka Krivaja" in Agroznanje, 15, no. 2 (2014):159-172,
https://doi.org/10.7251/AGRSR1402159S .,
conv_792 .

TY  - JOUR
AU  - Ristić, Ratko
AU  - Radić, Boris
AU  - Miljanović, Veliša
AU  - Trivan, Goran
AU  - Ljujić, Milanko
AU  - Letić, Ljubomir
AU  - Savić, Radovan
PY  - 2013
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/515
AB  - Urbanized areas constantly need new surfaces for building of commercial, residental or infrastructure facilities. Belgrade, the capital of Serbia and a big regional center, with 2,000,000 inhabitants, covers a territory of 3,500 km2. Decreasing of surfaces under forest vegetation, urbanization and inadequate agricultural measures have caused intensive erosion and more frequent torrential floods. Belgrade authorities have defined a new strategy for land use and urban planning in order to decrease the risk from destructive erosion processes and torrential floods and help the establishment of new recreational areas, preservation of biodiversity and mitigation of the 'heat island' effect. The strategy is based on the restoration of 'blue-green' corridors (residuals of open streams and fragments of forest vegetation). The restoration of 'blue-green' corridors is presented at the experimental watersheds of the Kaljavi and Jelezovac streams. The restoration works will be performed in the 2014-2020 period, on the basis of erosion and stream control demands, as well as environmental and social requests, including biological, soil-bioengineering activities and certain administrative measures. The forest surfaces will be increased by 1.38 km2 (18.11% of the total area). The restoration of 'blue-green' corridors in the experimental watersheds will decrease the values of maximal discharges (p = 1%) by about 50%, and the volumes of direct runoff by about 40%. Erosive material production and transport will be decreased by about 44% in the Kaljavi stream watershed, and 37% in the Jelezovac stream watershed. Ten kilometers of sealed walking and cycling paths, 1.7 km of unsealed forest paths, six open gyms and seven rest areas will strengthen the potential of this area for sports and recreation. The restoration will help the protection and controlled usage of the natural and cultural values in the area, and the connection of 'blue-green' corridors at different spatial levels. The final goal is the creation of a network of 'blue-green' corridors in the territory of Belgrade city, which provides both effective erosion and stream control and environmental and social services.
PB  - Institut za arhitekturu i urbanizam Srbije, Beograd
T2  - Spatium
T1  - 'Blue-green' corridors as a tool for mitigation of natural hazards and restoration of urbanized areas: A case study of Belgrade city
EP  - 22
IS  - 30
SP  - 18
DO  - 10.2298/SPAT1330018R
UR  - conv_2138
ER  - 

@article{
author = "Ristić, Ratko and Radić, Boris and Miljanović, Veliša and Trivan, Goran and Ljujić, Milanko and Letić, Ljubomir and Savić, Radovan",
year = "2013",
abstract = "Urbanized areas constantly need new surfaces for building of commercial, residental or infrastructure facilities. Belgrade, the capital of Serbia and a big regional center, with 2,000,000 inhabitants, covers a territory of 3,500 km2. Decreasing of surfaces under forest vegetation, urbanization and inadequate agricultural measures have caused intensive erosion and more frequent torrential floods. Belgrade authorities have defined a new strategy for land use and urban planning in order to decrease the risk from destructive erosion processes and torrential floods and help the establishment of new recreational areas, preservation of biodiversity and mitigation of the 'heat island' effect. The strategy is based on the restoration of 'blue-green' corridors (residuals of open streams and fragments of forest vegetation). The restoration of 'blue-green' corridors is presented at the experimental watersheds of the Kaljavi and Jelezovac streams. The restoration works will be performed in the 2014-2020 period, on the basis of erosion and stream control demands, as well as environmental and social requests, including biological, soil-bioengineering activities and certain administrative measures. The forest surfaces will be increased by 1.38 km2 (18.11% of the total area). The restoration of 'blue-green' corridors in the experimental watersheds will decrease the values of maximal discharges (p = 1%) by about 50%, and the volumes of direct runoff by about 40%. Erosive material production and transport will be decreased by about 44% in the Kaljavi stream watershed, and 37% in the Jelezovac stream watershed. Ten kilometers of sealed walking and cycling paths, 1.7 km of unsealed forest paths, six open gyms and seven rest areas will strengthen the potential of this area for sports and recreation. The restoration will help the protection and controlled usage of the natural and cultural values in the area, and the connection of 'blue-green' corridors at different spatial levels. The final goal is the creation of a network of 'blue-green' corridors in the territory of Belgrade city, which provides both effective erosion and stream control and environmental and social services.",
publisher = "Institut za arhitekturu i urbanizam Srbije, Beograd",
journal = "Spatium",
title = "'Blue-green' corridors as a tool for mitigation of natural hazards and restoration of urbanized areas: A case study of Belgrade city",
pages = "22-18",
number = "30",
doi = "10.2298/SPAT1330018R",
url = "conv_2138"
}

Ristić, R., Radić, B., Miljanović, V., Trivan, G., Ljujić, M., Letić, L.,& Savić, R.. (2013). 'Blue-green' corridors as a tool for mitigation of natural hazards and restoration of urbanized areas: A case study of Belgrade city. in Spatium
Institut za arhitekturu i urbanizam Srbije, Beograd.(30), 18-22.
https://doi.org/10.2298/SPAT1330018R
conv_2138

Ristić R, Radić B, Miljanović V, Trivan G, Ljujić M, Letić L, Savić R. 'Blue-green' corridors as a tool for mitigation of natural hazards and restoration of urbanized areas: A case study of Belgrade city. in Spatium. 2013;(30):18-22.
doi:10.2298/SPAT1330018R
conv_2138 .

Ristić, Ratko, Radić, Boris, Miljanović, Veliša, Trivan, Goran, Ljujić, Milanko, Letić, Ljubomir, Savić, Radovan, "'Blue-green' corridors as a tool for mitigation of natural hazards and restoration of urbanized areas: A case study of Belgrade city" in Spatium, no. 30 (2013):18-22,
https://doi.org/10.2298/SPAT1330018R .,
conv_2138 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Ondrasek, Gabrijel
AU  - Bezdan, Atila
AU  - Letić, Ljubomir
AU  - Nikolić, Vesna
PY  - 2013
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/523
AB  - The study analyses fluvial deposition (sedimentation) in groyne fields constructed on the meandering section of the Danube River from Novi Sad (Republic of Serbia) to the border of the Republic of Croatia, the Republic of Serbia and Hungary (1255 divided by 1433 km stations). By processing satellite images (Google Earth) of the studied area, groyne systems were detected at 25 locations and their characteristics and sedimentation by the river deposited materials were elaborated on more than 100 groyne fields. Results show that on the observed groyne fields and systems, the new areas, formed by fluvial deposition, are overspread on totally over 5,5 million m(2) (cca 3,13 million m(2) on the left and 2,38 million m(2) on the right riverside). Distribution of groyne fields more affected by fluvial sediments was substantially greater on the left (similar to 60 %) than on the right (similar to 40 %) Danube riverside. On predominant portion of the groyne systems (15/25) fluvial sedimentation occupied 40 divided by 80 % of the total groyne field area.
PB  - Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
T2  - Tehnički vjesnik
T1  - Fluvial deposition in groyne fields of the middle course of the Danube river
EP  - 983
IS  - 6
SP  - 979
VL  - 20
UR  - conv_2168
ER  - 

@article{
author = "Savić, Radovan and Ondrasek, Gabrijel and Bezdan, Atila and Letić, Ljubomir and Nikolić, Vesna",
year = "2013",
abstract = "The study analyses fluvial deposition (sedimentation) in groyne fields constructed on the meandering section of the Danube River from Novi Sad (Republic of Serbia) to the border of the Republic of Croatia, the Republic of Serbia and Hungary (1255 divided by 1433 km stations). By processing satellite images (Google Earth) of the studied area, groyne systems were detected at 25 locations and their characteristics and sedimentation by the river deposited materials were elaborated on more than 100 groyne fields. Results show that on the observed groyne fields and systems, the new areas, formed by fluvial deposition, are overspread on totally over 5,5 million m(2) (cca 3,13 million m(2) on the left and 2,38 million m(2) on the right riverside). Distribution of groyne fields more affected by fluvial sediments was substantially greater on the left (similar to 60 %) than on the right (similar to 40 %) Danube riverside. On predominant portion of the groyne systems (15/25) fluvial sedimentation occupied 40 divided by 80 % of the total groyne field area.",
publisher = "Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek",
journal = "Tehnički vjesnik",
title = "Fluvial deposition in groyne fields of the middle course of the Danube river",
pages = "983-979",
number = "6",
volume = "20",
url = "conv_2168"
}

Savić, R., Ondrasek, G., Bezdan, A., Letić, L.,& Nikolić, V.. (2013). Fluvial deposition in groyne fields of the middle course of the Danube river. in Tehnički vjesnik
Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek., 20(6), 979-983.
conv_2168

Savić R, Ondrasek G, Bezdan A, Letić L, Nikolić V. Fluvial deposition in groyne fields of the middle course of the Danube river. in Tehnički vjesnik. 2013;20(6):979-983.
conv_2168 .

Savić, Radovan, Ondrasek, Gabrijel, Bezdan, Atila, Letić, Ljubomir, Nikolić, Vesna, "Fluvial deposition in groyne fields of the middle course of the Danube river" in Tehnički vjesnik, 20, no. 6 (2013):979-983,
conv_2168 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Letić, Ljubomir
AU  - Benka, Pavel
AU  - Ondrašek, Gabrijel
AU  - Nikolić, Vesna
PY  - 2012
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/438
AB  - Eolska erozija predstavlja značajan vid degradacije obradivih poljoprivrednih zemljišta. Prirodni i antropogeni faktori na području Vojvodine pogoduju nastanku i razvoju intenzivnih vetroerozionih procesa. Među brojnim uzročnim faktorima složenog procesa eolske erozije (reljef, klima, zemljište, vegetacija, način korišćenja zemljišta, organizacija zemljišne teritorije itd.) u ovom radu se analizira klima, kao agresivna komponenta erozije. Prvenstveno vetar, a zatim padavine i temperature, odnosno njihova nepovoljna koincidencija, direktno ili indirektno utiču na potencijalnu opasnost od pojave i razvoja eolske erozije. Stvarna realizacija procesa, tj. produkcija eolskog nanosa, zavisi i od svih ostalih relevantnih činilaca. Na osnovu definisanog klimatskog faktora izdvojena su područja i periodi sa različitim stepenom potencijalne ugroženosti i opasnosti od nastanka eolske erozije. Konstatovano je da prema klimatskom faktoru područje Banata može da se smatra 3 do 4 puta ugroženije od ostalih delova Vojvodine. Najintenzivniji erozioni procesi mogući su tokom ranog proleća (april) i jeseni (oktobar), posebno u izrazito sušnim godinama.
AB  - Wind erosion represents a significant type of degradation of arable agricultural soil. Natural and anthropogenic factors in Vojvodina are favourable for the occurance and development of intensive wind erosive processes. Along with the numerous causal factors of a complex process of wind erosion (relief, climate, soil, vegetation, manner of land usage, land consolidation, etc.), the accent in this paper is especially on climate as an aggressive component of wind erosion processes. Primarily wind, and then precipitation and temperatures, i.e. unfavourable coincidence of the aforementioned climatic elements, directly or indirectly affects the potential occurence and development of wind erosion. Actual realization of the process, that is, forming of wind deposits, depends on all the other relevant factors. Based on unfavourable coincidence of climatic factors, one can distinguish areas and periods when the conditions of potential occurrence of wind erosion are at its most aggressive. It has been determined that, according to the climatic factors, the area of Banat is more endangered than other areas in Vojvodina (3 to 4 times more). The most intensive processes are possible in early spring (April) and in autumn (October), especially in extremely dry years.
T2  - Agroznanje
T1  - Prostorna i vremenska raspodela potencijalne ugroženosti područja Vojvodine procesima eolske erozije
T1  - Spatial and temporal distribution of potential vulnerability to wind erosion processes in Vojvodina
EP  - 198
IS  - 2
SP  - 191
VL  - 13
DO  - 10.7251/AGRSR1202191S
UR  - conv_791
ER  - 

@article{
author = "Savić, Radovan and Letić, Ljubomir and Benka, Pavel and Ondrašek, Gabrijel and Nikolić, Vesna",
year = "2012",
abstract = "Eolska erozija predstavlja značajan vid degradacije obradivih poljoprivrednih zemljišta. Prirodni i antropogeni faktori na području Vojvodine pogoduju nastanku i razvoju intenzivnih vetroerozionih procesa. Među brojnim uzročnim faktorima složenog procesa eolske erozije (reljef, klima, zemljište, vegetacija, način korišćenja zemljišta, organizacija zemljišne teritorije itd.) u ovom radu se analizira klima, kao agresivna komponenta erozije. Prvenstveno vetar, a zatim padavine i temperature, odnosno njihova nepovoljna koincidencija, direktno ili indirektno utiču na potencijalnu opasnost od pojave i razvoja eolske erozije. Stvarna realizacija procesa, tj. produkcija eolskog nanosa, zavisi i od svih ostalih relevantnih činilaca. Na osnovu definisanog klimatskog faktora izdvojena su područja i periodi sa različitim stepenom potencijalne ugroženosti i opasnosti od nastanka eolske erozije. Konstatovano je da prema klimatskom faktoru područje Banata može da se smatra 3 do 4 puta ugroženije od ostalih delova Vojvodine. Najintenzivniji erozioni procesi mogući su tokom ranog proleća (april) i jeseni (oktobar), posebno u izrazito sušnim godinama., Wind erosion represents a significant type of degradation of arable agricultural soil. Natural and anthropogenic factors in Vojvodina are favourable for the occurance and development of intensive wind erosive processes. Along with the numerous causal factors of a complex process of wind erosion (relief, climate, soil, vegetation, manner of land usage, land consolidation, etc.), the accent in this paper is especially on climate as an aggressive component of wind erosion processes. Primarily wind, and then precipitation and temperatures, i.e. unfavourable coincidence of the aforementioned climatic elements, directly or indirectly affects the potential occurence and development of wind erosion. Actual realization of the process, that is, forming of wind deposits, depends on all the other relevant factors. Based on unfavourable coincidence of climatic factors, one can distinguish areas and periods when the conditions of potential occurrence of wind erosion are at its most aggressive. It has been determined that, according to the climatic factors, the area of Banat is more endangered than other areas in Vojvodina (3 to 4 times more). The most intensive processes are possible in early spring (April) and in autumn (October), especially in extremely dry years.",
journal = "Agroznanje",
title = "Prostorna i vremenska raspodela potencijalne ugroženosti područja Vojvodine procesima eolske erozije, Spatial and temporal distribution of potential vulnerability to wind erosion processes in Vojvodina",
pages = "198-191",
number = "2",
volume = "13",
doi = "10.7251/AGRSR1202191S",
url = "conv_791"
}

Savić, R., Letić, L., Benka, P., Ondrašek, G.,& Nikolić, V.. (2012). Prostorna i vremenska raspodela potencijalne ugroženosti područja Vojvodine procesima eolske erozije. in Agroznanje, 13(2), 191-198.
https://doi.org/10.7251/AGRSR1202191S
conv_791

Savić R, Letić L, Benka P, Ondrašek G, Nikolić V. Prostorna i vremenska raspodela potencijalne ugroženosti područja Vojvodine procesima eolske erozije. in Agroznanje. 2012;13(2):191-198.
doi:10.7251/AGRSR1202191S
conv_791 .

Savić, Radovan, Letić, Ljubomir, Benka, Pavel, Ondrašek, Gabrijel, Nikolić, Vesna, "Prostorna i vremenska raspodela potencijalne ugroženosti područja Vojvodine procesima eolske erozije" in Agroznanje, 13, no. 2 (2012):191-198,
https://doi.org/10.7251/AGRSR1202191S .,
conv_791 .

TY  - JOUR
AU  - Savić, Radovan
AU  - Letić, Ljubomir
AU  - Ondrašek, Gabrijel
AU  - Bezdan, Atila
AU  - Nikolić, Vesna
PY  - 2011
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/359
AB  - Preko 75% pretežno ravničarskog područja Vojvodine pokriveno je obradivim poljoprivrednim zemljištem. Znatnim delom godine ove površine su bez vegetacionog pokrivača te su izložene različitim vidovima vodne i eolske erozije. Erozioni procesi dovode do odnošenja najfinijeg površinskog sloja zemljišta a sa njim i unetih agrohemijskih sredstava i opadanja plodnosti. Ovo se pre svega odnosi na sadržaj fosfora čija su jedinjenja snažno vezana za čvrstu fazu zemljišta. Jedan deo čestica pokrenutog nanosa dospeva i do relativno guste mreže melioracionih kanala i tu se privremeno ili trajno taloži. Na osnovu analize preko 80 uzoraka, razmatran je sadržaja fosfora u kanalskim sedimentima. Ustanovljene koncentracije ovog elementa u sedimentima višestruko su iznad njihovog sadržaja u okolnom obradivom zemljištu. Povećanje koncentracije fosfora u sedimentima može se uočiti i duž pojedinih analiziranih kanalskih deonica. Naime, značajno su veće koncentarcije ovog nutrijenta u uzorcima zahvaćenim na nizvodnim profîlima u odnosu na uzvodne profile, u proseku za oko 50 - 60%, ali su izdvojene kanalske deonice gde se ove vrednosti razlikuju i do 5 puta. Dobijeni rezultati jasno ukazuju na procese povećanja koncentracije i kumulacije fosfora u sedimentima kako u odnosu na zemljište u okruženju, tako i duž pojedinih kanalskih deonica.
AB  - Over 75% of mostly lowland area in Vojvodina is distributed on arable agricultural land. During the substantial period over the year that areas are without vegetation and therefore very susceptible to wind and/or water erosion processes. Erosion may induce significant losses of the finest and the most valuable topsoil constitutes with different adsorbed agrochemicals such as nutrient phosphorous (P) forms, which are usually strong bind to soil inorganic matrix (e.g. clay particles etc). Certain portion of erosion material reaches to relatively dense network of ameliorative drainage channels to be permanently/temporarily deposited. Based on analyses of over 80 drainage channel samples P content was discussed in this study. Detected P concentration in analyzed sediments exceeded its concentration in surrounding arable land by multi-fold. Excessive P levels are detected along a particular channel sections also. Markedly higher levels of this nutrient in downstream section sediments exceeded in average by around 50-60% (i.e. maximally up to 5-fold) P levels in upstream locations-cross sections. Obtained results clearly indicate on processes of P overloading in channel sediment materials in comparison to surrounding arable soils as well along to certain network sections.
T2  - Agroznanje
T1  - Sadržaj fosfora u kanalskim sedimentima
T1  - Phosphorus content in drainage channel sediments
EP  - 324
IS  - 3
SP  - 317
VL  - 12
UR  - conv_790
ER  - 

@article{
author = "Savić, Radovan and Letić, Ljubomir and Ondrašek, Gabrijel and Bezdan, Atila and Nikolić, Vesna",
year = "2011",
abstract = "Preko 75% pretežno ravničarskog područja Vojvodine pokriveno je obradivim poljoprivrednim zemljištem. Znatnim delom godine ove površine su bez vegetacionog pokrivača te su izložene različitim vidovima vodne i eolske erozije. Erozioni procesi dovode do odnošenja najfinijeg površinskog sloja zemljišta a sa njim i unetih agrohemijskih sredstava i opadanja plodnosti. Ovo se pre svega odnosi na sadržaj fosfora čija su jedinjenja snažno vezana za čvrstu fazu zemljišta. Jedan deo čestica pokrenutog nanosa dospeva i do relativno guste mreže melioracionih kanala i tu se privremeno ili trajno taloži. Na osnovu analize preko 80 uzoraka, razmatran je sadržaja fosfora u kanalskim sedimentima. Ustanovljene koncentracije ovog elementa u sedimentima višestruko su iznad njihovog sadržaja u okolnom obradivom zemljištu. Povećanje koncentracije fosfora u sedimentima može se uočiti i duž pojedinih analiziranih kanalskih deonica. Naime, značajno su veće koncentarcije ovog nutrijenta u uzorcima zahvaćenim na nizvodnim profîlima u odnosu na uzvodne profile, u proseku za oko 50 - 60%, ali su izdvojene kanalske deonice gde se ove vrednosti razlikuju i do 5 puta. Dobijeni rezultati jasno ukazuju na procese povećanja koncentracije i kumulacije fosfora u sedimentima kako u odnosu na zemljište u okruženju, tako i duž pojedinih kanalskih deonica., Over 75% of mostly lowland area in Vojvodina is distributed on arable agricultural land. During the substantial period over the year that areas are without vegetation and therefore very susceptible to wind and/or water erosion processes. Erosion may induce significant losses of the finest and the most valuable topsoil constitutes with different adsorbed agrochemicals such as nutrient phosphorous (P) forms, which are usually strong bind to soil inorganic matrix (e.g. clay particles etc). Certain portion of erosion material reaches to relatively dense network of ameliorative drainage channels to be permanently/temporarily deposited. Based on analyses of over 80 drainage channel samples P content was discussed in this study. Detected P concentration in analyzed sediments exceeded its concentration in surrounding arable land by multi-fold. Excessive P levels are detected along a particular channel sections also. Markedly higher levels of this nutrient in downstream section sediments exceeded in average by around 50-60% (i.e. maximally up to 5-fold) P levels in upstream locations-cross sections. Obtained results clearly indicate on processes of P overloading in channel sediment materials in comparison to surrounding arable soils as well along to certain network sections.",
journal = "Agroznanje",
title = "Sadržaj fosfora u kanalskim sedimentima, Phosphorus content in drainage channel sediments",
pages = "324-317",
number = "3",
volume = "12",
url = "conv_790"
}

Savić, R., Letić, L., Ondrašek, G., Bezdan, A.,& Nikolić, V.. (2011). Sadržaj fosfora u kanalskim sedimentima. in Agroznanje, 12(3), 317-324.
conv_790

Savić R, Letić L, Ondrašek G, Bezdan A, Nikolić V. Sadržaj fosfora u kanalskim sedimentima. in Agroznanje. 2011;12(3):317-324.
conv_790 .

Savić, Radovan, Letić, Ljubomir, Ondrašek, Gabrijel, Bezdan, Atila, Nikolić, Vesna, "Sadržaj fosfora u kanalskim sedimentima" in Agroznanje, 12, no. 3 (2011):317-324,
conv_790 .