TY  - JOUR
AU  - Cvijanović, Dušanka
AU  - Gavrilovic, Olivera
AU  - Novković, Maja
AU  - Milošević, Đurađ
AU  - Stojković Piperac, Milica
AU  - Anđelković, Ana
AU  - Damnjanović, Bojan
AU  - Denić, Ljubiša
AU  - Drešković, Nusret
AU  - Radulović, Snežana
PY  - 2023
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/663
AB  - We explored the long-term influence of land use in the riparian zone on the water quality of the Tisza River, as a model of a non-wadeable lowland river located in a temperate, predominantly agricultural landscape. The analysis was based on a comparison of water quality variables between three river sites having contrasting, but constant land use patterns (in 500 m upstream radius) during the study period (2006-2019). While the first river site was characterized primarily by forests, the second and the third were dominated by urban and agricultural areas respectively. The variables which showed a significant difference between the pairs of sampling sites were oxygen saturation, nitrite nitrogen, total nitrogen, and orthophosphates. In contrast to urban and agricultural land, riparian forests showed a positive long-term influence on the river water quality. Natural and seminatural forests and shrubs had a favorable long-term influence on nutrient concentrations and oxygen regime of the Tisza River. However, the retention effects of orthophosphates and nitrite/nitrate content here were relatively low, demonstrating the limited performance of riparian buffers as a main or only management option in the Pannonian landscape, as the agricultural hotspot of Central and Eastern Europe. In conclusion, the riparian buffer assessment design applied in this study may be successfully used in pre-restoration monitoring, prior to the construction of buffer strips.
PB  - Carpathian Association of Environment and Earth Sciences
T2  - Carpathian Journal of Earth and Environmental Sciences
T1  - Predicting Retention Effects of a Riparian Zone in An Agricultural Landscape: Implication for Eutrophication Control of the Tisza River, Serbia
EP  - 36
IS  - 1
SP  - 27
VL  - 18
DO  - 0.26471/cjees/2023/018/23
ER  - 

@article{
author = "Cvijanović, Dušanka and Gavrilovic, Olivera and Novković, Maja and Milošević, Đurađ and Stojković Piperac, Milica and Anđelković, Ana and Damnjanović, Bojan and Denić, Ljubiša and Drešković, Nusret and Radulović, Snežana",
year = "2023",
abstract = "We explored the long-term influence of land use in the riparian zone on the water quality of the Tisza River, as a model of a non-wadeable lowland river located in a temperate, predominantly agricultural landscape. The analysis was based on a comparison of water quality variables between three river sites having contrasting, but constant land use patterns (in 500 m upstream radius) during the study period (2006-2019). While the first river site was characterized primarily by forests, the second and the third were dominated by urban and agricultural areas respectively. The variables which showed a significant difference between the pairs of sampling sites were oxygen saturation, nitrite nitrogen, total nitrogen, and orthophosphates. In contrast to urban and agricultural land, riparian forests showed a positive long-term influence on the river water quality. Natural and seminatural forests and shrubs had a favorable long-term influence on nutrient concentrations and oxygen regime of the Tisza River. However, the retention effects of orthophosphates and nitrite/nitrate content here were relatively low, demonstrating the limited performance of riparian buffers as a main or only management option in the Pannonian landscape, as the agricultural hotspot of Central and Eastern Europe. In conclusion, the riparian buffer assessment design applied in this study may be successfully used in pre-restoration monitoring, prior to the construction of buffer strips.",
publisher = "Carpathian Association of Environment and Earth Sciences",
journal = "Carpathian Journal of Earth and Environmental Sciences",
title = "Predicting Retention Effects of a Riparian Zone in An Agricultural Landscape: Implication for Eutrophication Control of the Tisza River, Serbia",
pages = "36-27",
number = "1",
volume = "18",
doi = "0.26471/cjees/2023/018/23"
}

Cvijanović, D., Gavrilovic, O., Novković, M., Milošević, Đ., Stojković Piperac, M., Anđelković, A., Damnjanović, B., Denić, L., Drešković, N.,& Radulović, S.. (2023). Predicting Retention Effects of a Riparian Zone in An Agricultural Landscape: Implication for Eutrophication Control of the Tisza River, Serbia. in Carpathian Journal of Earth and Environmental Sciences
Carpathian Association of Environment and Earth Sciences., 18(1), 27-36.
https://doi.org/0.26471/cjees/2023/018/23

Cvijanović D, Gavrilovic O, Novković M, Milošević Đ, Stojković Piperac M, Anđelković A, Damnjanović B, Denić L, Drešković N, Radulović S. Predicting Retention Effects of a Riparian Zone in An Agricultural Landscape: Implication for Eutrophication Control of the Tisza River, Serbia. in Carpathian Journal of Earth and Environmental Sciences. 2023;18(1):27-36.
doi:0.26471/cjees/2023/018/23 .

Cvijanović, Dušanka, Gavrilovic, Olivera, Novković, Maja, Milošević, Đurađ, Stojković Piperac, Milica, Anđelković, Ana, Damnjanović, Bojan, Denić, Ljubiša, Drešković, Nusret, Radulović, Snežana, "Predicting Retention Effects of a Riparian Zone in An Agricultural Landscape: Implication for Eutrophication Control of the Tisza River, Serbia" in Carpathian Journal of Earth and Environmental Sciences, 18, no. 1 (2023):27-36,
https://doi.org/0.26471/cjees/2023/018/23 . .

TY  - JOUR
AU  - Novković, Maja
AU  - Cvijanović, Dušanka
AU  - Minučer, Mesaroš
AU  - Pavić, Dragoslav
AU  - Drešković, Nusret
AU  - Milošević, Đurađ
AU  - Anđelković, Ana
AU  - Damnjanović, Bojan
AU  - Radulović, Snežana
PY  - 2023
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/1151
AB  - UAV technologies provide a time- and cost-efficient framework for a variety of environmental monitoring domains. It also increases data resolution and provides new insights into observed objects and phenomena, especially within the difficult-to-access and complex for monitoring aquatic habitats. The objective of this study was to develop UAV-based acquisition and GIS-based image processing guidelines for aquatic macrophyte detection and monitoring in large temperate rivers. According to the European standard CEN EN -14184:2014, the assessment of aquatic macrophytes should be performed using the transect approach. Large rivers, such as the Danube, represent an exception and should be evaluated using 1km transects. Therefore, seven transects of the Middle Danube in Serbia were simultaneously surveyed using traditional field methods and novel UAV technology. UAV images were acquired using RGB and multispectral cameras carried by a fixed-wing drone. The images were processed and orthomosaics were classified using Object Based Image Analysis (OBIA), to create digital GIS maps of the river transects. During the traditional monitoring approach, the relative abundance of 22 macrophyte species was recorded along the transects. Using the UAV technology and OBIA approach eight macrophyte classes were distinguished based on dominant macrophyte taxa or plant life form traits. Aquatic macrophytes were 'almost perfectly' distinguished from the orthomosaics, achieving a high classification accuracy of 96 % / 88 % / 0.84 for RGB and 94 % / 97 % / 0.95 Producers /Users accuracy/Kappa index for the multispectral approach. Individual macrophyte classes accuracy varied between 0.5 and 1 Kappa and were generally higher for the multispectral imagery approach. Although the resolution of the taxonomic data is lower, UAV monitoring provided the necessary spatial context of macrophytes distribution and absolute area occupied by macrophytes. It also provided information on the diversity and distribution of habitats along the river. Therefore, the UAV-assisted monitoring approach described in this study can be effectively integrated into macrophyte monitoring during large river expeditions such as the JDS.
PB  - Carpathian Association of Environment and Earth Sciences
T2  - Carpathian Journal of Earth and Environmental Sciences
T1  - Towards UAV Assisted Monitoring Of An Aquatic Vegetation Within The Large Rivers – The Middle Danube
EP  - 322
IS  - 2
SP  - 307
VL  - 18
DO  - 10.26471/cjees/2023/018/261
ER  - 

@article{
author = "Novković, Maja and Cvijanović, Dušanka and Minučer, Mesaroš and Pavić, Dragoslav and Drešković, Nusret and Milošević, Đurađ and Anđelković, Ana and Damnjanović, Bojan and Radulović, Snežana",
year = "2023",
abstract = "UAV technologies provide a time- and cost-efficient framework for a variety of environmental monitoring domains. It also increases data resolution and provides new insights into observed objects and phenomena, especially within the difficult-to-access and complex for monitoring aquatic habitats. The objective of this study was to develop UAV-based acquisition and GIS-based image processing guidelines for aquatic macrophyte detection and monitoring in large temperate rivers. According to the European standard CEN EN -14184:2014, the assessment of aquatic macrophytes should be performed using the transect approach. Large rivers, such as the Danube, represent an exception and should be evaluated using 1km transects. Therefore, seven transects of the Middle Danube in Serbia were simultaneously surveyed using traditional field methods and novel UAV technology. UAV images were acquired using RGB and multispectral cameras carried by a fixed-wing drone. The images were processed and orthomosaics were classified using Object Based Image Analysis (OBIA), to create digital GIS maps of the river transects. During the traditional monitoring approach, the relative abundance of 22 macrophyte species was recorded along the transects. Using the UAV technology and OBIA approach eight macrophyte classes were distinguished based on dominant macrophyte taxa or plant life form traits. Aquatic macrophytes were 'almost perfectly' distinguished from the orthomosaics, achieving a high classification accuracy of 96 % / 88 % / 0.84 for RGB and 94 % / 97 % / 0.95 Producers /Users accuracy/Kappa index for the multispectral approach. Individual macrophyte classes accuracy varied between 0.5 and 1 Kappa and were generally higher for the multispectral imagery approach. Although the resolution of the taxonomic data is lower, UAV monitoring provided the necessary spatial context of macrophytes distribution and absolute area occupied by macrophytes. It also provided information on the diversity and distribution of habitats along the river. Therefore, the UAV-assisted monitoring approach described in this study can be effectively integrated into macrophyte monitoring during large river expeditions such as the JDS.",
publisher = "Carpathian Association of Environment and Earth Sciences",
journal = "Carpathian Journal of Earth and Environmental Sciences",
title = "Towards UAV Assisted Monitoring Of An Aquatic Vegetation Within The Large Rivers – The Middle Danube",
pages = "322-307",
number = "2",
volume = "18",
doi = "10.26471/cjees/2023/018/261"
}

Novković, M., Cvijanović, D., Minučer, M., Pavić, D., Drešković, N., Milošević, Đ., Anđelković, A., Damnjanović, B.,& Radulović, S.. (2023). Towards UAV Assisted Monitoring Of An Aquatic Vegetation Within The Large Rivers – The Middle Danube. in Carpathian Journal of Earth and Environmental Sciences
Carpathian Association of Environment and Earth Sciences., 18(2), 307-322.
https://doi.org/10.26471/cjees/2023/018/261

Novković M, Cvijanović D, Minučer M, Pavić D, Drešković N, Milošević Đ, Anđelković A, Damnjanović B, Radulović S. Towards UAV Assisted Monitoring Of An Aquatic Vegetation Within The Large Rivers – The Middle Danube. in Carpathian Journal of Earth and Environmental Sciences. 2023;18(2):307-322.
doi:10.26471/cjees/2023/018/261 .

Novković, Maja, Cvijanović, Dušanka, Minučer, Mesaroš, Pavić, Dragoslav, Drešković, Nusret, Milošević, Đurađ, Anđelković, Ana, Damnjanović, Bojan, Radulović, Snežana, "Towards UAV Assisted Monitoring Of An Aquatic Vegetation Within The Large Rivers – The Middle Danube" in Carpathian Journal of Earth and Environmental Sciences, 18, no. 2 (2023):307-322,
https://doi.org/10.26471/cjees/2023/018/261 . .