<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Reduction of nitrogen and phosphorus inputs into surface waters from nonpoint agricultural sources requires targeted application of differentiated measures. In the study focused on soil and water conservation in the Jihlava river basin upstream of the Dalešice reservoir, we identified areas at potential risk of soil erosion, elevated infiltration and nutrient leaching, tile-drained areas and vulnerable riparian zones of water bodies. We then designed a system of complex protective measures for this river basin in more variants, and their effectiveness was estimated using simple empirical model calculations and research findings. Application of the measures defined by optimal variant 3 in the studied watershed could lead to reduction of the soil erosion effects on the surface water quality by 26.5 %, with simultaneous reduction of the amount of washed out total nitrogen by 22.8 %. The results of our study constitute a partial component of the Qualitative Model of the Jihlava River Basin and they were provided for use to the Vysočina Region authorities and the State Land Office.</p></abstract>

Reduction of nitrogen and phosphorus inputs into surface waters from nonpoint agricultural sources requires targeted application of differentiated measures. In the study focused on soil and water conservation in the Jihlava river basin upstream of the Dalešice reservoir, we identified areas at potential risk of soil erosion, elevated infiltration and nutrient leaching, tile-drained areas and vulnerable riparian zones of water bodies. We then designed a system of complex protective measures for this river basin in more variants, and their effectiveness was estimated using simple empirical model calculations and research findings. Application of the measures defined by optimal variant 3 in the studied watershed could lead to reduction of the soil erosion effects on the surface water quality by 26.5 %, with simultaneous reduction of the amount of washed out total nitrogen by 22.8 %. The results of our study constitute a partial component of the Qualitative Model of the Jihlava River Basin and they were provided for use to the Vysočina Region authorities and the State Land Office.

Integration of soil and water conservation measures in an intensively cultivated watershed – a case study of Jihlava river basin (Czech Republic)

Research Institute for Soil and Water Conservation, Department of Land Consolidations and Landscape Use, Lidická 25/27, 602 00 Brno,

Ph. D., Research Institute for Soil and Water Conservation, Žabovřeská 250, 156 27 Prague,

AQUATIS, a.s., Botanická 834, 602 00 Brno,

European Countryside

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Reduction of nitrogen and phosphorus inputs into surface waters from nonpoint agricultural sources requires targeted application of differentiated measures. In...

Integration of soil and water conservation measures in an intensively cultivated watershed – a case study of Jihlava river basin (Czech Republic)

Article Category: Research articles

Published Online: Apr 06, 2017

Page range: 17 - 28

Received: May 12, 2016

Accepted: Sep 26, 2016

DOI: https://doi.org/10.1515/euco-2017-0002

Keywords
Dalešice reservoir, non-point agricultural pollution, nitrogen, phosphorus, soil erosion, nutrient leaching, protective measures, Jihlava River

© by Jana Konečná

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Integration of soil and water conservation measures in an intensively cultivated watershed – a case study of Jihlava river basin (Czech Republic)

Article Category: Research articles

Published Online: Apr 06, 2017

Page range: 17 - 28

Received: May 12, 2016

Accepted: Sep 26, 2016

DOI: https://doi.org/10.1515/euco-2017-0002

KeywordsDalešice reservoir, non-point agricultural pollution, nitrogen, phosphorus, soil erosion, nutrient leaching, protective measures, Jihlava River

© by Jana Konečná

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Dalešice reservoir, non-point agricultural pollution, nitrogen, phosphorus, soil erosion, nutrient leaching, protective measures, Jihlava River