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A PROJECT-BASED APPROACH TO REDUCE THE RISK OF SOIL EROSION IN AGRICULTURAL LANDSCAPES OF SMALL RIVER BASINS USING GIS TECHNOLOGIES
Abstract
One of the main geo-environmental issues of the Central Black Earth Region is the degradation of the topsoil of agricultural landscapes caused by intensive water erosion. Enhanced water erosion processes in agricultural landscapes limit, on the one hand, the possibility of sustainable agricultural production, and on the other hand, they disrupt the ecological balance of geo-ecosystems. The goal of the study was to assess the risk of water erosion of soils in intensively exploited agricultural landscapes on the example of the Vorsklitsa river basin (Belgorod region, Russia). For the study area, the assessment of potential soil losses from storm erosion was performed using modern methods of geoinformation modelling and processing of data from Earth remote sensing. A universal soil loss equation was used to estimate the average annual soil loss module in GIS (RUSLE). This made it possible to assess the erosion potential of the basin and to develop a map of erosion risk for cultivated land. In conclusion, an analysis of efficiency of implementation of erosion control measures in the catchment under regional environmental programs was performed. The effect of land treatment measures on arable land was shown through the reduction of the average annual indicator of potential erosion losses.
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