soil erosion

The aim of the study is to identify relationships between the agrochemical indicators of the arable layer (humus content, mobile phosphorus, exchangeable potassium, and pH values of exchangeable acidity), field moisture, and spectral characteristics of soils in order to assess the degree of erosion under the conditions of the Chuvash Republic. The studies were carried out at five test sites (14 sampling points) on sod-podzolic soils, gray forest soils, leached chernozems, and their eroded varieties.

The article presents the results of monitoring of erosion processes on chernozems of the Volga region from 1973 to 2015. It is shown that the observed increase in winter temperatures can reduce the depth of soil freezing, increase the number of days with thaws and reduction of water reserves in the snow to the top of the snow melting. These processes improve the absorption of melt water conditions and lead to a decrease of spring runoff.