Mapping and forecasting of changes of eroded soils (Central chernozem region of Russia)

Zhidkin, A.P.

Автор: Zhidkin A.P.
Журнал: IOP Conference Series: Earth and Environmental Science
Номер: 659
Год издания: 2021
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 012006
DOI: 10.1088/1755-1315/659/1/012006
Аннотация: The paper presents assessment of the current state and risk of soil degradation ofarable land (area ~800 sq. km.) from erosion. The rates of soil erosion were calculated by theWATEM/SEDEM. The obtained rates of soil erosion were converted into erosion losses of thesoil profile and compared with the current thickness of the humus horizons (according to fieldsurvey data). The calculated and actual (according to the field survey) soil losses correspond toeach other. The rate of soil erosion in the southern section is almost twice higher than in thenorthern section, however, the difference in the area of eroded soils is 4.4 times higher. Theforecast was calculated for each pixel with respect to the current thickness of the humushorizons. With the stable rate of erosion in the next 50 years, the area of eroded soils willalmost double on the studied territory, and in 200 years will grow almost 3 times relative to thecurrent state. After 200 years of plowing without soil protection measures, the share of erodedsoils in the northern section will only reach the current level of soil degradation in the southernsection, while the share of eroded soils on south section will reach almost 35%. These resultsclearly demonstrate that the areas of priority application of soil conservation measures shouldbe determined not by the rate of erosion, but by the rate of degradation of the soil cover fromerosion.
Добавил в систему: Жидкин Андрей Петрович

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