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Satellite monitoring of desertification processes in the south of European Russia in 2019-2022

S.S. Shinkarenko^{1, 2} , S.А. Bartalev^{1, 3} , A.N. Berdengalieva² , V.V. Doroshenko²

¹ Space Research Institute RAS, Moscow, Russia
² Federal Scientific Center of Agroecology, Complex Meliorations and Agroforestry RAS, Volgograd, Russia
³ Kazan Federal University, Kazan, Russia

Accepted: 24.10.2022
DOI: 10.21046/2070-7401-2022-19-5-319-327

The present study is a part of the ongoing research on monitoring the changes in the areas of open sands and deflated territories of the Astrakhan region, the republics of Dagestan and Kalmykia, the Stavropol Krai with the use of Earth remote sensing technologies. The severe drought of 2020 and the uncontrolled livestock led to an increase in the area of shifting sands. As of May 2022, 181.3 thousand hectares of pastures without vegetation cover were recorded, which is almost half as much as in 2021. Favorable hydrothermal conditions in the second half of 2021 against the backdrop of a 30 % decrease in livestock numbers contributed to the recovery of vegetation on the sands. However, due to the dry summer of 2022, the risk of an increase in the area of shifting sands remains high, which is confirmed by dust storms of August 18–28, 2022. It is necessary to continue these observations so as to ensure the timely regulation of livestock numbers and to implement revegetation where the intensification of desertification processes is recorded.

Keywords: Kalmykia, Astrakhan region, remote sensing, Landsat, desertification, pasture loads, deflation

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References:

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