Spatiotemporal Changes in the Erosion and Deposition Processes in a Small Catchment in the North of the Central Russian Upland

Golosov, V.N.; Shamshurina, E.N.; Kolos, G.I.; Petel’ko, A.I.; Zhidkin, A.P.

Авторы: Golosov V.N., Shamshurina E.N., Kolos G.I., Petel’ko A.I., Zhidkin A.P.
Журнал: Eurasian Soil Science
Том: 57
Номер: 5
Год издания: 2024
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 838
Последняя страница: 852
DOI: 10.1134/S1064229323603682
Аннотация: Soil erosion is for the first time comprehensively studied in a catchment of 41 ha (near the villageof Lomovets, Orel oblast) in the zone of gray forest soils (Luvic Phaeozems), which are considerably more susceptible to erosion as compared with chernozems. Analysis of archive data and historical cartographic materialsshows that the catchment has been plowed for 200 ± 10 years. The rates of soil erosion and deposition over theentire cultivation period with/without taking into account soil self-restoration, last 50 ± 25 years, post-Chernobyl period (1986–2022), and the single erosion event on May 31, 2022 have been determined using fieldmethods (soil- profile truncation, radiocesium technique, and rill methods, as well as a detailed UAV survey)and the model computations using the WaTEM/SeDEM model. The spatial distribution of soil erosion/deposition pattern is assessed. The estimates of soil losses and accumulation demonstrate considerablefluctuations in the rates of erosion and deposition over the past 200 years, which are mainly determined bythe conditions of snowmelt runoff formation, repetition and distribution of runoff-forming rainfalls in thewarm season, set of cultivated crops, tillage frequency and practices, and changes in field boundaries. Thelong-term average annual estimates of soil erosion over the agricultural period are higher than the estimatesfor the post-Chernobyl period, because the rates of soil erosion have decreased over the last 30 years. TheWaTEM/SeDEM-based estimates of soil losses are generally comparable to the soil losses assessed accordingto soil morphology, provided that the redistribution of sediments to the lower boundaries of arable land istaken into account. The spatial structure of a single erosive event is to a considerable degree close to the spatialarrangement of the eroded and aggraded soil areas formed over the entire agricultural period.
Добавил в систему: Голосов Валентин Николаевич

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