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Soil erosion models verification in a small catchment for different time windows with changing cropland boundaryстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Zhidkin Andrey, Gennadiev Alexander, Fomicheva Daria, Shamshurina Evgenia, Golosov Valentin
- Журнал: Geoderma
- Том: 430
- Год издания: 2023
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 116322
- DOI: 10.1016/j.geoderma.2022.116322
- Аннотация: This paper presents very detailed studies of soil erosion within a small arable catchment located in the centre ofthe East European Plain. Sediment redistribution was estimated based on soil profile truncation, radiocesiummethods and erosion modelling. WaTEM/SEDEM and State Hydrological Institute model were used for theevaluation of soil losses during rainfall and snowmelt, respectively. Evaluation of soil erosion and sedimentredeposition was carried out taking into account historical changes in the cropland boundaries. Model estimatesof soil losses from arable land are in good agreement with evaluations of erosion rates based on the results fieldmethod applications, taking into account the uncertainty of the methods. Erosion modelling made it possible tofairly plausibly estimate the decrease in soil erosion losses by approximately by a third as a result of a small(about 5%) reduction in the area of arable land in the studied catchment. The main disadvantage of appliederosion models were associated with the insufficient accuracy of estimates of the sedimentation volume andlocation deposition zones, mainly outside the arable land. The simulated net erosion for the entire catchment wasunderestimated by 3.5–4.5 times compared with field methods. This simulation block must be calibrated takinginto account the regional coefficients of sediment transport in the bottoms of the dry valley network.
- Добавил в систему: Голосов Валентин Николаевич
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