Assessment of Integrated BMPs for Subbasin-Scale Soil Erosion Reduction Considering Spatially Distributed Farmland Characteristics DOI Creative Commons
Jimin Lee, Seoro Lee,

Woon Ji Park

и другие.

Agriculture, Год журнала: 2025, Номер 15(8), С. 893 - 893

Опубликована: Апрель 20, 2025

Recent climate change has intensified extreme rainfall events, exacerbating soil erosion and agricultural nonpoint source pollution in South Korea’s steeply sloped farmlands. This study assessed reduction measures by applying individual Best Management Practices (BMPs) cropland expanding upon existing management efforts through the implementation of additional BMPs aimed at further reducing erosion. Furthermore, priority areas were identified based on efficiency within subbasins. For this evaluation, Soil Water Assessment Tool (SWAT) was employed, with a spatially distributed Hydrological Response Unit (SD-HRU) module calibrated Modified Universal Loss Equation (MUSLE) parameters tailored to Korean watershed conditions. Scenarios 1 2 implemented area evaluate BMP effectiveness controlling suspended sediment (SS) loads. Scenario applied set already place, while involved addition supplementary enhance control. resulted 34.6% annual 35.0% decrease SS concentration, whereas achieved 59.3% 57.3% concentration. Subbasin-scale evaluations revealed considerable spatial variability control efficiency, ranging from 1.3% 70.5%, highlighting necessity for targeted strategies. These results underscore importance employing adaptive approaches offer practical guidance enhancing sustainability, particularly regions vulnerable hydrometeorological events.

Язык: Английский

Assessment of Integrated BMPs for Subbasin-Scale Soil Erosion Reduction Considering Spatially Distributed Farmland Characteristics DOI Creative Commons
Jimin Lee, Seoro Lee,

Woon Ji Park

и другие.

Agriculture, Год журнала: 2025, Номер 15(8), С. 893 - 893

Опубликована: Апрель 20, 2025

Recent climate change has intensified extreme rainfall events, exacerbating soil erosion and agricultural nonpoint source pollution in South Korea’s steeply sloped farmlands. This study assessed reduction measures by applying individual Best Management Practices (BMPs) cropland expanding upon existing management efforts through the implementation of additional BMPs aimed at further reducing erosion. Furthermore, priority areas were identified based on efficiency within subbasins. For this evaluation, Soil Water Assessment Tool (SWAT) was employed, with a spatially distributed Hydrological Response Unit (SD-HRU) module calibrated Modified Universal Loss Equation (MUSLE) parameters tailored to Korean watershed conditions. Scenarios 1 2 implemented area evaluate BMP effectiveness controlling suspended sediment (SS) loads. Scenario applied set already place, while involved addition supplementary enhance control. resulted 34.6% annual 35.0% decrease SS concentration, whereas achieved 59.3% 57.3% concentration. Subbasin-scale evaluations revealed considerable spatial variability control efficiency, ranging from 1.3% 70.5%, highlighting necessity for targeted strategies. These results underscore importance employing adaptive approaches offer practical guidance enhancing sustainability, particularly regions vulnerable hydrometeorological events.

Язык: Английский

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