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Susceptibility Mapping of Soil Water Erosion Using Machine Learning Models
Open AccessArticle

Climate Change Impacts on Soil Erosion and Sediment Yield in a Watershed

1
Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
2
Department of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, Taiwan
3
Research and Development Foundation, National Cheng-Kung University, Tainan 70101, Taiwan
*
Author to whom correspondence should be addressed.
Water 2020, 12(8), 2247; https://doi.org/10.3390/w12082247
Received: 2 July 2020 / Revised: 7 August 2020 / Accepted: 7 August 2020 / Published: 10 August 2020
(This article belongs to the Special Issue Soil–Water Conservation, Erosion, and Landslide)
This study analyzed the influence of climate change on sediment yield variation, sediment transport and erosion deposition distribution at the watershed scale. The study was based on Gaoping River basin, which is among the largest basins in southern Taiwan. To carry out this analysis, the Physiographic Soil Erosion Deposition (PSED) model was utilized. Model results showed a general increase in soil erosion and deposition volume under the A1B-S climate change scenario. The situation is even worsened with increasing return periods. Total erosion volume and total sediment yield in the watershed were increased by 4–25% and 8–65%, respectively, and deposition volumes increased by 2–23%. The study showed how climate change variability would influence the watershed through increased sediment yields, which might even worsen the impacts of natural disasters. It has further illustrated the importance of incorporating climate change into river management projects. View Full-Text
Keywords: climate change; soil erosion; sediment yield; PSED Model climate change; soil erosion; sediment yield; PSED Model
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Chen, C.-N.; Tfwala, S.S.; Tsai, C.-H. Climate Change Impacts on Soil Erosion and Sediment Yield in a Watershed. Water 2020, 12, 2247.

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