Study on soil erosion and its driving factors from the perspective of landscape in Xiushui watershed, China

Soil erosion (SE) is one of the most serious disasters in the world, which directly damage the productivity of the land and affect human well-being. How to effectively mitigate soil erosion is a challenge faced by all countries in the world. In this study, soil erosion was quantitatively assessed ba...

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Bibliographic Details
Published in:Scientific reports 2023-05, Vol.13 (1), p.8182-8182, Article 8182
Main Authors: Wen, Linsheng, Peng, Yun, Zhou, Yunrui, Cai, Guo, Lin, Yuying, Li, Baoyin
Format: Article
Language:English
Subjects:
704/158/2458
704/158/851
704/4111
Correlation analysis
Deforestation
Extreme weather
Humanities and Social Sciences
Land use
Landscape
multidisciplinary
Rainfall
Science
Science (multidisciplinary)
Soil erosion
Sustainability management
Urbanization
Watersheds
Well being
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Summary:Soil erosion (SE) is one of the most serious disasters in the world, which directly damage the productivity of the land and affect human well-being. How to effectively mitigate soil erosion is a challenge faced by all countries in the world. In this study, soil erosion was quantitatively assessed base on the RULSE model in an ecologically fragile area [Xiushui watershed (XSW)], and the effects of three major categories of factors (land use/cover change, landscape fragmentation and climate) on soil erosion were investigated using correlation analysis and structural equation model. The results indicated that there was no continuous increase or decrease trend on the SE of XSW with impact of rainfall, the mean values of SE were 2205.27 t/ha, 3414.25 t/ha and 3319.44 t/ha from 2000 to 2020 and the hot areas of SE were mainly distributed around the Xiushui river channel, respectively. The expansion of urbanization (the area of impervious increased from 113.12 to 252.57 km 2 ) aggravated landscape fragmentation, and the landscape fragmented area had some overlap with the hot zone of SE. Additionally, the LUCC factor dominated by NDVI, landscape fragmentation factor and climate factor dominated by rainfall had a directly driving effect on SE, where the path coefficient of landscape fragmentation was 0.61 ( P  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-35451-7