干旱区生态环境知识资源中心(Arid): Dynamic Evolution and Quantitative Attribution of Soil Erosion Based on Slope Units: A Case Study of a Karst Plateau-Gorge Area in SW China

Arid

DOI	10.3390/land11081134
	Dynamic Evolution and Quantitative Attribution of Soil Erosion Based on Slope Units: A Case Study of a Karst Plateau-Gorge Area in SW China
	Shen, Chuhong; Xiong, Kangning; Shu, Tian
通讯作者	Xiong, KN
来源期刊	LAND
EISSN	2073-445X
出版年	2022
卷号	11 期号:8
英文摘要	Exploring the dynamics of soil erosion and identifying its driving mechanisms is key to understanding soil erosion processes, particularly in karst areas. In this study, the RUSLE model, optimized on the basis of rocky desertification factors, was used to estimate soil erosion in a karst plateau gorge area in SW China. The spatial and temporal dynamics of soil erosion in the region over the past 20 years were analyzed on the basis of slope units, while the relationship between soil erosion and elevation, slope, fractional vegetation cover (FVC), karst rocky desertification (KRD), rainfall, and land use cover/change (LUCC) was identified quantitatively by the geographical detector on the basis of spatial heterogeneity. The results showed that (1) The no erosion area decreased from 2000 to 2020, with the highest proportion of light to medium erosion and an increasing trend of soil erosion. (2) Soil erosion conversion mainly occurred between no erosion, slight erosion, and light erosion. (3) The hotspots of erosion occurred in high slope-low elevation and high slope-high elevation units, while the coldspots of erosion occurred in low slope-low elevation units. (4) Soil erosion was positively correlated with FVC and slope, and negatively correlated with KRD. (5) The dominant factor of soil erosion changed from KRD-slope to LUCC-slope and finally to elevation-slope, while the q value of rainfall-elevation had the most significant increase throughout the study period. This study will help to advance the goal of sustainable development of soil and water conservation in karst areas.
英文关键词	karst soil erosion topographical units RUSLE geographical detector influencing factors
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000845747100001
WOS关键词	BARE SLOPES ; RUSLE ; GIS ; PROVINCE ; RUNOFF ; MODEL ; GUANGXI ; HAZARD ; BASIN ; RISK
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393682
推荐引用方式 GB/T 7714	Shen, Chuhong,Xiong, Kangning,Shu, Tian. Dynamic Evolution and Quantitative Attribution of Soil Erosion Based on Slope Units: A Case Study of a Karst Plateau-Gorge Area in SW China[J],2022,11(8).
APA	Shen, Chuhong,Xiong, Kangning,&Shu, Tian.(2022).Dynamic Evolution and Quantitative Attribution of Soil Erosion Based on Slope Units: A Case Study of a Karst Plateau-Gorge Area in SW China.LAND,11(8).
MLA	Shen, Chuhong,et al."Dynamic Evolution and Quantitative Attribution of Soil Erosion Based on Slope Units: A Case Study of a Karst Plateau-Gorge Area in SW China".LAND 11.8(2022).