Driving forces and their interactions of soil erosion in soil and water conservation regionalization at the county scale with a high cultivation rate

作     者：LUO Bang-lin LI Jiang-wen GONG Chun-ming ZHONG Shou-qin WEI Chao-fu LUO Bang-lin;LI Jiang-wen;GONG Chun-ming;ZHONG Shou-qin;WEI Chao-fu

作者机构：College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Key Laboratory of Eco-environment in Three Gorges Region(Ministry of Education)Southwest UniversityChongqing 400716China Chongqing Water Conservancy&Electric Power Construction Survey&Design Research Institute Co.LTDChongqing 401120China Key Laboratory of Arable Land Conservation(Southwestern China)Ministry of AgricultureChongqing 400715China State Cultivation Base of Eco-agriculture for Southwest Mountainous LandSouthwest UniversityChongqing 400715China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2023年第20卷第9期

页      面：2502-2518页

核心收录：

学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程] 

基　　金：supported by the Fundamental Research Funds for the National Natural Science Foundation of China(No:42077007) the General Project of Chongqing Natural Science Foundation(No:CSTB2022NSCQ-MSX0446) 

主　　题：Soil and Water Conservation Regionalization Driving factors Soil erosion Geographical detector model Spatial heterogeneity 

摘      要：Soil erosion control based on county scale Soil and Water Conservation Regionalization(SWCR)is an essential component of China s ecological civilization *** SWCR,the quantitative analysis of the spatial heterogeneity and driving factors of soil erosion among different regions is still *** is of great significance for soil erosion control to deeply examine the factors contributing to soil erosion(natural,land use,and socioeconomic factors)and their interaction at the county and regional *** study focused on a highly cultivated area,Hechuan District of Chongqing in the Sichuan *** district(with 30 townships)was divided into four soil and water conservation regions(Ⅰ-Ⅳ)using principal component and hierarchical cluster *** driving factors of soil erosion were identified using the geographical detector *** results showed thatⅰ)the high cultivation rate was a prominent factor of soil erosion,and the sloping farmland accounted for 78.4%of the soil erosion in the study area;ⅱ)land use factors demonstrated the highest explanatory power in soil erosion,and the average interaction of land use factors explained 60.1%of soil erosion in the study area;ⅲ)the interaction between natural factors,socioeconomic factors,and land use factors greatly contributes to regional soil erosion through nonlinear-enhancement of double-factor *** study highlights the importance of giving special attention to the effects of land use factors on soil erosion at the county scale,particularly in mountainous and hilly areas with extensive sloping farmland and a high cultivation rate.