湖北省清江流域土壤侵蚀时空变化及影响因子研究  

Study on Spatial and Temporal Changes of Soil Erosion and Influencing Factors in Qingjiang River Basin of China′s Hubei Province

作　　者：涂怡 陈虎 尹雯 黄卫 张奇 方朂锡 向丽 孙毅 TU Yi;CHEN Hu;YIN Wen;HUANG Wei;ZHANG Qi;FANG Xuxi;XIANG Li;SUN Yi(Hubei Key Laboratory of Biological Resources Protection and Utilization,Enshi 445000,China;College of Forestry and Horticulture,Hubei Minzu University,Enshi 445000,China;Hubei Trading Western Hubei Ecological New Town Investment Co.,Ltd.,Enshi 445000,China;Natural Resources and Planning Bureau of Laifeng County,Hubei Province,Laifeng 445700,China)

机构地区：[1]生物资源保护与利用湖北省重点实验室,湖北恩施445000 [2]湖北民族大学林学园艺学院,湖北恩施445000 [3]湖北交投鄂西生态新镇投资有限公司,湖北恩施445000 [4]湖北省来凤县自然资源和规划局,湖北来凤445700

出　　处：《湖北民族大学学报（自然科学版）》2024年第4期593-600,共8页Journal of Hubei Minzu University:Natural Science Edition

基　　金：国家自然科学基金项目(71663017)。

摘　　要：为探究湖北省清江流域的土壤侵蚀变化特征及影响因子,通过修正通用土壤流失方程(revised universal soil loss equation,RUSLE),探讨了清江流域2005—2020年土壤侵蚀的变化特征和土壤侵蚀与影响因子的关系;同时,借助地理探测器,探究了影响土壤侵蚀的主导因子。研究发现,2005—2020年清江流域的土壤侵蚀模数均值呈现先升后降再升的趋势,清江流域的主要土壤侵蚀类型为微度侵蚀,其次为轻度侵蚀;清江流域2005—2020年土地利用类型主要为林地和耕地,土地转移主要集中在林地与耕地,其中,耕地土壤侵蚀程度重于林地;清江流域土壤侵蚀在植被覆盖度(fractional vegetation cover,FVC)为[0.6,0.8]的区域最为严重;地理探测器结果表明,FVC是影响土壤侵蚀的主导因子,FVC和土地利用的交互作用对土壤侵蚀变化的解释力最高。该研究可为清江流域的水土流失防治工作提供一定的依据。In order to investigate the change characteristics of soil erosion modulus and its influencing factors in Qingjiang River Basin of China′s Hubei Province,the revised universal soil loss equation(RUSLE)was used to investigate the change characteristics of soil erosion in the Qingjiang River Basin from 2005 to 2020 and the relationship between soil erosion and the influencing factors.Meanwhile,with the help of Geodetector,the key influencing factors dominating soil erosion were explored.The study found that there was a slight increase in the mean value of the soil erosion modulus in the Qingjiang River Basin from 2005 to 2020,showing a trend of increasing,then decreasing,and then increasing,and the main type of erosion in the Qingjiang River Basin was slight erosion,followed by mild erosion.The types of land use in Qingjiang River Basin mainly consisted of forest land and cropland from 2005 to 2020,and the transfer of land was mainly concentrated in the area between forest land and cropland,of which,the cropland and the cropland were the main land uses in Qingjiang River Basin and the soil erosion degree of cultivated land was greater than that of forest land.Soil erosion in the Qingjiang River Basin was most serious at fractional vegetation cover(FVC)of[0.6,0.8].Among the selected factors,the Geodetector study found that FVC was the most important factor that influences the erosion of the soil,and that in explaining changes in soil erosion,the interaction between FVC and land use had the highest explanatory power.This study could provide a basis for the prevention and control of soil erosion in the Qingjiang River Basin.

关 键 词：RUSLE 地理探测器 土壤侵蚀 清江流域 土地利用类型 植被覆盖度 

分 类 号：S157.1[农业科学—土壤学]