水土保持研究2026，Vol.33Issue(1)：90-100,110,12.DOI:10.13869/j.cnki.rswc.2026.01.015
窟野河流域植被覆盖及水土保持功能的时空演变及其驱动机制
Spatiotemporal evolution of vegetation cover and soil and water conservation function in Kuye River Basin and its driving mechanisms
摘要
Abstract
[Objective]This study aims to clarify the spatial patterns and variation characteristics of vegetation cover in the Kuye River Basin,and its correlation with soil and water conservation services,reveal the core driving roles of topographic and climatic factors and the interaction effects of natural and social factors,and determine key suitability intervals,thereby providing a basis for investigating the relationship between vegetation cover and soil and water conservation services and its driving mechanisms in the river basin.[Methods]Based on the Landsat images from 1990 to 2020,the fractional vegetation cover(FVC)was inverted by the pixel dichotomy model,the soil and water conservation services were quantified using the InVEST model,and the driving mechanisms were revealed using the geodetector.[Results]The FVC in the river basin showed a spatial pattern of"low in the northwest and high in the southeast".Over the past three decades,the overall improvement was significant,with improved areas accounting for 25.35%and degraded areas for 10.63%.Areas with vegetation improvement saw an increase of over 30%in soil retention rates,while areas with high vegetation cover(FVC>0.7)achieved soil retention rates exceeding 50 t/(hm2·a).Topographic factors(slope,terrain relief)and climatic factors(precipitation,sunshine)were the core driving factors of soil and water conservation services,with slope having the strongest explanatory power(q=0.449).Significant interactions between natural and social factors were observed,and key suitability intervals of vegetation and soil and water conservation services were identified.[Conclusion]Vegetation cover in the Kuye River Basin is significantly positively correlated with soil and water conservation services.Slope,terrain relief,and precipitation are the core driving factors of soil and water conservation services,with optimal ranges(such as slope 7.69°～12.53°,precipitation 540～584 mm)identified.关键词
植被覆盖变化/窟野河流域,InVEST模型/地理探测器/水土保持服务/阈值识别Key words
vegetation cover change/Kuye River Basin/InVEST model/geodetector/soil and water conservation services/threshold identification分类
资源环境引用本文复制引用
Ning Jiajun,Yang Zhenqi,Guo Jianying..窟野河流域植被覆盖及水土保持功能的时空演变及其驱动机制[J].水土保持研究,2026,33(1):90-100,110,12.基金项目
国家重点研发计划项目(2023YFF1305104) （2023YFF1305104）
内蒙古自治区"英才兴蒙"工程青年拔尖人才专项培养计划项目 （）
内蒙古自治区"科技兴蒙"行动重点专项(2022EEDSKJXM003) （2022EEDSKJXM003）
鄂尔多斯市水利科技项目"重点水土流失区生态系统(西黑岱流域)水土保持综合整治技术集成效益评估项目"(MK22205031) （西黑岱流域）
鄂尔多斯市水利科技项目"水土保持对十大孔兑河流健康影响"(MK20220515) （MK20220515）
