广西科学院学报2026，Vol.42Issue(2)：167-177,11.DOI:10.13657/j.cnki.gxkxyxb.20260819.005
基于InVEST模型的南宁市水源涵养服务时空变化与驱动因素分析
Analysis of Spatiotemporal Changes and Driving Factors of Wa-ter Source Conservation Services in Nanning City Based on the InVEST Model
摘要
Abstract
This study explores the spatiotemporal evolution patterns of water conservation services in Nanning City and their underlying driving mechanisms,so as to provide a scientific basis for the rational utilization and sustainable development of water resources in Nanning City.Based on the InVEST model,this study fully considers factors including climate,topography,vegetation,soil and land use.Taking grids as research units,the water balance method and spatial autocorrelation analysis were adopted to quantitatively evaluate and an-alyze water conservation services and their spatiotemporal variation characteristics in Nanning City from 2000 to 2020.Furthermore,the key driving factors governing variations in water conservation capacity was identi-fied by the geodetector model.The results showed that the water conservation capacity of Nanning City ex-hibited obvious inter-annual fluctuations and a degradation trend in 2020.The spatial distribution of water conservation quantity exhibits heterogeneity,showing a pattern of high values in the northern and central re-gions and low values in the southern region,with strong spatial correlation.Land use type was the dominant factor affecting the variation of water conservation capacity,and the interactive effect between land use type and precipitation exerted the strongest explanatory power for the spatial differentiation of water conservation services in Nanning City.Land use change constitutes a key driving factor for the spatiotemporal evolution of water conservation services in Nanning City.It is suggested to optimize land use structure in the process of urbanization,and particularly strengthen the protection and restoration of ecological land to improve the re-gional water conservation capacity.关键词
水源涵养服务/InVEST模型/空间自相关/地理探测器/南宁市Key words
water conservation services/InVEST model/spatial autocorrelation/geographic detector/Nanning City分类
资源环境引用本文复制引用
赖佳洋,胡宝清..基于InVEST模型的南宁市水源涵养服务时空变化与驱动因素分析[J].广西科学院学报,2026,42(2):167-177,11.基金项目
国家自然科学基金项目(42071135)资助. （42071135）
