Spatial-temporal Evolution and Driving Factors of Ecosystem Service Value in Chaohu Lake Area
Ecosystem service value(ESV)serves as a vital link through which ecological compo-nents,structures,functions,and products benefit humans.Assessing ESV is crucial for comprehensively understanding ecosystem health and functional evolution,as well as guiding regional ecological restora-tion and management.This study quantifies ESV in the circum-Chao Lake region from 2000 to 2020 by analyzing land use change dynamics and employing the value equivalent factor method.It investi-gates the spatial-temporal evolution characteristics of ESV in the region and identifies regional differenc-es and driving mechanisms using geographic probes.The findings reveal that between 2000 and 2020,ESV exhibited a fluctuating trend—initially increasing,followed by a sustained decline.Regulating servic-es comprised the largest portion,with purification services showing notable growth in later years.The ESV of aquatic bodies remained consistently high,whereas that of cultivated land displayed a marked annual decrease.Spatially,high-value zones of ecosystem services were predominantly concentrated around the Chaohu Lake watershed and its immediate surroundings.Over time,areas of reduced value expanded from central urban areas to the peripheries,becoming more dispersed by 2020.Driver analysis indicates that both natural environmental factors and socio-economic forces significantly influence ESV.Key natural factors like vegetation cover and evapotranspiration substantially affect ESV,while increased land use intensity places pressure on these services.The study underscores the imperative of balancing environmental conservation with economic development to inform future land use planning,ecosystem restoration,and ecological security maintenance.
ecosystem service valueland usespace-time changedriving factors
万方数据
维普
