秦淮河流域水源涵养与水质净化服务空间分布特征

Spatial distribution characteristics of water resource conservation and water purification services in the Qinhuai River Basin

为揭示秦淮河流域不同生态系统的水源涵养和水质净化功能的空间差异,采用水量平衡法、污染物滞留量法计算该流域2020年的水源涵养和水质净化能力,并借助ArcGIS平台进行空间等级划分,从而得到秦淮河流域水源涵养和水质净化的空间分布特征。结果表明:秦淮河流域水源涵养服务大多处于中低水平和中水平,水质净化服务也主要处于中低水平和中水平。

In order to reveal the spatial differences in water conservation and water purification functions of different ecosystems in the Qinhuai River Basin,the water resource conservation and water purification capacity of the basin in 2020 was calculated by the water balance method and the pollutant retention method,and the spatial grading was divided with the help of ArcGIS platform,so as to obtain the spatial distribution characteristics of water resource conservation and water purification in the Qinhuai River Basin.The results show that most of the water resource conservation services in the Qinhuai River Basin are at the middle-low level and the middle level,and water purification services are also mainly at the middle-low level and the middle level.