基于空间统计分析方法的生态服务价值评价研究

Research on ecological asset evaluation based on spatial statistical analysis methods

生态服务价值核算对建立可持续发展的土地利用模式至关重要。文中基于地理国情普查试点成果,进行了生态服务价值评估,并在此基础上利用格网分析、Spline插值、Moran’s I、Getis-Ord Gi*等空间统计分析方法,对浙江省德清县生态服务价值进行分析评价。研究结果表明:德清县生态服务价值整体上呈现出集聚现象;单位面积生态服务价值热点主要集中在对河口水库、下渚湖湿地和东部河网密集区等。这些区域直接影响德清县的整体生态环境水平,需要进行重点生态保护。

It is very important to assess the ecosystem assets {or establishing a pattern of land use of sustainable development. It is the first one to valuate the ecological assets based on achievement of census of national geographical condition, and then some spatial analysis are made to analysis and evaluate the ecological assets quantitatively and spatially, such as grid analysis, spline interpolation, Moran^s I, Getis- Ord Gi＂ , etc. The results shows that ecological assets of Deqing overall presents in clusters. The result also shows that hot spots of dense of ecological assets scatter around Duihekou Reservoir, Xiazhuhu Wetland and eastern brooky areas, and these areas have a huge impact on ecological environment of Deqing, where should be protected well.