长江三峡库区(重庆段)沿江区域生态功能区划

Studies on the Ecological Function Regionalization in the Three Gorges Reservoir Area:The Case of Chongqing Section

生态功能区划是实施区域生态环境保护建设和科学管理的基础.以长江三峡库区(重庆段)11 000 km2的沿江区域为研究对象,建立了区域生态敏感度和生态服务功能重要性评价模型,在ArcG IS软件平台下构建了评价因子数据库,并借助其空间叠置分析功能进行了定量评价,在此基础上结合对区域生态环境特征、生态系统类型与过程等要素的定性分析,将研究区域分为3个一级生态区、11个二级生态亚区以及34个三级生态功能区,并提出了主要分区相应的保护与开发建设对策.

Ecological function regionalization is the foundation of the scientific management for the regional eco-environmental conservation and construction.The Three Gorges Reservoir Area of the Yangtze River(Chongqing section),which covers an area about 11 000 km^2,was taken as a case.By means of the ArcGIS database platform and its spatial analysis function,the regional ecological sensitivity(measured with RESI) and ecosystem service importance(measured with RESII) assessment were performed according to the estab...