威宁草海湿地区域生态服务功能价值评估

The Valuation of the Ecological Service Functions in Caohai Wetland Region in Weining County

应用ArcGIS软件采集草海湿地区域的空间数据,利用2011年威宁县统计数据、土地利用变更数据和实调数据,采用生态服务功能相关研究方法,估算威宁草海湿地区域生态服务功能价值,同时分析生态服务价值构成差异。结果表明,草海湿地区域单位面积生态服务功能价值为43 910.23元/hm2,在我国西南地区属高值区;各类生态服务功能构成中,生态多样性保护、废物处理、水源涵养服务价值所占比例较高,说明湿地生物多样性保育和湿地净化、水源涵养功能,是草海湿地区域生态经济可持续发展的关键。

Collecting the spatial data of Caohai wetland region with the software of ArcGIS, and using the statistical data in 2011, land use change data and actual survey data in Weining County, using the relevant research methods of the ecological functions, the value of ecological service functions in Caohai wetland region was estimated. The difference constitute of the value of ecosystem services was analyzed. The results showed that the value of the ecosystem service functions is 43 910.23 yuan/hm2 per unit area in Caohai wetland region, which is a high value area in Southwest China. In the ecological service function constitute, the proportion of ecological diversity protection, wastes treatment and water conservation is higher, which indicates that the conservation of biodiversity in wetland, wetland purification, and the conservation func-tion of water are the key to the sustainable development of ecological economy in Caohai wetland region.