Quantitative Evaluation on Wetland Ecosystem Service Function in Chao Lake

巢湖湿地生态系统服务功能价值定量评估研究（英文）

[Objective] The aim was to better reveal the type of ecosystem service function of wetlands in Chao Lake and provide references for protection and man- agement, restoration and rebuilding of local wetland ecosystem. [Method] The val- ues of ecosystem function was estimated by market value method, opportunity cost approach, replacement cost method, shadow engineering approach, travel cost method, hedonic pricing method and contingent value method. [Result] With wetland ecosystem service function value totals 4.968 billion yuan, the value of eco-environ- ment regulation and maintenance was the highest, followed by the value of cultural and social function. The value of material production was the least. The values of sub-functions can be concluded by comparison of service function va}ue and pro- portions, as follows： flood mitigation 〉water purification 〉water conservation 〉 tourism＆leisure〉material production〉scientific research and education〉water supply〉 biodiversity maintenance〉regulation on atmosphere constituents. [Conclusion] The re- search performed quantitative evaluations on ecosystem service function values of wetlands in Chao Lake and is of significance for specific development and protec- tion of local wetlands.

[目的]通过直观地揭示巢湖湿地生态系统服务功能类型和不同服务功能的经济价值,对巢湖湿地生态系统的保护与管理、恢复与重建提供理论依据与实践参考。[方法]运用市场价值法、碳税法、造林成本法、影子工程法等方法对巢湖湿地生态系统生态服务功能的价值进行定量估算。[结果]巢湖湿地生态系统服务功能总价值为49.68亿元人民币,其中生态环境调节与维护功能的价值最大,其次是文化社会功能价值,物质生产功能价值最小。通过比较各子生态系统服务功能价值及其所占比例得到各子功能价值量大小依次为:调蓄洪水>水质净化>涵养水源>旅游休闲>物质生产>科研教育>供水>维护生物多样性>大气组分调节。[结论]该研究首次定量评估了巢湖湿地生态系统的服务功能价值,对有针对性的开发和保护巢湖湿地具有重要意义。