皖江地区湿地生态服务价值评估

Evaluation of Wetlands Ecosystem Services Value of the Yangtse River Region in Anhui Province

皖江地区湿地是长江中下游流域的重要湿地,也是安徽省水网集中分布区,河流水系众多、湖泊库塘星罗棋布。【研究目的】通过对皖江地区湿地生态服务价值的估算,期望为有关部门进行区域规划和合理利用湿地资源提供科学依据;【方法】在调查和资料收集的基础上,参考Costanza等提出的17项生态系统服务功能,利用市场价值法、资产价值法、影子工程法、旅行费用法等评估方法,对皖江地区湿地9项生态服务价值进行了评估。【结果】表明:皖江地区湿地生态服务总价值为1061.21亿元/a,其中固碳价值最高,达434.22亿元/a,其次是水文调节价值、物质生产价值和净化环境价值,分别达到220.75亿元/a、163.50亿元/a和108.13亿元/a,再次是释放O2价值、供水蓄水价值和休闲旅游价值,最小的是文化科研和栖息地价值;皖江地区湿地直接价值214.84亿元/a,间接价值846.37亿元/a,间接价值远远大于直接价值。【结论】并提出了湿地的固碳功能对于全球气候变暖有很大的影响,应合理开发利用和保护湿地资源。

The wetlands of the Yangtze Region in Anhui Province are very important marshes,which located in the middle and lower reaches of the Yangtze River.This Area is also a distribution of concentrated water network with lots of rivers,lakes and reservoirs.[OBJECTIVE]Through estimating wetlands ecosystem services value of this region,expect to provide scientific reference for the relevant sector regional planning and rational using of wetland resource;[METHOD]Based on the investigation and data collection,reference 17 items of valuating parameters and methods proposed by Costanza and others（1997） ,evaluated 9 items of ecosystem services value of the wetlands of the Yangtze Region in Anhui using the market value approach,assets value method,shadow project method and travel cost method and so on.[RESULTS]The results show that the annual value of the wetlands ecosystem service is about 106.12 billion Yuan RMB,which the carbon storage value is the highest with 43.42 billion RMB;secondly is the hydrological conditioning value,material production value and cleaning up the environment value,respectively reached 22.08 billion RMB,16.35 billon RMB and 10.81 billon RMB;and thirdly is the release oxygen value,water supply value and leisure tourism value;the last is cultural value and habitat value;the wetland direct value is about 21.48 billon RMB and indirect value is about 84.64 billon RMB,which indirect value is far more than direct value.[CONCLUSION]At the last present that wetland carbon sequestration has great effect to the global climate warming,human should develop rationally and protect wetland resource.