为建立针对于岩溶区生态服务价值的评价方法,进而为国家石漠化综合治理工程效益评价提供数据参考,在大量阅读国内外关于岩溶区生态服务价值文献的基础上,以金沙县为例,构建了岩溶地区生态服务价值评估体系,并以林地生态系统、耕地生态系统、草地生态系统和未利用地生态系统为研究对象,选取生产有机质、固碳释氧、保持水土和景观游憩文化4个主导功能来估算区域的生态服务价值.研究结果显示:金沙县2005年到2010年4大生态系统总服务价值平均每平方公里减少1.62万元,总减少量3 607万元(占全县2010年GDP的0.42％).其中生产有机质服务功能减少3 232万元,固碳释氧功能减少2 325万元,保持水土功能增加1 615万元,景观游憩文化功能增加335万元.%In order to set up a method which is suitable for assessing the eco-service value in karst region,and then provide data for assessing the benefit of karst rocky desertification comprehensive management project in the future,the eco-service value evaluation system is put forth in Jinsha County on the basis of former studies at home and abroad.Furthermore,4 dominant functions including organic matter production(SOM),CO2 fixing and O2 release(CFR) and soil and water conservation(SWC)as well as landscape and recreation (LR) are selected for estimating the eco-service value in forest land ecosystem,farmland ecosystem and grassland ecosystem as well as unutilized land ecosystem in Jinsha County.The results show that,from 2005 to 2010,the eco-service value of the four ecosystems in Jinsha County decreased by 16.2 thousand yuan/km2,the total eco service value decreased 36.07 million yuan,which is 0.42 ％ of the GDP of the Jinsha County in 2010,and among them,the function of SOM decreased 32.32 million yuan,the function of CFR decreased 23.25 million yuan,the function of SWC increased 16.15 million yuan,and the function of LR increased 3.35 million yuan.
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