基于土地利用的喀斯特地区生态系统服务功能价值评估——以贵州省为例

Assessment of Karst Regional Ecosystem Service Functions Based on Land Use Change:A Case Study in Guizhou,China

为探讨喀斯特地区生态系统服务功能价值特征,对贵州省生态系统服务功能价值进行评估,结果表明生态系统服务功能价值在2005、2010、2020年分别为1 610.43亿、2 357.86亿、4 328.89亿元.贵州省各类生态系统服务功能单价顺序为湿地>水体>森林>草地>农田>荒漠,其中湿地生态系统是荒漠生态系统服务功能价值的149.31倍.2005～2020年贵州省生态服务功能价值结构和土地利用结构以森林生态系统占绝对优势,各类型生态系统服务功能价值顺序为森林>农田>草地>水体>荒漠>湿地,各类型生态系统面积大小顺序为森林>农田>荒漠>草地>水体>湿地.2005、2010、2020年贵州省单位面积生态系统服务功能价值分别为9 142、13 385、24 573元/hm2.根据至2020年的土地利用规划,贵州省生态系统服务功能将持续增加.

In order to assess the value of the ecosystem service functions in Karst mountainous region in Guizhou,China,the economic value of the Karst ecosystem service functions was estimated in the region.The economic values of ecosystem service functions in 2005,2010,and 2020 were 161.04×109,235.79×109,and 432.89×109 Yuan（RMB）,respectively.The unit price of the service functions of each ecosystem in the region was in the order： wetlandwater bodyforestgrasslandfarmlanddesert.The value of wetland ecosystem service functions was 149.31 times higher than that of desert.The forest ecosystem was absolutely predominant both in the ecosystem service value and land use structure.The service function value of each ecosystem was in the order： forestfarmlandgrasslandwater bodydesertwetland.The area of each ecosystem was： forestfarmlanddesertgrasslandwater bodywetland.In 2005,2010 and 2020,the ecosystem service function values per unit area in Guizhou was and will be 9 142,13 385 and 24 573 Yuan/hm2.According to the 2005～2020 Land Use Planning of Guizhou,the value of ecosystem service functions will continue to increase.