Abstract：Ecosystem services and the natural capital stocks that produce them are the Earth's life-supporting system.Valuing the ecosystem services is a necessary condition to make it to be a part of socio-economic system,and an important measure that makes environment and ecosystem protection regarded.Based on the data of land use change extracted by analyzing Landsat TM data,the paper,applying Costanza's method of(evaluating) the world's ecosystem services,evaluates the ecosystem services value and its change caused by land use change in the Dongting Lake area.The result shows that,the acreage of water body and build-up land are increasing,in contrast,that of wetland,forest and cultivated land are decreasing,While the acreage of grassland doesn't change.The ecosystem services value is 8.3159 billion dollars in 1980 and 8.2371 billion dollars.From the year 1980 to the year 2000 the value of the ecosystem services decreased 78.8 million dollars due to land use change.The dominating reason is that wetland area decreased largely.
收稿日期: 2005-03-25
引用本文:
梁守真,李仁东,朱超洪. 洞庭湖区20年生态损益估算[J]. , 2005, 44(3): 0-0.
梁守真,李仁东,朱超洪. Estimation on the ecological degeneration in Dongting Lake area for two decades. , 2005, 44(3): 0-0.
