The land use change influences the ecological service value of basin greatly. Based on the China ecosystem service equivalent scale developed by Xie Gaodi,this paper improved and perfected Yanhe basin ecosystem service equivalent scale combined with the change of Yanhe basin land use and the characteristic of ecosystem service,and estimated ecological service value based on the land use data in 1990,2000 and 2006. The results indicated that ecological service value of Yanhe basin is 5.72 billion Yuan higher...
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