Response of ecological services value to land use change in the Ili River Basin, Xinjiang, China
新疆伊犁河流域生态服务价值对土地利用变化的响应

By the GIS and ecological economy theory, based on the Costanza method and the Chinese land ecosystem services unit area value proposed by Xie Gaodi, and combined with the sensitivity coefficient analysis, this paper analyzed the variation features of land use change and ecological services value in the Ili River Basin during 1985-2005. Results show that the land use in the Ili River Basin was at its developing stage from 1985 to 2005. The magnitude of land use exhibited an increasing trend, and meanwhile the ecological services value, from 482.83×108 Yuan to 506.44×108 Yuan, also showed an increasing trend. Water area and farmland contributed to the overall increasing eco-services change dominantly, while the decreased grassland eco-services contributed to it negatively. The development of eco-economy in the Ili River Basin has been on the verge of incoordination. The ecological environmental protection should be further enhanced.