新疆艾比湖生态脆弱区生态服务价值对土地利用变化的响应

以干旱区生态脆弱区新疆艾比湖区域为研究对象,运用GIS手段和生态经济学的方法,采用Costanza生态系统服务价值计算公式,并参照谢高地等人的中国陆地生态系统服务单位面积价值,探讨了艾比湖区域1990—2007年土地利用和生态系统服务价值的变化特征。结果表明:1990—2007年间,艾比湖区域土地利用处于发展阶段,土地利用程度呈增大趋势;1990,2001和2007年艾比湖区域生态服务价值分别为53.63,63.01和56.96亿元,呈波动性变化;研究区生态系统的服务性功能远大于生产性功能。2001—2007年间研究区生态系统服务价值下降速度较快,作为艾比湖湿地自然保护区的核心部分,生态系统服务价值具有退化的趋势,需要加强管理,控制人类活动的影响强度。

Response of Ecological Services Value to Land Use Change in the Ebinur Lake Region,Xinjiang

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 Ebinur Lake region during 1990—2007.Results show that the land use in the Ebinur Lake region was at its developing stage from 1990 to 2007,especially between 2001and 2007.The magnitude of land use exhibited an increasing trend,and meanwhile the ecological services value was 53.63×108,63.01×108 and 56.96×108 Yuan in 1990,2001 and 2007,showed a volatility rises trend.Water area,farmland and grass land contributed to the overall increasing eco-services change dominantly.As the core part of Ebinur Lake wetland nature reserve,the ecological environment in the Ebinur Lake region has been on the verge of degradation.The ecological environmental protection should be further enhanced and human activities must be controlled effectively.