干旱区生态环境知识资源中心(Arid): 塔里木河干流生态风险评价

Arid

	塔里木河干流生态风险评价
其他题名	Ecological Risk Assessment of Ecosystems in the Mainstream Area of the Tarim River
	薛英; 王让会; 张慧芝; 李锦; 徐晓芳; 林毅
ISSN	1001-4675
出版年	2008
卷号	25 期号:4 页码:562-567
中文摘要	干旱区内陆河流域的自然地理背景决定了生态的脆弱性，流域生态系统孕含着一定的风险性。从塔里木河干流自然条件和人为干扰状况出发，建立塔里木河干流生态风险评价指标体系，并运用AHP-模糊综合评价方法构建了塔里木河干流生态风险评价模型。在此基础上，通过加权平均方法对模糊评价结果进行处理，借助ARC-GIS的地统计分析工具，生成风险评价结果图。研究表明：塔里木河干流的生态风险分布具有明显的空间差异性。并且。生态风险指数由上游的2．5增加为下游的4.1，生态风险大的区域主要分布在干流下游地区。加大对生态风险敏感因素的控制与管理力度是降低生态风险与维持生态稳定的重要途径。
英文摘要	Entironment fragility is mainly affected by the physiogeographic background in the continental drainage basins in arid areas, and the ecosystems in such drainage basins have a certain risk. By developing an evaluation index system and using AHP-fuzzy comprehensive evaluation, in this paper an ecological risk assessment of ecosystems in the mainstream area of the Tarim River is carried out based on considering the natural conditions and human disturbance. On which the fuzzy comprehensive evaluation results are processed with weighted average, and a map of ecological risk assessment results is charted by applying the Geostatistical Analysis of ARCGIS. The study result shows that the spatial difference of the ecological risk in the mainstream area of the Tarim River is significant, the ecological risk index is increased from 2.5 in the upper reaches to 4.1 in the lower reaches of mainstream of the Tarim River, and the areas with high ecological risk are mainly distributed in the lower reaches of mainstream of the Tarim River. It is an important way for reducing the ecological risk and maintaining the ecological stabilization to increase the control and management of the sensitive factors of ecological risk, that means to rationally redistribute and effectively utilize water resources, make the existing water conservancy projects into full play, build up the perfect monitoring and early-warning systems of ecological risk, develop the ecological compensation system, and enhance the property right of natural resources.
中文关键词	生态风险 ; 模糊综合评价 ; 生态补偿 ; 塔里木河
英文关键词	ecological risk mainstream of the Tarim River fuzzy comprehensive evaluation ecological compensation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3352923
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222340
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	薛英,王让会,张慧芝,等. 塔里木河干流生态风险评价[J]. 中国科学院新疆生态与地理研究所,2008,25(4):562-567.
APA	薛英,王让会,张慧芝,李锦,徐晓芳,&林毅.(2008).塔里木河干流生态风险评价.,25(4),562-567.
MLA	薛英,et al."塔里木河干流生态风险评价".25.4(2008):562-567.