塔里木河流域生态安全及其评价研究

Tarim River Basin Ecological Security and Evaluation Study

在全面了解国内外有关生态安全研究现状的基础上,运用层次分析法和专家咨询等方法,构建了塔里木河流域生态安全评价指标体系并确定了指标权重,比较分析了塔里木河流域不同区段生态安全状况。结果表明,从20世纪60年代到21世纪,流域生态安全水平呈逐渐增高趋势,水资源、土壤、植被对流域生态安全贡献最大,气象对生态安全贡献较小,人类活动对下游生态安全影响较强,社会经济发展水平几乎没有贡献。对塔里木河流域生态安全进行评价,可为流域生态综合治理提供科学依据。

In the comprehensive understanding of domestic and foreign relevant ecological security based on the present research,we used analytic hierarchy process,expert consultation method and other methods to construct the ecological security evaluating index system for the Tarim River Basin and determine the index weight.Besides,the ecological security situations in various reaches of the Tarim River Basin were compared and analyzed.The results indicate that basin ecological security level has gradually got higher from the 1960s to the 21st century.Water,soil and vegetation make the largest contribution to the basin ecological security,the meteorology makes less contribution,the human activities have a great influence on the downstream ecological security,and the socio-economic development level has no contribution.