论文部分内容阅读
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。
On the basis of a comprehensive understanding of the current status of ecological safety research both at home and abroad, this paper constructs the index system of ecological security assessment of Tarim River Basin and determines the index weight by using analytic hierarchy process and expert advice. The ecological characteristics of different sections of the Tarim River Basin Security status. The results show that from the 1960s to the 21st century, the level of ecological security in the watershed is gradually increasing. Water resources, soil and vegetation contribute the most to ecological security of the river basin while meteorological contribution to ecological security is small. The impact of human activities on downstream ecological security Strong, almost no contribution to the level of socio-economic development. The evaluation of ecological security in the Tarim River Basin can provide a scientific basis for comprehensive management of river basin ecology.