小浪底水库库区流域生态脆弱性研究

Study on the vulnerability of ecological environment in xiaolangdi reservoir basin

从小浪底水库库区流域生态环境状况入手,研究了库区8县、市生态环境脆弱性5个方面的影响因素,确定了13个评价指标。利用层次分析法,得到评价指标对应的相对权重,并通过一定的评价模型得出各个评价单元相应的生态环境脆弱性量化值。评价结果将其生态环境分为5类:极端脆弱区(济源市)、严重脆弱区(陕县、新安、夏县和平陆)、中度脆弱区、轻度脆弱区(垣曲市)以及潜在脆弱区(渑池和孟津)。生态脆弱性指数排序为济源>陕县>新安>夏县(平陆)>垣曲>孟津>渑池。

Based on the objective conditions which form Xiaolangdi reservoir basin ecological environment, this paper studied the impact of the five factors on the ecological environment vulnerability in the 8 counties or county-level cities of Xiaolangdi reservoir basin and determined 13 evaluation indicators.The relative weights of corresponding evaluation of the 13 indicators were calculated by the analytic hierarchy process, and through the evaluation model,all quantitative ecological environment vulnerability of the evaluation units was obtained.According to the evaluation results,the ecological environment of Xiaolangdi reservoir was divided into five groups：extreme frail area（Jiyuan city）,serious frail area（Shanxian,Xinan, Xiaxian and Pinglu country）,medium frail area,mild frail area（Yuanqu city） and potential frail area（Mianchi and Mengjin County）,and the Xiaolangdi reservoir basin ecological environment frail comprehensive evolution map was drawn.Finally,the ecological environment management measure of Xiaolangdi reservoir basin was proposed in view of the evaluation results