Li Jing, Zhang Ping-Yu, Li He, Su Fei
Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China.
Ying Yong Sheng Tai Xue Bao. 2011 Dec;22(12):3279-84.
This paper established an index system for the assessment of eco-environmental vulnerability in Daqing City, from the aspects of sensitivity and response capability, and aiming at the major disturbances from crude oil exploitation and production activities. The improved entropy method was adopted to evaluate the weights of the indices, and the spatial patterns of eco-environment vulnerability in the City were analyzed, according to the model functions. In 2009, the more sensitive areas of the eco-environment in the City were mainly concentrated in the intensive regions of crude oil exploitation, processing, and petrochemical industry, and the ecological problems such as land salinization were the secondary causes for this higher sensitivity. The overall response capability of the eco-environment to unfavorable disturbances was relatively high, which reduced the eco-environment vulnerability to some extent. There was a great spatial difference in the eco-environment vulnerability in the City. The vulnerability was comparatively higher in the districts of Honggang, Sartu and Longfeng, with the degree being 0.80, 0.71 and 0.68, but lower in Ranghulu and Datong, with the degree of 0.20 and 0.04, respectively.
本文从敏感性和响应能力方面，针对原油开采与生产活动产生的主要干扰，构建了大庆市生态环境脆弱性评价指标体系。采用改进熵权法计算各指标权重，并依据模型函数分析了该市生态环境脆弱性的空间格局。2009年，该市生态环境敏感性较高的区域主要集中在原油开采、加工及石化产业密集区，土地盐碱化等生态问题是造成较高敏感性的次要原因。生态环境对不利干扰的整体响应能力相对较高，在一定程度上降低了生态环境脆弱性。该市生态环境脆弱性存在较大的空间差异。红岗区、萨尔图区和龙凤区的脆弱性相对较高，程度分别为0.80、0.71和0.68，而让胡路区和大同区的脆弱性较低，程度分别为0.20和0.04。
