基于熵权物元分析法的城市生态安全水平动态评价——以武汉市为例  

Dynamic Assessment of Urban Ecological Security Level on the Basis of Entropy Weight and Matter Element Model ——Taking the Case of Wuhan

作　　者：李德胜[1] 吕炎[1] 胡学东[1] 

机构地区：[1]中国地质大学(武汉)公共管理学院,湖北武汉430074

出　　处：《中国国土资源经济》2015年第10期61-65,共5页Natural Resource Economics of China

摘　　要：以武汉市为研究对象,利用压力——状态——响应概念模型,构建城市生态安全评价指标体系,采用熵权法确定权重,运用物元分析法对武汉市生态安全水平进行了分析和评价,反映武汉市2006-2013年的生态安全水平动态变化情况。结果表明:2006-2013年武汉市城市生态安全水平经历了从"比较安全"跃升为"理想安全"的变化过程,总体状况趋于良好;武汉市生态安全水平并不稳定,城市生态系统仍受到多个不利因素的胁迫,若不及时加以限制,生态安全等级有滑落的风险;基于熵权物元模型的评价方法,不仅能够得到综合质量信息,还能揭示单指标的变化趋势,得出的生态安全评价结果较为切合实际,为今后针对性地进行城市生态建设和维护提供参考。Regarding Wuhan as a research object, on the basis of Pressure-State-Response Model, this paper establishes an evaluation index system for urban ecologic security. Through determining weight by entropy-weighing method, and analyzing and evaluating ecological security level of Wuhan by the matter element analysis method; the dynamic changes of ecological security level between 2006 and 2013 in Wuhan has been refl ected. The results show that： the city of Wuhan has undergone a change process from 2006 to 2013. This change process is from ＂relatively safe＂ up to ＂ideal security＂; and general situation is tending towards good. However, we must have a keen awareness of the fact that ecological security level of Wuhan has yet to be considered stable, and urban ecosystems have been forced by multiple adverse factors. In the light of this, this paper points out that by using evaluation method based on entropy weight and matter element model, we can not only get comprehensive quality information, but also reveal the change trend of single index. In this way, we can get more realistic result of ecological security evaluation, which will provide reference for urban ecological construction and maintenance in the future.

关 键 词：城市生态安全 动态变化 熵权法 物元分析 武汉 

分 类 号：F062.2[经济管理—政治经济学] F062.1