基于耗散结构理论的城市生态水平评价研究——以武汉市为例  

EVALUATION OF URBAN ECOLOGICAL LEVEL BASED ON DISSIPATIVE STRUCTURE THEORY——A CASE STUDY IN WUHAN

作　　者：陈雷[1] 周敬宣[1] 李湘梅[1] 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《长江流域资源与环境》2007年第6期786-790,共5页Resources and Environment in the Yangtze Basin

摘　　要：城市是一个经济-社会-自然复合系统，城市生态环境是城市经济社会持续发展的支持系统。基于耗散结构理论和信息熵原理，通过计算生态经济熵、生态功能熵和城市生态系统总熵变，分析城市生态系统的演化发展规律；利用综合发展度和协调发展度两个指数，建立城市生态水平评价的定量模型。以武汉市1988～2004年城市生态系统发展为例，评价结果表明：（1）武汉城市生态系统的生态经济熵、生态功能熵和城市生态系统总熵变均呈现出下降趋势，城市健康、有序水平不断提高；（2）武汉城市生态系统在经历了1988～1991年停滞发展期后，从1992年开始，生态综合发展水平逐年提升，协调发展水平在不断增加，近10年来都保持在基本协调发展水平。City is a compound system of economy-society-nature,and the urban environment is a supporting system for the sustainable development of city. Based on dissipative structure theory and Shannon entropy principle,with the calculation of eco-economy entropy, eco-function entropy and urban ecosystem entropy, this paper analyzed the rule of dynamic evolvement in urban ecosystem. A quantitative model of urban eco- logical evaluation has been set up by the indexes of integrated development degree and harmony development degree. Taking Wuhan＇s urban ecosystem from 1988 to 2004 as an example,it is found that the eco- economy entropy,eco-function entropy and urban ecological entropy of Wuhan decreased with the losing of time,and the increase of urban health level;and that after a stagnant development of Wuhan＇s urban eco- system from 1988 to 1991 ,the degree of ecological integrated development rose annually,and the harmony development level improved continuously. A basic harmony development level has been kept for about ten years of time.

关 键 词：耗散结构 信息熵 生态水平评价 武汉市 

分 类 号：F270[经济管理—企业管理]