城市复合生态系统健康评价方法在生态城市研究中的应用

Application of Method of Health Evaluation of Urban Compound Ecosystem to the Study of Ecourban

针对当前全国方兴未艾的生态城市建设,将城市生态系统健康理论引入生态城市研究当中,根据相关研究构建了城市复合生态系统健康评价模型,作为评判生态城市建设程度的标准;利用熵权法确定模型中的多指标权重,避免了采用主观赋值法可能带来的臆断性;将评价模型应用于南阳市生态城市规划实例中,以定量的方式描述了南阳市以及河南省其他城市各子系统的发展水平、子系统间的协调程度以及复合生态系统的整体健康状况,为南阳市生态城市建设提供了科学的决策依据。

The paper introduces the theory of health of urban ecosystem into the study of ecourban in connection of national ecourban building which is now in the ascendant,builds a health evaluation model of urban compound ecosystem according to related studies,using as the standard for judging the level of ecourban building; decides the multi-index weight of the model by using the method of entropy right,avoiding a subjective judgment which might be caused by the method of subjective evaluation and;applies the model into living examples of ecourban planning of Nanyang City,describes the development level of each sub-system of Nanyang City and other cities of Henan Province,the coordination level among each sub-system and the overall health statement of compound ecosystem in a quantitative way,providing scientific decision-making basis for ecourban building of Nanyang City.