一种城市生态系统健康评价方法及其应用

利用集对分析方法,将评价城市生态系统健康状况的多个指标系统合成一个与最优评价集的相对贴近度,用来描述城市生态系统健康状况.运用集对分析方法,以北京、大连、上海、武汉、厦门、广州等城市为例,对1995～2003年间的城市生态系统健康进行了评价.结果表明,不同时期各城市生态系统健康状况排序有所变化,但厦门和广州一直名列前茅.此外,对北京1992～2003年间城市生态系统健康状况的变化情况进行了具体分析,结果显示,北京城市生态系统健康状况随着时间的推移而不断改善.

A kind of method and its application for urban ecosystem health assessment

Set Pair Analysis Method(SPAM) was employed to assess the health of urban ecosystems. This assessment method led to dialectic and actual results because it objectively treats and systematically estimates the uncertainty of urban system. Multiple health indexes of urban ecosystems can be combined to form a relative-close-degree of urban ecosystem health to the optimal evaluation set, through SPAM. The urban ecosystem health of Beijing, Dalian, Shanghai, Wuhan, Xiamen and Guangzhou from 1995 to 2003 were evaluated by using SPAM. It can be concluded that the urban ecosystem health of Xiamen and Guangzhou city was the best, while the order of the rest cities' ecosystem health often changed with time. Moreover, the change of Beijing's urban ecosystem health from 1992 to 2003 was analyzed. It showed that Beijing urban ecosystem health had increased in the period.