分析了城市生态系统的功能，讨论了城市生态环境评价的概念和内涵。
The function of city ecosystem is analyzed, and the conception about urban ecological environment evaluation is discussed.
针对传统评价方法中量化指标丢失信息的情况，提出应用物元模型进行城市生态系统健康评价。
Aiming at the complexion in which the information lost in index ration, the matter element method was put forward to carry on urban ecosystem health evaluation.
确定了城市生态系统健康评价指标体系，提出了基于属性理论的城市生态系统健康属性综合评价模型。
This paper confirms urban ecosystem health assessment indicators system, and establishes attribute synthetic assessment model and methods based on the attribute theory.
采用基于熵权的模糊数学评价方法，借助于相对隶属度的概念评价了北京城市生态系统在某一特定时间内（1996~2003年）的相对健康状态。
This research assessed the health conditions of the Beijing urban ecosystem from 1996 to 2003 through use of a fuzzy logic approach on entropy weight.
从生态系统健康的内涵出发，依据城市生态系统的特殊性，建立了城市生态系统健康评价指标体系；
Starting from the content of ecosystem health, based on the specificity of urban ecosystems, have set up the health evaluation index system of urban ecosystem;
从生态系统健康的内涵出发，依据城市生态系统的特殊性，建立了城市生态系统健康评价指标体系；
Starting from the content of ecosystem health, based on the specificity of urban ecosystems, have set up the health evaluation index system of urban ecosystem;
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