%0 Journal Article
%T An urban ecosystem health assessment method and its application<br>一种城市生态系统健康评价方法及其应用
%A HU Tinglan
%A YANG Zhifeng
%A HE Mengchang
%A ZHAO Yanwei
%A <br>胡廷兰
%A 杨志峰
%A 何孟常
%A 赵彦伟
%J 环境科学学报
%D 2005
%I 
%X A city is a complex system and it is of great importance to study the urban ecological problems with complex ecosystem theory. The concept of health was introduced into urban ecosestem research, which could describe the conditions of system and sub\|systems clearly to provide useful information for decision\|making of the ecological city construction.To express the absoltue and reletive status of systems and sub\|systems,distance index and coordination index were suggested relied on the discussing of concept of urban complex ecosystem health. A health assessment model was established by integrating the distance index with the coordination index. The city's status was quantified with a scale of 5 grades as very healthy, healthy, less healthy, unhealthy and diseased and the grade of each level was established. An indicator system was developed based on the characteristics of urban complex system. An application of this model to Ningbo City revealed the urban ecosystem health state and health heterogeneity. The results indicated that this method could distinguish the complex and spatial properties of urban ecosystem. Thus it could give the appropriate directions of implementing the urban sustainable development strategy by showing the key action fields of ecological city planning and constructing.
%K ecosystem health
%K assessment method
%K urban ecosystem
%K Ningbo city<br>城市生态系统
%K 系统发展
%K 协调
%K 地域空间
%K 决策依据
%K 可持续发展战略
%K 指标体系
%K 健康评价
%K 健康概念
%K 健康状态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=BA367F81D6218B23&yid=2DD7160C83D0ACED&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=1A363081E1FF7014&eid=6826CBE9C80ACB20&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=46&reference_num=12