城市生态系统是一个复合人工生态系统,城市生态适宜度是区域社会经济发展的重要体现。笔者针对城市发展过程中的“逆生态”问题,从主城区资源消耗与支撑、主城区环境状况与污染负荷、主城区效率效益、主城区社会保障及福利和市域生态支撑5个方面提出了城市生态适宜度评价指标体系,在此基础上,采用模糊推理与模式识别的方法构建了城市生态适宜度评价模型,并利用该模型对扬州市1997—2007年的城市生态适宜度进行了评价。结果表明，1997—2007年扬州市城市生态适宜度为0437～0634,处在一般和良好之间,且适宜度值总体呈上升趋势。
Abstract
The urban ecosystem is a composite artificial ecosystem, and the urban ecological suitability is a significant symbol of development of economy in regional society. This paper presents the indicator system of urban ecosystem suitability from the five aspects including resource degradation and supporting capacity of main city zone, environmental condition and pollution load of main city zone, efficiency benefits of main city zone, social security and social welfare of main city zone, and ecological support of city zone. In allusion to the “reverse ecology” issues in the process of development of cities. On that basis, fuzzy inference and pattern recognition methods were adopted to set up a model of evaluation for urban ecosystem suitability and utilized this model to evaluate the urban ecosystem suitability of Yangzhou during 1997—2007. It was found that the evaluation value of Yangzhou city during 1997—2007 was between 0.437—0.634 which was in normal and good range, and the overall urban ecosystem suitability appears rising.
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基金
收稿日期：2011-04-19修回日期：2011-05-04 基金项目：“十一五”国家科技支撑计划(2007BAC16B04) 作者简介：马顺圣(1972—),博士生。*卞新民(通信作者),教授。Email: bjxlml@163.com。
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