【作者】 林福柏；

【导师】 曹伟；

【作者基本信息】 厦门大学 ， 环境管理， 2009， 硕士

【摘要】 城市快速发展的今天,生态安全已成为与人类休戚相关的问题。认识和研究城市生态安全机理和评价方法,了解城市生态安全的发展现状及存在问题,提出解决的对策,对城市的可持续发展将会起到重要作用。城市生态安全是生态安全的一个重要方面,目前研究还处于初步阶段,尚无成熟的理论体系和评价方法。本文在借鉴当前国内外相关研究成果的基础上,对城市生态安全的概念、评价方法以及应用等进行了研究。论文分析并总结了国内外生态安全的研究进展,介绍了生态安全的内涵和特征。本文在对福建沿海城市生态安全存在的问题进行系统分析的基础上,运用压力—状态—响应(PSR)框架模型,以福建沿海地级市(不包括市辖县)为研究对象,筛选评价指标,尝试建立适用的城市生态安全评价指标体系,并将城市生态安全水平划分为五个评价等级;选择福建沿海四座城市作为案例城市,分别运用四种综合评价方法(灰色关联度法、模糊综合评价法、主成分分析法和物元可拓综合评价法)对这些城市2007年的生态安全水平进行横向评价;根据评价结果,分析案例城市间生态安全水平的差异,验证评价指标体系的合理性;同时选择评价效果较理想的模糊综合评价法对厦门2003年到2007年的生态安全状况进行纵向评价,分析厦门生态安全水平的变化趋势。根据对案例城市生态安全状况的具体分析,指出制约各市生态安全水平的限制因子,使今后在制定改善城市生态安全的措施时更具有针对性。本文的研究成果可应用于城市生态安全评价的实践,具有一定的指导意义,同时对城市生态安全评价理论的发展有一定的借鉴意义。更多还原

【Abstract】 Under the rapid development of urbanization, ecological security has become a problem closely related human life. Research on the mechanism and assessment methods of urban eco-security, our understanding of the urban eco-security and the development status of the problem and to suggest solutions strategy on the urban sustainable development will play an important role.The urban ecological security is one of the important aspects in ecological security. At the present, such study just begins; therefore, there are no mature theoretical system and assessment methods. Based on the current domestic and foreign research results which are drew on, this paper studies on the basis concept, evaluation methods and applications about the urban eco-security. This paper analyzes and summarizes eco-security of progress on the ecological security of the content and features.Based on systematic analysis of urban ecological security in the coastal cities in Fujian, the article applied pressure-state-response model (PSR), selected assessment indicator, tried to put forward universal assessment indices system of urban eco-security, and divided urban ecological security level into five grades, which are ideal safe, relatively safe, critically safe, not safe and the worst safe. The author selected four coastal cities (Fuzhou city, Xiamen city, Quanzhou city, Zhangzhou city) as example, and used four comprehensive appraisement approaches which were grey relation degree method, fuzzy overall evaluation, and main component analysis and matter-element extension assessment to make horizontal estimation of ecological security level for these cities in 2007. According to the results, analyzed the different of ecological security level among these cities, tested the rationality of evaluation indices system, at the same time, compared these appraisement approaches and selected fuzzy overall evaluation which was better than other appraisement approaches to make vertical estimation of ecological security status for Xiamen city from 2003 to 2007 and analyzed the change trend of ecological security level of Xiamen city. According to the concrete analysis of ecological security status of these cities, found the primary ecological security problem, and then, put forward pertinent countermeasure to solve these problems.This research production can be applied on the practice of urban ecological security assessment, and can be used for reference for the development of the theory of city ecological security assessment.更多还原