基于PSR模型的梅州市生态风险评价  

Evaluation for Ecological Risk of Meizhou Based on PSR Model

作　　者：程洁如[1] 柯秋怡 

机构地区：[1]嘉应学院地理科学与旅游管理学院,广东梅州514015

出　　处：《嘉应学院学报》2016年第8期60-64,共5页Journal of Jiaying University

基　　金：梅州市产业技术研究与开发资金计划项目(313C0101);广东省自然科学基金项目(S2012010011142)

摘　　要：进行城市生态风险评价研究是城市风险管理、城市可持续发展的前提.在PSR模型框架下构建城市生态风险综合评价指标体系,运用主成分分析法和K-means聚类分析法研究梅州市生态环境状况,计算城市总体生态风险度.结果发现：2005～2014的梅州市生态风险度总体趋高,环境质量不断下降,生态安全问题越发突出.以此给城市未来发展敲响警钟,在加快推进经济社会发展步伐的同时,应制定相应的生态保护政策,加大改善环境质量的投资力度,从而降低城市生态系统的风险程度.To research urban ecological risk assessment is the premise of urban risk management and sustainable development. In the PSR framework model,establishing the comprehensive evaluation index sign system of the urban ecological risk,utilizing the componential analysis and K- means clustering,the article researches the eco- environmental status of Meizhou,calculates the results of ecological risk degree. It has been found out that from the year 2005 to 2014,the ecological risk values overall rising,the environmental quality continuously declined,ecological problems became more prominent. The result is just to warn us that,as trying to develop the economy,we should make the corresponding ecological protection policy,increase the investment of protecting the environment so as to reduce the city ecosystem risk degree.

关 键 词：生态风险评价 PSR模型 主成分分析 K-means聚类分析 梅州市. 

分 类 号：F323.6[经济管理—产业经济] F127