【摘要】 生态安全是整个生态经济系统和可持续发展的生态保障,是区域或国家其它安全的载体和基础。采用经济合作和开发组织(OECD)与联合国环境规划署(UNEP)共同提出P—R—S模式,构建包括资源环境压力、资源环境状态和人文环境响应3个项目23个指标的指标体系,定量估计了中国31个地区的生态安全指数,利用ArcView GIS 3.2进行空间叠合分析和聚类分析,提炼出12个生态安全模式,表明中国各个地区的生态安全呈现多元化。更多还原

【Abstract】 According to the pattern of P-R-S,the authors first constructed an index system of eco-security which consisted of 3 programs and 23 indexes,and then quantitatively evaluated the eco-security index about 31 zones in China.Making spatial overlay analysis and cluster analysis with ArcView GIS 3.2,the authous sorted out the 12 pattrns of eco-security,which showed that the eco-security in different zones of China were various.更多还原