榆林市压力-状态-响应模型的生态安全评价  

Ecological security evaluation of Yulin city by pressure-state-response model

作　　者：南宁[1] 梅凡民[1] 周昊峰 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《西安工程大学学报》2016年第1期47-51,共5页Journal of Xi’an Polytechnic University

基　　金：陕西省教育厅科研计划资助项目(14JK1291)

摘　　要：以榆林市为例,基于压力-状态-响应概念模型,根据国家和地方统计数据,利用功效评分法和变异系数法等数据处理方法,对榆林市（2001-2005年）生态安全质量状况进行了综合评价。结果表明,榆林生态安全综合指数从2001年的30增加到2005年的78,生态环境经历了不安全状态—临界安全状态—理想安全状态的历史演变。从3个子系统看,对榆林市生态安全的影响依次为：系统压力〉系统状态〉系统响应,且通过一定手段调节3个子系统之间的关系,可实现可持续发展。Based on the pressure-state-response model, using the variation coefficient method and effectiveness factor method,the ecological security situation for Yulin region from 2001 to 2005 is quantitatively assessed city according to statistics from both state and local level. The results indicate that the ecological security integrate index of Yulin city increased from 30 in 2001 to 78 in 2005, and the ecological environment undergoes unsafe, critical safe, and relative safe status. Among the three subsystems, system pressure is the most influenfial factor in the ecological security of Yulin, system state the less,system response the least. The sustainable development can be thus achieved through regulating the interaction among the three subsystems.

关 键 词：生态安全 压力-状态-响应模型 生态安全综合指数 

分 类 号：X826[环境科学与工程—环境工程]