基于P-S-R模型的北京市朝阳区生态安全评价  

Regional ecological security evaluation based on P-S-R model in Chaoyang District,Beijing

作　　者：尚书[1] 岳德鹏[1] 曹睿[1] 张亦超[1] 乌尼图 

机构地区：[1]北京林业大学省部共建森林资源培育与保护教育部重点实验室,北京100083

出　　处：《浙江农业学报》2013年第5期1103-1109,共7页Acta Agriculturae Zhejiangensis

基　　金：国家"十一五"科技支撑项目(2009BADC2B301)

摘　　要：针对北京市朝阳区的生态安全现状和面临的主要生态问题,基于压力—状态—响应(P-S-R)模型,选择15个特征性专项指标,构建生态安全评价指标体系。在层次分析法确定各项指标权重的基础上,结合综合评价法评价朝阳区2007—2010年的生态安全状况。结果表明:2007—2008年生态安全指数分别是0.531 5和0.547 0,生态安全都为较差状态;2009—2010年的生态安全指数分别是0.554 7和0.555 6,其生态安全都属于一般状态。整体来看,朝阳区生态安全指数较低,生态安全状态较差,但总体生态安全状况在逐年变好。依据所得到的结果和朝阳区的生态现状,为朝阳区的生态建设管理和决策提供支持。According to ecological security status and major ecological problems in Chaoyang Distriot, Beijing, the study chose 15 characteristic special indicators to build the index system of ecological security evaluation based on the pressure-state-response （P-S-R） model. Based on the determination of the weight of index with the help of analytic hierarchy process, comprehensive evaluation is used to assess the ecological security situation in Chaoyang District from 2007 to 2010. The results showed that the aggregated index was 0. 5315 and 0. 5470, respectively in 2007 and 2008, which meant the eeo-security level of Chaoyang District from 2007 to 2008 was in a poor state ; the values for the period from 2009 to 2010 varied from 0. 5547 to 0. 5556, which meant the eeo-seeurity level was in an average state. In general, the eco-security index was low and the state of ecological security in Chaoyang District was poor, but the overall situation was getting better year by year. The ecological construction management and decision-making could be supported in light of the results obtained for a better ecological situation in Chaoyang District.

关 键 词：P—S-R模型 层次分析法 指标权重 生态安全 

分 类 号：X826[环境科学与工程—环境工程]