基于PSR模型的刁口河流路生态完整性评价  

Perspective of Ecosystem Integrity in the Flow Path of Diaokou River Based on PSR Model

作　　者：吕龙龙 李新宝[1] 蒋晓辉[2] 董国涛[2] 邵天元 

机构地区：[1]华北水利水电大学,河南郑州450011 [2]黄河水利科学研究院,河南郑州450003

出　　处：《人民黄河》2014年第4期79-81,共3页Yellow River

基　　金：水利部公益性行业科研专项(201101008);中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2013-22)

摘　　要：采用PSR(压力—状态—响应)模型和生态系统完整性评价方法,结合刁口河流路生态系统特点,构建了刁口河流路生态完整性评价指标体系,用层次分析法并参考专家意见对指标进行权重分配;采用生态完整性评价方法,对指标进行标准化赋值,得到刁口河流路范围内的生态完整性指数。结果表明:该地区2009年的生态完整性指数为0.285,生态完整性处于较差状态;2012年生态完整性指数为0.458,处于一般状态。Combined with the ecosystem characteristics of the Diaokou River, this paper established the system of the perspective of ecosystem in- tegrity of Diaokou River with the method of PSR （pressure-state-response） model and the perspective of ecosy-stem integrity. The weight distributi- on of index was determined through analytic hie-rarchy process （abp） and suggestions from the experts ; secondly , the index was standardized due to the perspective of ecosystem integrity and it got the integrity index of the Diaokou River finally. The result shows that the integrity index of t- his region is in a poor level of 0. 285 in 2009 and which is in a general level of 0. 458 in 2012.

关 键 词：刁口河流路 PSR模型 生态完整性评价 

分 类 号：O225[理学—运筹学与控制论]