水土保持研究2017，Vol.24Issue(4)：108-112,5.
基于PSR-CPM模型的市域土地生态安全评价
Evaluation of Land Ecological Security in Jincheng Based on the Model of PSR-CPM
摘要
Abstract
Based on the PSR model,the four-level model of target,criterion,factor and index was built,and land ecological security level of Jincheng City from 2005 to 2014 was evaluated by using catastrophe progression method.The results show that from 2005 to 2008,the ecological security level of land in Jincheng City was rose,and reached to the critical security state;from 2008 to 2009,the ecological security of the land declined and fell to less secure;from 2009 to 2013,land ecological security level was rose,and stabilized at relatively safe level;from 2013 to 2014,the level of land ecological security had a slight downward trend,and reduced to a less secure state again.The change was mainly the result of the afforestation project and industrial structure reform in Jincheng City in the period from 2005 to 2008.The change was mainly due to the economic crisis and drought in the period from 2008 to 2009.The change was mainly due to the recovery of economic,food production and industrial pollution in the period from 2009 to 2013.The change was mainly due to economic slow down and population growth in ther period from 2013 to 2014.In view of the main restrictive factors,Jincheng City should pay more attention to the transformation of industrial structure,control the industrial pollution emissions and increase the agricultural irrigation facilities.关键词
土地生态安全评价/突变级数法/PSR模型/晋城市Key words
evaluation of land ecological security/catastrophe progression method/PSR model/Jincheng City分类
资源环境引用本文复制引用
郭宇伦,师学义,璩路路,刘畅..基于PSR-CPM模型的市域土地生态安全评价[J].水土保持研究,2017,24(4):108-112,5.基金项目
国土资源部公益性行业科研专项经费课题“北方村庄压煤山丘区土地综合整治技术研究”(201411007) （201411007）
