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[1]GUO Yulun,SHI Xueyi,QU Lulu,et al.Evaluation of Land Ecological Security in Jincheng Based on the Model of PSR-CPM[J].Research of Soil and Water Conservation,2017,24(04):108-112.

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Evaluation of Land Ecological Security in Jincheng Based on the Model of PSR-CPM

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 04 Page number: 108-112 Column: Public date: 2017-08-28

Title:: Evaluation of Land Ecological Security in Jincheng Based on the Model of PSR-CPM

Author(s):: GUO Yulun, SHI Xueyi, QU Lulu, LIU Chang; College of Land Science and Technology, China University of Geosciences, Beijing 100083, China

Keywords:: evaluation of land ecological security; catastrophe progression method; PSR model; Jincheng City

CLC:: X821

DOI:: -

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.

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