Open AccessStudy about Ecological Security Assessment of Beijing Valley Region Based on PSR Model——A Case study of Puwa Valley Region in Fangshan District
Author(s) -
Chen Jiang,
Guangyong Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/281/1/012011
Subject(s) - analytic hierarchy process , beijing , hierarchy , social security , construct (python library) , geography , ecology , environmental resource management , computer science , operations research , environmental science , china , political science , engineering , law , archaeology , biology , programming language
The analytic hierarchy process (AHP) was used to evaluate the ecological security of Beijing valley region. Based on the concept model of PSR (Pressure-State-Response), and referred to the current assessment methods of the ecological security evaluation, relating AHP to construct evaluation system, this study combined the impact factors of natural, social and economic on Valley Region ecological security, the mutual influence and restraint law of the internal system between various factors, AHP was used to establish the ecological security assessment indicators system of Beijing Valley Region. Compared with 2010 increased 0.08, The score of ecological security about Puwa Valley Region was 0.63 which attained general status. At last, this study promoted corresponding advices.