Study about Ecological Security Assessment of Beijing Valley Region Based on PSR Model——A Case study of Puwa Valley Region in Fangshan District

2019 3rd International Conference on Environmental and Energy Engineering

生态环境科学

Jiang, Cui-Hong^1 ; Li, Guang-Yong^2

Institute of Agricultural Information and Economics BAAFS, Beijing, China^1

National Geomatics Center of China, Beijing, China^2

关键词: Analytic hierarchy process (ahp);    Concept model;    Ecological security;    Impact factor;    Internal systems;    Pressure state response (PSR);    Psr models;    Region-based;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/281/1/012011/pdf
DOI  :  10.1088/1755-1315/281/1/012011

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

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.