Integrative fuzzy set pair model for land ecological security assessment: a case study of Xiaolangdi Reservoir Region, China
作者： Shiliang Su , Xia Chen , Stephen D. DeGloria , Jiaping Wu
DOI: 10.1007/S00477-009-0351-X
关键词: Unit (housing) 、 Administrative division 、 Fuzzy set 、 China 、 Environmental degradation 、 Environmental resource management 、 Analytic hierarchy process 、 Geographic information system 、 Fuzzy logic 、 Geography
摘要: Due to the increasingly serious ecological degradation of land systems, security issues have attracted more and attention policy makers, researchers citizens. Aiming at overcoming disadvantages in subjectivity complexity currently used assessment methods, an integrative fuzzy set pair model for assessing was developed by integrating analysis (SPA). The approximate degree optimal standard calculated describe secure level combining multiple indices. indices weights were determined a pressure-state-response analytic hierarchy process (AHP), respectively. Aided geographic information system, this applied evaluate comprehensively status Xiaolangdi Reservoir Region, China, taking administrative division as unit. results showed that 20% total area maintained slightly status, while 50% study middle or seriously low grade security. remaining portion (30%) most ecologically insecure. From spatial prospective, obvious variations observed. eco-security gradually decreased from Dam its surrounding regions. It concluded integral Region level, intense human activities speeded up regional ecosystem recent years thus induced crisis
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