Ecological security assessment of Qiandao Lake based on catastrophe theory(基于突变级数法的千岛湖流域生态安全评价)

LIYanan(李亚男); YUJie(俞洁); WANGFeier(王飞儿); SHENKaili(申开丽)

doi:10.3785/j.issn.1008-9497.2014.06.014

Zhejiang Daxue xuebao. Lixue ban (Nov 2014)

Ecological security assessment of Qiandao Lake based on catastrophe theory(基于突变级数法的千岛湖流域生态安全评价)

LIYanan(李亚男),
YUJie(俞洁),
WANGFeier(王飞儿),
SHENKaili(申开丽)

Affiliations

LIYanan(李亚男): 1.Institute of Environmental Science and Technology, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China( 1.浙江大学环境与资源学院环境保护研究所，浙江　杭州　310058)
YUJie(俞洁): 2.Zhejiang Center of Environmental Monitoring, Hangzhou 310012, China( 2.浙江省环境监测中心，浙江　杭州　310012)
WANGFeier(王飞儿): 1.Institute of Environmental Science and Technology, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China( 1.浙江大学环境与资源学院环境保护研究所，浙江　杭州　310058)
SHENKaili(申开丽): 2.Zhejiang Center of Environmental Monitoring, Hangzhou 310012, China( 2.浙江省环境监测中心，浙江　杭州　310012)

DOI: https://doi.org/10.3785/j.issn.1008-9497.2014.06.014
Journal volume & issue: Vol. 41, no. 6
pp. 689 – 695

Abstract

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针对千岛湖流域生态系统退化、生态安全受到威胁的现状，对千岛湖流域生态安全进行了综合评价，以识别影响流域生态安全的主要因素.研究引入了基于突变理论的多准则评价方法——突变级数法，基于压力-状态-响应(PSR)模型构建了由15个相关指标组成的评价指标体系，对千岛湖流域2008~2011年间的生态安全进行了全面评估.评估结果表明，2008~2011年间，千岛湖流域生态安全2010年达到较安全级别，其他年份均处于基本安全的级别.相对而言，压力系统的安全度最低，状态系统安全度最佳.研究结果表明，虽然目前千岛湖流域生态安全状况较好，但总体状况、压力和响应指标都显示出下降的趋势，说明千岛湖面临着较大的安全压力.

Published in Zhejiang Daxue xuebao. Lixue ban

ISSN: 1008-9497 (Print)
Publisher: Zhejiang University Press
Country of publisher: China
LCC subjects: Science: Mathematics: Instruments and machines: Electronic computers. Computer science; Science: Physics
Website: https://www.zjujournals.com/sci/EN/1008-9497/home.shtml

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