摘要
在分析不同层次生态安全定义的基础上,采用逆向思维定义了湖泊生态安全,即湖泊在各种生态威胁冲击下仍保持可持续发展的状态,其表现形式为湖泊各项指标在可持续发展范围内的动态波动;提出了湖泊生态威胁理论与模型,并采用德尔菲法把湖泊生态威胁特征分为富营养化、湖泊萎缩和水污染,基于此通过层次分析法和主成分分析法筛选出了评价湖泊生态安全的35个指标,从而构建了湖泊生态安全指标体系。
Based on the analysis of different levels of ecological security definitions,the lake ecological security was identified by reverse thinking as the lake kept sustainable development under various ecological threats and its form of embodying was each index changes dynamically within the range of sustainable development.The theory and model of lake ecological threats were proposed and Delphi method was applied to divide the characteristics of lake ecological threats into eutrophication,lake shrinkage and water pollution.On this basis,by the methods of analytical hierarchy process and principle component analysis,the lake ecological security index system involving 35 indexes were assessed so as to construct lake ecological security indicator system.
出处
《安徽农业科学》
CAS
北大核心
2011年第11期6649-6650,6672,共3页
Journal of Anhui Agricultural Sciences
基金
中国工程院"我国重点湖泊富营养化控制及其流域经济协调发展战略研究"咨询项目
全国重点湖泊水库生态安全调查与评估项目
关键词
湖泊生态安全
生态威胁
评价指标体系
Lake ecological security
Ecological threats
Evaluation index system
