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本文将生态系统稳定性的研究理念引入到生态安全系统评价中,选取我国三大海域沿海城市生态安全系统为研究对象,采用结构方程模型分析生态安全系统的运行机制,识别系统内部物质、能量流转的路径及强度;并采用生态网络的研究方法,构建了生态安全系统的物质能量流转的动力学方程,对三大海域沿海城市生态安全系统的状况进行比较。研究结果表明:三大海域沿海城市生态安全系统内部呈现出差异化的框架结构,构建了不同的物质能量的流动网络;南海区域安全系统稳定性处于成熟稳定阶段,东海区域处于发展稳定阶段,黄渤海区域则处于初始不稳定阶段。
Abstract：This paper introduces the research theory on stability of the ecological system into the assessment research on the ecological safety system. Taking the ecological safety systems in the coastal cities along the Chinese three seas as the research focus,this paper is to analyze the operational mechanism of ecological safety systems,and identifies the flow paths and intensity of the material and energy within these systems. Based on the verified structure of the ecological safety systems and the function coefficients,this paper employs the ecological network analysis method( ENA) to build up the material and energy flow dynamical equations for ecological safety systems and to measure the assessment indicators( channel capacity,system polymerization,system redundancy) on the stability of the ecological safety system in order to conduct an assessment and comparison on the ecological safety systems in the coastal cities. The results show that the ecological safety systems have exposed the differences in their framework structure and build up their own flow networks of materials and energy along these three seas. At the same time,a study shows based on comparison analysis of the stability of the ecological safety systems in the coastal cities along these three seas: the ecological system along the South China Sea is at the stage of mature stability,that along the East China Sea at the stage of developing stability and along the Bo-Yellow Sea at the stage of initial instability.
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基本信息:
DOI：10.19343/j.cnki.11-1302/c.2017.08.004
中图分类号:X826
引用信息:
[1]秦晓楠,程钰.生态安全系统稳定性评价研究[J].统计研究,2017,34(08):44-52.DOI:10.19343/j.cnki.11-1302/c.2017.08.004.
基金信息:
国家自然科学基金重大项目“绿色增长理论与实践的国际比较研究”(71320107006);; 教育部人文社会科学青年项目“面向生态文明建设的旅游生态安全系统作用机理解析及最优演化路径识别”(16YJC630098)资助
2017-08-15
2017-08-15