CAJ | 학술논문

从复杂系统研究角度来看，城市生态系统安全结构演化遵循信息熵最大原理，结合自组织特征映射神经网络(SOM)为算法实现手段，形成了城市生态系统安全评价的非平衡统计力学模型。在选用P-S-R模型构建起评价指标体系的基础上，运用该模型对2004-2011年上海市生态系统安全状态进行评价分析。结果表明上海市生态系统安全状态呈逐年上升的趋势，2004-2008年为临近安全，2009-2011年较安全。压力系统是提高上海市生态系统安全级别的主要限制子系统，而主要的限定因子来源于经济、社会和资源方面。评价结果一定程度上为上海市生态环境管理及决策提供了科学的依据。
종복잡계통연구각도래간，성시생태계통안전결구연화준순신식적최대원리，결합자조직특정영사신경망락(SOM)위산법실현수단，형성료성시생태계통안전평개적비평형통계역학모형。재선용P-S-R모형구건기평개지표체계적기출상，운용해모형대2004-2011년상해시생태계통안전상태진행평개분석。결과표명상해시생태계통안전상태정축년상승적추세，2004-2008년위림근안전，2009-2011년교안전。압력계통시제고상해시생태계통안전급별적주요한제자계통，이주요적한정인자래원우경제、사회화자원방면。평개결과일정정도상위상해시생태배경관리급결책제공료과학적의거。
From the angle of complex system, the structural evolution of urban ecosystem security followed the Maximum information entropy principle, combined with the self-organizing feature map(SOM), a non-equilibrium statistical mechanics model of urban ecosystem security assessment has been formed. In this paper, we used the model to assess and analyze the ecosystem security status in Shanghai City from 2004 to 2011 on the basis of building up the assessment indexes system by pressure-state-response model. The result showed that ecosystem security status had been increasing year by yea, pressure system was the main restriction sub-system to improve the ecosystem security level in Shanghai City, and the main restricted factors from economic, social and resources. The evaluation result provided a scientific basis for the environmental management and decisions.