基于熵理论的湖泊生态系统健康发展评估.pdfVIP

中国环境科学 2017,37(2) ：795~800 China Environmental Science 基于熵理论的湖泊生态系统健康发展评估 徐国宾 1*,任 旺 1,郭书英 2,王乙震 3 (1.天津大学,水利工程仿真与安全国家重点实验室,天津 300072 ；2.海河 流域水资源保护局,天津 300170 ；3.海河流域水环境监测中心,天津 300170) 摘要：为评估湖泊生态系统的健康发展方向,基于薛定谔关于熵变与生命体关系的理论,引入信息熵的概念,建立评估湖泊生态系统健康发 展的量化模型.采用基于指标所处状态的方法,划分指标为消极指标和积极指标,对指标性质和熵流方向进行辨识,权衡健康与发展两方面 赋予权重计算.以 2012 年白洋淀各水域的监测资料为基础进行了实例应用,从计算结果可以看出, 白洋淀生态系统整体处于亚健康状态,且 若无重大治理措施近几年都会处于此状态,其中“水文水资源”、“生物”准则层情况最为严重.通过分析两准则层的关联指标发现,影响白 洋淀健康的主要原因是由于白洋淀的生态水位长期得不到满足,从而引发生物、水质下降,且后续实地考察得以证实. 关键词：熵变；湖泊生态系统；信息熵；白洋淀 中图分类号：X824 文献标识码：A 文章编号：1000-6923(2017)02-0795-06 1* 1 Analyses on the development of lake complex ecosystem health based on entropy theory. XU Guo-bin , REN Wang , GUQ Shu-ying2, WANG Yi-zhen3 (1.State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China ；2.Haihe Water Resources Protection Bureau, Tianjin 300170, China ；3.Haihe River Water Environmental Monitoring Center, Tianjin 300170, China). China Environmental Science, 2017,37(2)：795~800 Abstract ：To evaluate the development of the lake systems, based on Schrodingers theory about the relationship between entropy change and life, this paper introduced the concept of information entropy and established a quantitative model which could evaluate health development of the Lake ecosystem. The analysis method adopted is based on the state of the indicators. At the meantime, the indicators were sorted into positive indicators and negative indicators, both the indicator property and entropy flow direction were being identified. And then to determine the indicators’ weight, balanced the health and development. The entropy calculation results based on the monitoring d