| 引用本文: | 张永泽,刘玉生,郑丙辉.(火用)(Exergy)在湖泊生态系统建模中的应用.湖泊科学,1997,9(1):75-81. DOI:10.18307/1997.0112 |
| Zhang Yongze,Liu Yusheng,Zheng Binghui.Application of exergy to the modelling of lake ecosystem. J. Lake Sci.1997,9(1):75-81. DOI:10.18307/1997.0112 |
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| 摘要: |
| 基于达尔文"适者生存"理论的热力学表述,本文把热力学概念"(火用)(Exergy)"作为一些重要模型参数的目标函数引入湖泊生态动力学模型.应用拥控制下的参数组合模拟程序实现了参数随时间的变化,并通过变化的模型参数来反映湖泊生态系统中物种组成和生态结构随时间的变化.这一改进克服了以往模型刚性较强、适应性差和生态系统特性考虑少的缺陷,该改进的湖泊生态动力学模型被成功用于滇池生态系统的模拟. |
| 关键词: (火用) 生态动力学模型 参数组合模拟 湖泊生态系统 滇池 |
| DOI：10.18307/1997.0112 |
| 分类号: |
| 基金项目:"八五"科技攻关项目85-908-02-02 |
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| Application of exergy to the modelling of lake ecosystem |
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Zhang Yongze1, Liu Yusheng2, Zheng Binghui2
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1.Department of Hydraulic Engineering, Sichuan Union University, Chengdu 610065;2.Chinese Research Academy of Environmental Sciences, Beijing 100012
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| Abstract: |
| Based on the thermodynamic formulation of Darwin's Theory of Survival of the Fittest, this paper introduces the thermodynamic concept Exergy into an ccadynamic model for lakes as a goal function of some important model parameters, then the ecological properties of lake ecosystem are considered extensively. The changes in model parameters with time are aecomplished by using the modelling procedure of parameter combinations under exergy control, then the changes in the species composition and ecological structure of ecosystem are reflected by the varying parameters. This improvement overcomes the original ecodynamie model's defects of strong rigidity, poor adaptability and inadequate considerations of ecosystem properties. The modelled results of Di-anchi Lake ecosystem have shown that the improved ccodynamic model is satisfactory and practicable. |
| Key words: Exergy ecodynamie model modelling of parameter combinations lake ecosystem Dianchi Lake |
