基于熵理论的城市生态调控初探

Study on the urban ecological regulation based on entropy theory

由于城市问题日益复杂化、全局化,城市生态调控作为解决城市问题的重要手段,其研究的对象和方法应当随之发展变化。阐述了将基于降低熵增的理论应用到城市生态调控的方法,并提出了相应的理论框架和实践方法。熵作为表征系统无序性的重要热力学概念,在城市这一典型的耗散系统的调控中有良好的应用前景。将熵理论引入城市生态调控体系,定义了城市生态系统熵,分析其影响因素,并提出了相应的定量方法。此外,充分考虑基于物流能流分析的熵理论在城市生态调控中应用的关键机制,探讨了通过降低城市生态系统熵从而增加系统有序度、维护系统健康的生态调控理论和方法,构建了相应的理论框架和方法体系,为解决城市复合环境问题提供了新的调控方法和思路。

This paper intends to introduce our study on how to apply the entropy theory to regulating the urban ecosystem based on the entropy reduction, the corresponding theoretical framework and practical method. As is known, the urban ecological regulation is one of the key problems to be solved to heighten the urban-life quality. As an important thermo dynamical concept, entropy, a typical dissipative system by nature, represents disorder of the system, which can be expected to find a wide potentiality in the ecological regulation of urban. Therefore, we have defined the entropy of urban ecosystem, analyzed its influential factors and then displayed ways on how to apply the relative quantitative methods. Furthermore, the paper has taken into full account all the key mechanisms of application of the theory to the urban ecosystem based on the analysis of the material and energy exchange in the ecosystem in hoping to reduce the entropy. And finally our research proves to be able to heighten the degree of order and keep health of the urban ecosystem by reduce the entropy, provides a brand-new idea in the urban ecosystem regulation so as to solve the complicated problems in this field.