Connotation of Healthy Life of Yellow River Based on Theory of Dissipative Structure
This paper uses theory of dissipative structure originated from the No. 2 principle of thermodynamics to analyze connotation of healthy life of the Yellow River. According to I. Prigogines theory, there must be at least four requirements to form and sustain a dissipative structure. First, the system must be open, neither an isolated system nor a closed one can produce a dissipative system. Second, the system must locate in the non-linear area far away from equilibrium, and a dissipative structure is a kind of live and ordered one. Third, there should exist some non-linear dynamic processes in the system, such as a positive or negative feedback mechanism and so on. And the last, the system can be harmonious and be in order through interaction of fluctuation between function and structure. Based on analysis of the Yellow River according to the four conditions above- mentioned, a conclusion made that the river meets the demands of a dissipative structure. And form of entropy change and expression of total entropy of healthy life of the Yellow River are derived, and a conclusion is made that increasing negative entropy flow is the fundamental approach to sustain healthy life of the Yellow River. To sustain healthy life of the river, more measures should be taken to increase negative entropy flow, to expand exchange of matter and energy between the original system and the surroundings, and to realize dissipation of matter and energy to the utmost extent; which can result in a systemic structure to sustain the healthy life of the river. In order to ensure evolution of the river in ordered direction, measures in accordance with subsystems of the river should be taken to turn it to be an ordered dissipative structure of self- organization in time, space and function.
the theory of dissipative structure an open system entropy negative entropy flow healthy life of the Yellow River
Xu Shiguo Feng Feng
Institute of Water Environment, Dalian University of Technology (DUT), 2 Linggong Road, Dalian, Liao Institute of Water Environment, Dalian University of Technology (DUT), 2 Linggong Road, Dalian, Liao
国际会议
山东东营
英文
52-57
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）