Research on Coupling Model of Energy-Economy-Environment System of Beijing City

There exists complicated relationship among energy, economy and environment. Every single system contains a lot of uncertain information and indexes of one system may affect other systems. So, this paper views energy,economy,environment as a system and analyzes the coupling relatiopnship by establishing a coupling model of energy-economy-environment system according to the system coupling theory. The paper selects Beijing City as the research target and applies the model with the index data of energy-economy-environment system from 2004 to 2011. The results show that the model can reflect the changing trend of every two subsystems’ interaction relationship, which will help to explore the essential relationship and predict the development of the system.