The dynamic coupling analysis for coordinated development of the environment and economy based on cloud model: Case study of Henan

The coupling between the environment and economic system is a dynamic process, and it is full of uncertainty. That is why it is difficult to predict what kind of structure it assumes at the end. Therefore, this paper constructs the dynamic coupling model of the coordinated development of economy and environment, based on order parameter of synergetic theory and borrowing the idea of system evolution. Because coordinated development is a concept that its connotation is clear but denotation is ambiguous, in order to avoid the irrational judgment made by using the value as the standard, this paper borrow cloud model to assess the dynamic coupling of the coordinated development of economy and environment (Here in after referred to as DCCDEE). The research indicated that from 1990 to 2012 the development of Henan´s environmental and economic systems undergone a process of spiraling, ranging from low-grade coordination , symbiosis to mutual stress and entered a state of moderately coordinated development at present. DCCDEE in Henan discussed that the contradiction between environment and economy still existed, but the adjustment and interference of the external conditions such as economic measures and environmental policies can affect the evolutional speed of the economic and environment as well as the relationship between them, thus helping environmental and economic systems evolve in an orderly direction.