Study On Coupling For Construction System Of Rural Eco-residential Areas

China is a large agricultural nation. It becomes an important national development strategy and an urgent mission for the construction industry to vigorously promote rural construction and to fully achieve the well-off housing standard and the development objectives for urban and village plan as a whole. For general and urgent problems of un-balanced development of the resource, economy, environment and society, coupling for the construction system of rural eco-residential areas is studied in this paper to provide theoretical guidance and technology support for the sustainable development of new rural construction.Rural eco-residential areas are aimed to achieve the objectives of cooridinative development of the resource, economy, environment and society in the full process of rural residential construction, with housing and infrastructure construction and human environment improvement as the main contents based on the ecology theory.Supported by the "11th five-year" national science and technology supporting major projects "Study and demonstration of the key technology for rural well-off houses", based on the research achievements at home and abroad, this paper conducts creative research on the construction mode, coupling mechanism, coupling index system, coupling measurement model and simulation evaluation. Then it makes empirical study on the rural eco-residential construction system, taking the Yanhe village as an instance.The research contents and main achievements of this paper are as follows:(1) Set up the construction system of rural eco-residential areasThe definition of construction system of rural eco-residential areas is put forward by this paper,which analyzes its major features, proposes three fundamentals for the construction system, establishes the Hall three-dimensional structure, proposes the construction principal components based on four order parameters including the construction time sequence, rural residential construction, infrastructure construction and improvement of human environment, builds the resource, economy, environment and society subsystems, and designs the general framework.(2) Analyze the coupling mechanism for the construction system of rural eco-residential areasBased on the dissipative structure theory, the paper analyzes the phyletic evolution and fork process of rural eco-residential construction. Based on system synergetic theory, the internal coupling effect under the influence of the synergetic mechanism is analyzed. Based on the system dynamic theory, we propose that the variation dynamic of the rural construction system appears as system optimization control and the system coupling appears as the internal dynamic of the system dynamic feedback which makes the system evolve to orderly state. Then the coupling control mechanism is studied, the objective function and general requirements are proposed, the coupling principles are established, and the coupling mechanism in and between the construction subsystems of rural eco-residential areas is put forward.(3) Build the coupling index system for the construction system of rural eco-residential areasThe coupling index system framework is designed with 5 parts,23 terms and 86 indicators. Then the calculation method for the order parameter index of the construction principal components and for resource, economy, environment and society subsystem index is proposed, and the coupling index system is established.(4) Establish the coupling measurement model for the construction system of rural eco-residential areasThe paper puts forward the definition of coupling degree, establishes the coupling function based on the utility function, order parameter credit and coupling degree analysis, proposes the evaluation standard for coupling degree, establishes the coupling model based on the grey correlation degree, puts forward the calculation method for the coupling degree, works out the system coupling measurement program with MATLAB 7.0, and designs the simulation interfaces and computation process for the measurement evaluation of system coupling.(5) Carry out the coupling empirical study for the construction system of rural eco-residential areasBased on the analysis of the construction conditions and contents of the Yanhe eco-residential area, the construction principal components, resource, economy, environment and society subsystem index of Yanhe eco-residential area are calculated with the coupling measurement evaluation model, and the coupling degree is calculated with Matlab 7.0.(6) Optimization suggestions for the construction of rural eco-residential areas based on the policy simulationThe paper conducts coupling simulation evaluation for the construction system under different conditions in Yanhe village, including resource variation system, economy variation system, environment variation system and society variation system. With the simulation results which coincide with the actual construction condition, some optimization suggestions are proposed for the coupling of construction system in Yanhe eco-residential area.