A Study On Evaluation Of Regional Circular Economy Development Model And Its Path Of Evolution

The traditional linear model of economic growth which developing with "high extraction, high input, high consumption" resources in exchange for high economic growth, while with a "high waste, high-emission, high pollution," resulting in natural resources nearly exhausted and serious damage to the environment. In this context, emerged the concept of circular economy. Circular economy is a closed-loop material flow-based economy under the guidance of sustainable development, which in accordance with cleaner production methods, implements the comprehensive utilization of energy and waste, makes economic activity a feedback process in the formation of "resources - products - renewable resources ", so as to achieve" low extraction, low emission, high-use "purposes. As a vital component of economic development, regional economy has become the weight impact of the global development of economy present and future, as an integral unit among the implementation of circular economy, the development of regional circular economy will directly affect the implementation of national strategies and improve system. From the above point of view, this article studies the development model of recycling economy, makes accurate and comprehensive evaluation of development of regional circular economy from a quantitative point of view, and on this basis, examines the changes of development of regional circular economy dynamically, digging out the law of its evolution path, and gives the corresponding policy according to this law, and gives recommendations to the healthy and rapid development of regional recycling economy.Firstly, this paper has done a very detailed overview of the theory of regional recycling economy, puts "regional", "recycling economy", "regional recycling economy" as the object system to collate and summarize the relevant research literature, as laid a very solid theoretical basis to the full discussion of this paper.Secondly, gives a detailed analysis to the regional recycling economy development model. To build a regional system and its conceptual model of circular economy from the perspective of system dynamics, and its constituent elements, functions and characteristics have been described in turn. On this basis, describes the power system and economic constraints of regional circular economy, points out that the main driving force comes from the eco-supportive, force of economic development, social stability, etc.; and constraints within the region are mainly from the ecological conditions, economic development, policies and systems, technical strength, public ecological awareness. Discusses circulation patterns from the agricultural, industrial circulation patterns, eco-services model, waste recycling industry and other point of view on the regional level of circular economy, and set the German model and the Japanese model as examples, cited the experience of foreign countries learn circular economy.Again, describes the development of regional recycling economy evaluation process. After a brief overview of the purpose and significance of evaluation, the nature of evaluation, evaluation of research status, etc., tries to collate and summarize the evaluation index system of regional circular economy on the basis of the existing research literature and data, and targets to the relevant principles, constructed with multi-level structure of the target evaluation index system of regional circular economy, and a comprehensive interpretation and elaboration has given to the index system. In determining the weight of evaluation used the "AHP AHP + entropy" comprehensive weighting method, which makes the determination process of evaluation index weights more scientific and rational. Uses the TOPSIS method during the process of evaluation of regional circular economy development, which makes the evaluation process more simple and accurate.Then, the evolution path of regional circular economic development was analyzed. This is the greatest innovation of this paper, by constructing "path evolution model of regional circular economiy", dynamically studied the evolution of the regional circular economy, through the trajectory changes of points in the model space during a certain time series, gave a simulation to the evolution path of the regional circular economic development, and find out the laws of path evolution of regional circular economy, and predict the future on the development of regional circular economy.Finally, gave an empirical study as the object of Tianjin Binhai New Area. Empirical process introduced the basic situation of Tianjin Binhai New Area, the current situation of the development of circular economy of Tianjin Binhai New Area, gave a comprehensive evaluation of the development of circular economy based on TOPSIS method; then, analyzed the evolution path of circular economy of Tianjin Binhai New Area with the path evolution model of regional circular economy, and extracted the law of the evolution of its development, then made a prediction to the future of the circular economy of Tianjin Binhai New Area, and policy recommendations were given for the existence issues in the development of cirrular economy of Binhai New Area.