Research On The Evolution Of China's Multi-scale Economic Spatial Hierarchy

China's economy has made great achievements in the past decades.We have good reasons to celebrate the great success we've made,while meanwhile we should pay special attention to the unbalanced and inadequate state of spatial distribution.The main purpose of this paper is to make research on the evolution of China's economic structure in different spaces.Based on a geometric analysis of economic spaces,as well as the concrete forms of the evolution of China's economy in different spaces,this paper mainly deals with five spaces,the countryside,urban agglomeration,infrastructure,regional,and marine area.With the use of scientific metaphor and summary method,the five-dimension special field is taken as China's overall design for evolution design.The first part is theoretical preparation.The paper first make a summary of related research on those theories of the evolution of economic space,domestic and foreign,western and Marxist.Based on the research status,the paper establishes the theoretical logic basis points,fixes the specific research object and the frame of the body part.The paper begins with the analysis of the economic space elements from the point of geometric space elements,and with a metaphorical way of the science of space field theory,forms an economic space field theory.And the theory is applied to analyze China's macro economic spaces,and on that basis a five-dimension economic framework has been built,including countryside as the evolutionary node,urban agglomeration as the evolutionary node set,infrastructure as the axis of the evolution,regional evolution as the domain,and finally the ocean evolution towards which a three dimensional space has been built.Finally,a potential economic space is formed in the process of the interactions of the current developing state of each economic space,major hindrances within each space,communications among different spaces,the expansion and merger of different spaces,and the possible performance of each space incurred by the influence of other spaces.The second part is the fractal analysis of China's economic spaces.Rural nodes and urban agglomeration nodes provides a micro support for the observation of China's economic spaces.Starting from the evolution track of rural economic space,the characteristics and system of rural economic space evolution are studied,and the dynamic mechanism of economic space evolution is analyzed.Based on the analysis of spatial structure and evolution characteristics of urban agglomeration,the law of economic spatial evolution of urban agglomeration is further summarized.As the axis of economic spatial evolution,infrastructure expands the geographical space,living space and production space of evolution,and promotes the optimization of spatial structure of urban agglomeration and rural access.From the perspective of the spatial evolution of regional economy,the four major plates show the evolution trend of pointline network.The network evolution of Beijing-Tianjin-Hebei Region,the connection evolution of the Yangtze River Economic Belt and the opening evolution of the “One Belt And One Road” are reshaping China's regional economic spaces.The two major supports for the three-dimensional evolution of marine economy are to expand the blue economy space and build marine ecological civilization.The third part,combining theory with practice,puts forward the countermeasures and suggestions for constructing high-quality economic spaces.Applying the spacial field theory to China's economy spaces,in order to construct high-quality economic spaces,the mechanism requires us to improve the current developing state of each economic space,to limit the major hindrances within each space,to strengthen the communications among different spaces,to promote multiple expansion and merger of different spaces,and to advance the possible performance of each space incurred by the influence of other spaces.That is the aim of the overall design.To be concrete,on the micro level,we need to strengthen the spatial potential of urban agglomeration economy and reduce the spatial entropy of rural economy,and continuously strengthen the micro support of urban and rural economic space;on the medium level,we need to build a ubiquitous and efficient infrastructure space with a modern transportation system,a modern energy supply system,and a modern information transmission system,to promote communications between different spaces so as to increase the merger;thus on the macro level,the performance of the whole China's economic spaces will improve.The fourth part is the conclusion,which makes a summary of the possible innovation points of the paper.They are,for instance,the construction of the analysis framework of the five-dimensional economic spacial field,the bring-out of rules of the hierarchical evolution of the economic spaces,and the proposition of the fivedimensional economic spaces in China.These help to have a better understanding of the evolutionary history of China's economic spaces,and furthermore to form correct ideas on the construction of high-quality economic spaces.The paper also points out the problems to be improved,the deficiency of quantitative analysis,and the focus and direction of future research work.