Research On The Spatial Correlation Structure Of Urban Agglomeration Economic Growth And Its Effects In Northeast China

Since the reform and opening up,China's Yangtze River Delta,the Pearl River Delta,and the Beijing-Tianjin-Hebei region have experienced rapid economic development and have become more and more important in terms of economic scale.They have become an important engine for China's rapid economic growth.In the process of rapid urbanization in China,the expression of urban agglomeration as a means of spatial cluster has become an important support point for regional economic development.Since the “Eleventh Five-Year Plan”,the importance of “urban agglomeration strategy” has been emphasized many times in the national strategic planning.The urban agglomeration economy can promote the transformation of regional economic development mode and economic intensification by improving the efficiency of production factor allocation and develop and make full use of the urban agglomeration as the radiation and driving role of the regional economic growth pole.The spatial characteristics of the urban agglomeration economy are realized as follows: first,the rapid flow of factors;second,the close relationship between cities;and third,the internal urban economic association forms a complex network structure.The urban agglomeration economy has gradually developed into a regional economic growth pole from the clustering of factors to the generation of linkages and feedback to economic growth.The economic development speed of urban agglomeration in Northeast China is not as fast as that in Yangtze River Delta.The emergence of the "New Northeast Phenomenon" has made it a hot spot of academic and government concern.The characteristics of industrial structure and economic growth mode in old industrial base of Northeast China are quite unique,especially in the development of industrial cities,which promotes regional economic growth.However,in the process of rapid industrialization,the development of resource-based industries is unsustainable,and the economic downturn is obvious in Northeast China.In February 2016,the State Council issued the "Reply on the Development Plan of the Ha Chang Urban Agglomeration"(Guo Han [2016] No.43),officially approved the development plan for the Ha Chang Urban Agglomeration.In the plan,Harbin,Qiqihar,Daqing,Changchun,Jilin and Siping's core cities and sub-cities are classified into urban agglomerations in order to realize the radiation effect of the urban economy.With the opening of the “Ha-da” high-speed rail,the distance cost between the Ha Chang Urban Agglomeration and the Liaozhongnan urban agglomeration city has been shortened,and the spatial correlation of economic activities in the region has become increasingly close.Under this circumstance,the flow of elements in the region is accelerated,and the flow of information,technology,and talents strengthens the relationship between cities within the urban agglomerations of Northeast China and between them and the cities outside,and promotes the formation of spatial structure of urban agglomeration economies.And regional development has also contributed to the evolution of this connected structure to complex networked structures.How this networked structure evolved in the region,what trends it has and what effect it has on economic growth in Northeast China is the main content of the thesis.This thesis based on the theory of regional economic growth,from the perspective of spatial interaction,makes comprehensive use of economic geography,regional economics,econometrics and other related discipline theories,and takes the social network analysis method and threshold effect regression method as the research means,discusses the spatial correlation structure characteristics of economic growth of urban agglomeration in northeast China from 2000 to 2016 and its internal influence mechanism,analyzes the practical problems of urban agglomeration network structure characteristics on economic growth effect,and puts forward relevant policy suggestions.First,the thesis summarized the relevant theories of economic growth and regional development,and defined the spatial correlation structure,spillover effect and threshold effect of economic growth.Second,the disssertation analyzed the spatial correlation structure of economic growth by the method of spatial correlation constructing the mechanism of spatial correlation structure effect.Third,the spatial and temporal evolution of economic growth in Northeast China is visualized and used to analyze by GIS spatial visualization method.The per capita GDP growth is selected as the description of economic quantity.The growth indicator selects technical efficiency,technological progress change and total factor productivity as indicators to describe economic efficiency growth,and judges the spatial pattern of economic growth of the Ha-Chang Urban Agglomeration and Central and Southern Liaoning Urban Agglomeration.Fourth,the dissertation set up the spatial correlation of economic growth in Northeast China,and tried to use the proportion of the total economic scale of the city to correct the spatial correlation strength of the economic quantity,and tried to use the urbanization rate to correct the spatial correlation intensity of economic efficiency.The social network analysis method is used to measure the spatial structure of the economic growth network.Fifth,in order to measure the spatial spillover effects,the correlation coefficient was calculated,and the threshold regression approach was used to explore the threshold effect on economic growth characteristics of individual network.The results show that,first,in terms of economic growth,the Ha-Chang Urban Agglomeration has a more obvious core-edge structure,and the high-value area shows a “Tshaped” distribution,which is consistent with the “Ha Da” high-speed railway line.The growth is relatively stable,but,the economic growth of Central and Southern Liaoning Urban Agglomeration is unstable,especially the negative growth of based on resource cities.Second,in terms of economic efficiency growth,there are large spatial differences in the economic efficiency growth of the Ha-Chang Urban Agglomeration and Central and Southern Liaoning Urban Agglomeration,and agglomeration phenomenon is also unstable,indicating that it is possible for improvement in economic efficiency growth.Third,the spatial correlation structure based on "relationship" is different from the spatial characteristics of "attribute",and city nodes play different roles in the network.And from the time series,the change is significant indicats that the economic growth network structure in Northeast China is still unstable.Fourth,the economic growth in terms of space,the spatial spillover blocks characteristics are relatively stable,the four research time points are not changed,but the economic efficiency growth space spillover effects blocks turn to be different.The characteristics of individual networks have different threshold effects on economic growth.The threshold effect of Ha-Chang Urban Agglomeration and Central and Southern Liaoning Urban Agglomeration is quite different.Based on the above research methods and conclusions,aiming at the current situation of the research area,it is proposed to optimize the economic spatial association network of urban agglomerations in order to reduce the economic differences of urban agglomerations in Northeast China.It is necessary to develop synergistically to promote the space of elements flow.It is benefical to improve the network degree of the two direction spillover blocks and enhance the action of the core city radiation belt.In order to expand the effect of the small cities to form the block,by cultivating the internal gradient level of the four blocks.For the further deeply development,it is essencial to improve of the cross-provincial high-speed railway network construction and promote the regional economic integration development.