A Research On The Central City Network Of The "Silk Road Economic Belt"

"Silk Road Economic Belt"is a new economic integration corridor which provides a connectivity for Asian,European,and African continent.In March 2015,National Development and Reform Commission,Foreign Ministry,and Ministry of Commerce jointly release"the vision and action on promoting the establishment of Silk Road Economic Belt and Maritime Silk Road in the 21th century".The thesis points out that,Silk Road Economic Belt"should rely on the international thoroughfare,regards the key economic and trade industrial region as the cooperative platform,supported by the central cities along the Silk Road,to collectively build a new corridor for International Economic Cooperation.It is observed that central cities along the Silk Road are not only the poles of growth for all regions,but also the fulcrum of"Silk Road Economic Belt".Ift the"Silk Road Economic Belt"is compared to a"network",those central cities along the Silk Road should be the nodes of the network.The urban network,which is connected by the central cities along the Silk Road as the nodes,brings a great significance for the building of deeply advancing the"Silk Road Economic Belt"and enhancing the regional economic cooperationBased on the above content,this paper,from the perspective of financial services in enterprise layout,constructs the network of central cities along the Silk Road,and by means of four indicators systematically analyzes the structural characteristics and the node characteristics of the network in central cities.Firstly,this paper sorts out relative research theories about urban network and central cities at home and abroad,which lays a foundation for the subsequent selection of central cities and the model construction.Secondly,in terms of official documents and other academics'literature review,this paper defines the spatial scope which will be studied along the Silk Road,finds out the central cities within the scope,and through the spatial layout data of the selected financial services,constructs the network model of central cities of "Silk Road Economic Belt".Thirdly,by the virtue of the city's relative connectivity.,close centrality,the K-core structure and basic association tree of the urban network.The constructed network of the central cities is analyzed and characterized by the urban nodes and the core structure of urban network.Finally,this paper would draw the following conclusions:(1)The network of-central cities is well-developed,and all central cities maintain a close relationship with a great accessibility,especially the core cities;the whole network appears the double-core structure of respectively taking London and Paris as a core,and the heart of the whole urban network lies in the northern line.(2)It can be concluded the core cities of three lines:London and Paris which are the core cities of the northern line and also as the double-core cities of the whole urban network;Milan as the core city of the middle line;Bombay as the core city of the southern line.(3)All lines have different supporting strength,of which the northern line is the best in financial power and plays a significant role in supporting the urban network;the southern line support much of the urban network but less than the northern one;the middle line supports little of the urban network because of serious polarized development.(4)The nine central cities of our country all are in main core,and play a crucial role in the urban network.However,the nine central cities have a not-high relative connective rate and close centrality,which demonstrates their ordinary financial power and restricted impact on the network.As the country in initiating and promoting"the Road and Belt"proposal,it is so urgent to improve its financial power and impact.