Research On The Modeling And Structure Of The Regional Network Of China And The Five Central Asian Countries

In the context of economic globalization,cooperation and exchanges between countries and regions around the world have deepened.Due to the current world situation and economic environment,it is urgent to seek new ways of economic growth.,The Belt and Road"strategy was born.Since China put forward the"The Belt and Road"strategy,it has received the attention of all countries and the regions along the line have responded and cooperated.As a top-level strategy at the national level,China also attaches great importance to it.As an important part of"The Belt and Road"strategy,"Silk Road Economic Belt"has promoted the economic development of Asian and European countries.The five countries of Central Asia are located at the junction of Asia and Europe,and have rich mineral resources and energy resources.The economic interests and political game areas of the world's great powers,how to promote the cooperation and development between China and the five countries of Central Asia has always been a major concern.The development of cooperation between countries is carried out in a specific nature or between regions.Therefore,studying the relationship between China and the five countries of Central Asia is an indispensable link for the joint construction of the"Silk Road Economic Belt".The five countries of Central Asia are all developing countries.Most of the regions are located in political negotiation areas and military-prone areas.The statistics of the official departments of the state have certain deviations,and the acquisition is difficult.Even if acquired,there may be limitations of data incompleteness.Therefore,it is necessary to use the nighttime lighting data observed by satellite remote sensing DMSP/OLS to explore the relationship between China and the five countries of Central Asia.The DMSP/OLS nighttime light data can fully represent the urbanization,population distribution,energy consumption and vegetation ecology of the region.And the natural disasters and other aspects of monitoring human activities have certain objectivity.Therefore,based on DMSP/OLS nighttime lighting data,it is an effective data to study the correlation between the poor and backward regions of the five countries of Central Asia and China.Cooperation and exchange between regions often have complex associations,continuous agglomeration and proliferation,and continuous interaction between regions to form complex networks between regions.To identify important areas from regional complex networks,complex network science must be fully utilized,combined with knowledge of graphs and networks to identify key node areas.Based on the above considerations,this paper studies the regional cooperation between China and the five countries of Central Asia in the"Silk Road Economic Belt"from the inter-regional relationship.First of all,this paper reviews the connotation and application research of the previous regional networks,and focuses on the application of regional network modeling.Secondly,based on the DMSP/OLS nighttime lighting data,combined with the regional scale model and the regional role model,this paper constructs the regional network model of the"Silk Road Economic Belt"China and the five countries of Central Asia.Then use the central metrics of the complex network theory,the nuclear structure metrics,and the basic support structure to measure the three index systems.and analyze the regional network center metrics from the centrality,the intermediate centrality,the near-centrality and the eigenvector centrality,respectively,from the main core,The central core,strong core,weak core and marginal core explore the regional network nuclear structure metrics,and study the regional network support structure metrics from the root zone,the trunk zone,the branch zone and the leaf zone.Finally.based on the analysis of regional networks and network metrics constructed above,we identified the key regional belts of China and the five countries of Central Asia,and provided the basis for the positioning of China and the five countries of Central Asia in the"Silk Road Economic Belt"strategy.In this wa,we will jointly promote China and the five countries of Central Asia cooperate and develop.