Spatial Association Network And Influence Of High Quality Development Of Cities In The Yellow River Basin Factors

With the rapid economic takeoff since the reform and opening up,China’s economy has shifted from the stage of high speed growth to the stage of high quality development.High-quality development is to meet the people’s growing needs for a better life as the goal of high-efficiency,fair and green sustainable development,to promote high-quality development has become the "14th Five-Year Plan" and even a longer period of economic development theme.The Yellow River Basin is an important ecological barrier and economic zone in China,an important area for winning the battle against poverty,and a pivotal position in China’s economic and social development and ecological security.It plays a key role in promoting the highquality development of the regional economy.As the organizer and manager of regional economy and society,cities promote the concentration and flow of regional population,resources,information and other factors.In the context of deepening informationization and urbanization,cities gradually break the original boundary restrictions and transform into relational networks.Therefore,it is of great theoretical value and practical significance to explore the high-quality development status,relationship patterns and spatial organization structure of cities in the Yellow River Basin from the perspective of urban association networks.This study takes 79 prefecture-level cities in the Yellow River Basin as the research object,constructs the index system of high-quality development of cities in the Yellow River Basin based on supply,demand and path,measures the level of high-quality development of cities from 2005 to 2018 by entropy method,based on this,analyzes the spatial and temporal evolution by ESDA analysis method and Thiel index decomposition method,and takes this as the background and data support,and through the modified gravitational model and social network analysis method to explore the overall network characteristics and individual network characteristics of high-quality development of cities in the Yellow River basin,and finally,QAP analysis method to explore the influencing factors of the correlation network.The study found that.(1)The high-quality development of cities in the Yellow River Basin shows a significant imbalance between the low west and high east.Provincial capital cities,sub-provincial cities and central cities occupy obvious advantages and are in the forefront of development.The spatial correlation is not very significant,and there is a local spatial agglomeration situation.Zhengzhou and Xi’an show strong development momentum.The overall regional economic differences show a slow decreasing trend,mainly subject to the influence of economic differences within the upstream,midstream and downstream,which are: downstream >midstream > upstream.(2)The overall network structure is formed with Zhengzhou,Xi’an,Jinan and Taiyuan as the hubs and Yinchuan,Lanzhou and Hohhot as the core of the provincial capital cities radiating to the surrounding cities.The network is highly accessible and relatively stable,and there is no hierarchical network structure.The first-and second-tier networks gradually expand,while the third-and fourth-tier changes are small.The cities of Shandong and Henan in the central and eastern regions have formed an association network based on the third and fourth level connections and supported by the first and second level connections,while the cities of Ningxia,Gansu and Qinghai in the western region have the third and fourth level connections as the main body and the connections are relatively sparse,and Shanxi and Shaanxi have built an association network with Henan supported by the third and fourth level connections.(3)The nodes of the city network have obvious characteristics of polarization.Zhengzhou,Taiyuan,Jinan and other central and eastern provincial capital cities show obvious "radiation effect" and good "transit capacity";Puyang,Heze,Jiaozuo,Shangqiu,Anyang,Xinxiang and other cities at the border of Henan,Shandong and shanxi have strong absorption capacity and produce significant "siphon effect";most cities in the Central Plains and Shandong Peninsula city clusters have comparable radiation and attraction capacity;some cities in Gansu,Qinghai and Ningxia are at the edge of the network and are limited by the geographical proximity effect,forming low-value contiguous areas;the Central Plains city cluster in the middle of the network plays the "central actor The Central Plains urban agglomeration in the middle of the network plays the role of "central actor".(4)The 79 cities are divided into four different types of plates and strong linkage effects are formed between the plates.The spillover effects of the plates are mainly intra-plate spillover,and there are fewer links between plates.The role changes in the four time nodes are small.The Shandong Peninsula urban agglomeration directly spills over to the Central Plains urban agglomeration and Taiyuan urban agglomeration as a "growth pole" for high-quality development,and uses these two regions as "intermediaries" and "bridges" to At the same time,it receives resources and energy export from them to meet economic needs.The overall spatial correlations show a "trapezoidal" spillover characteristic.(5)Differences in location conditions,transportation infrastructure,industrial structure,intensity of government support,and science and technology innovation have a significant impact on the evolution of urban networks for high-quality development in the Yellow River Basin.Based on the above research methods and conclusions,in order to promote the high-quality development of the spatially linked network in the Yellow River Basin,it is recommended to establish a coordinated development mechanism in the Yellow River Basin from the perspective of overall regional coordination;to bring into play the role of growth poles of provincial capital cities such as Zhengzhou,Xi’an and Jinan to drive the high-quality development of neighboring cities as well as the whole basin;to strengthen the construction of urban transportation infrastructure,to enhance industrial collaboration and transfer;to strengthen the regional Policy support and guidance for high quality development.