Study On The Innovative Space Relationship In The Yangtze River Delta Urban Agglomeration

Under the new normal of China's economic development,in the face of a complex domestic and international environment,in-depth development of innovation-driven development strategies will provide lasting momentum for economic and social development.The innovation activities in a region do not develop in isolation.The spatial connection of innovation between regions provides more and more impetus for the development of regional innovation.Therefore,this paper uses the research on the innovative spatial linkage of the Yangtze River Delta urban agglomeration to improve the region.The level of innovation capability and optimization of regional innovation networks are of great significance for the realization of innovation-driven strategies.This paper uses gravitational model to calculate the strength of innovation space connection,and builds a model of the effect of innovation space connection on regional innovation performance.The results show that the innovative spatial connection has a positive role in promoting regional innovation performance,strengthens the spatial connection of urban innovation,and enhances regional Innovation performance is of great significance.The innovative spatial linkage structure influences regional innovation performance by affecting the innovative spatial connections among cities in the Yangtze River Delta cities.Based on the analysis of the characteristics of the Yangtze River delta urban agglomeration innovative economic spatial network,relevant policy recommendations are proposed.Firstly,build an innovation capability evaluation index system and calculate the city's innovation ability scores using the entropy weight method.It is found that there are great differences in the innovation ability of the Yangtze River Delta city group,and there are obvious grade differences;secondly,the innovation space based on technology distance is constructed based on urban innovation capacity.The strength matrix of linkage,the connection of the Yangtze River delta urban agglomeration innovation economy mainly revolves around several important nodes,and gradually forms the network hierarchy structure of multi-level innovation spatial connection.The Yangtze River Delta urban agglomeration innovation space has basically formed the core of the regional innovation and contact network with Shanghai and Nanjing,and has gradually formed a multi-level regional innovation and connection network structure.The rise of secondary cities such as Suzhou,Hangzhou,and Wuxi is also in the Yangtze River Delta.Urban groups play an important role in the connection of innovative economies.From the perspective of innovation spatial connection overall structural characteristics.In the innovative economic space network,the internal nodes of each city have a high degree of correlation and high correlation efficiency.However,the overall density of the network is low.The Yangtze River Delta urban agglomerations have a low level of connection space for innovation and are at a low level of linkage;the Yangtze River Delta urban agglomeration innovation space The lack of integrated linkage between linkages is mainly due to the unbalanced level of urban innovative economic development within the urban agglomerations,especially the severe imbalance in the level of innovative economic development between Anhui Province and Shanghai Municipality,Jiangsu Province,and Zhejiang Province,plus the administrative division of administrative divisions.Barriers make the spatial integration of the Yangtze River delta urban agglomeration economy less cohesive,which hinders the overall development level of the network;the Yangtze River delta urban agglomeration has an obvious hierarchy of innovation spatial contact networks,and it is more dependent on the central node cities,and has more Many cities are in marginal areas,and the central cities do not promote them.According to the characteristics of innovative spatially connected subjects,the urban agglomerations in the Yangtze River Delta have radiation capabilities for other urban agglomerations,but their radiation range is limited,and they cannot fully realize the ability of node cities to innovate and diversify.The innovative agglomeration polymerization capability needs to be improved.The hierarchical structure of the group is obvious.The core node cities play an im-portant role,but the subordinate node cities have significantly different centrality compared with the core node cities.Most of the cities do not have the ability to control other cities;the core node cities are in contact with innovation space.The network has a greater ability to use structural holes,but it needs to be improved.Although cities in peripheral regions have less external and internal links,they also have less redundant information,resulting in a larger number of structural holes that can be used to achieve this advantage.Join the core area and restructure the network.From the point of view of innovative spatial connection agglomeration,the innovation linkages between cities in the Yangtze River Delta are mainly centered around the core node cities,individual cities are isolated,and there is insufficient connection with other cities within the urban agglomeration;the Yangtze River delta urban agglomeration has an obvious connection network of innovative economic space.The core-periphery structure,with more cities in convenience and regions,close links between cities in the core region,loose connections within the borders,and low contact strength between the core and marginal areas;linking the Yangtze River Delta urban agglomeration to an innovative economic space The network is divided into five groups and it is found that only two groups in the Yangtze River Delta urban agglomeration have strong intra-group innovation information,and the innovation economy is more closely linked.The remaining three intra-group innovation information flows are relatively weak.Loose spatial linkages;only four groups have a close spatial connection for innovation,and the intensity of innovation linkages between the groups is high,while the remaining one group is isolated,and the spatial connection between innovation and other groups is loose.Finally,according to factional analysis,13 factions with the basis of innovative economic cooperation are expected to achieve Innovation and Economic Cooperation domain.To promote the overall development level of the Yangtze River delta urban agglomeration in terms of innovation,it is necessary to adjust the internal structure of the network,strengthen the innovative links between cities,and increase the overall strength of the Yangtze River delta urban agglomeration.Through the study of the Yangtze River delta urban agglomeration innovation economic spatial con-nection network structure,the following policy recommendations are proposed based on the problems existing in the urban innovation space linkage at this stage: adjusting the innovation spatial linkage structure and promoting the improvement of regional innovation performance;accelerating the development of innovation capabilities in some cities,and advancing The urban community shall develop a balanced economy;enhance the inter-city exchanges and cooperation among the urban agglomerations to form a cross-city innovation cooperation mechanism;strengthen the nodal city training;construct a gradient-order regional innovation contact network system;promote the development of innovative clusters and promote the overall innovation of urban agglomerations Level.