Research on the evolution of innovation network and environmental pollution effects in Henan-Shandong region of the lower Yellow River
The primary driver of urban and regional development is innovation.To strengthen regional innovation cap-abilities,it is necessary to establish an innovation network.The research of this paper focuses on Henan-Shandong region of the lower Yellow River.The study utilized a modified gravity model to establish an innovation network among cities.Subsequently,social network analysis was used to examine the spatial network's features and evolution between 2014 and 2022.Furthermore,this paper aimed to examine the impact of the innovation network on the environment of Henan-Shandong region of the lower Yellow River.Overall,this paper indicates that the innovation network in Henan-Shandong region of the lower Yellow River is gradually developing at a higher level.However,there is a clear disparity in the spatial distribution,and innovation network is still in its early stages of growth.In terms of sub-regions,the spatial distribution of bifurcation phenomena within innovation network in Henan Province shows a distinct"mi"-shaped pattern.In contrast,the innovation network in Shandong Province ex-hibits a higher overall level compared to Henan Province,indicating a more equitable distribution of innovation resources.The main hubs of the network are identified as Zhengzhou,Jinan,and Qingdao.Zhengzhou and Qingdao are identified as crucial nodes having a significant impact on the overall stability of the network.Furthermore,Zhengzhou,Jinan,and Qingdao lead a"three-core"innovation network structure,as evidenced by the cohesive subgroups observed in the research area.While admin-istrative obstacles have not entirely disappeared,these subgroups tend to be closely linked.In Henan-Shandong region of the lower Yellow River,the relationship between innovation network and environmental pollution exhibits an inverted"U"shape.The inflection point represents the moment when innovation network starts to effectively reduce environmental pollutants and enhances environmental quality.During the early stages of innovation network development,environmental pollution tends to increase due to factors such as openness,economic status,and population growth.Nevertheless,increasing investment in eco-logical governance and optimizing industrial can effectively mitigate.
万方数据
维普
