Dynamic Evolution and Differences of Coordinated Development of China's Coastal Port Clusters
From the perspective of port group,the coupling cooperation degree model is used to estimate the coupling cooperation level of 46 major coastal ports and cities in China from 2000 to 2020.Kernel density analysis,Markov chain model and Dagum Gini coefficient decomposition were used to further analyze the dynamic evolution of coastal port and city collaborative development level of five major port groups and the differences among different port groups.The results show that:(1)From 2000 to 2020,the level of coordinated development of all port groups shows a fluctuating upward trend,and the overall Gini coefficient shows a steady downward trend.The phenomenon of mul-tipolar differentiation was obvious,it began to transition to unimodal and entered a steady development state.(2)The Gini coefficient of southwest port group decreased gradually,while the Pearl River Delta port group maintains a high level all the time.The year and amplitude of the Gini coefficient fluctuation of the Yangtze River Delta port group,the Bohai Sea port group and the southeast port group do not show unity.(3)From 2001 to 2020,the gap of coordinated development level among port groups has an alternating phenomenon of repeated rise and decline,but the overall trend is downward.It is suggested that through the guidance of government policies,strengthen and consolidate the internal coop-eration of port groups,effectively promote the horizontal cooperation of port groups,and optimize the spatial pattern of port groups,so as to promote the development of China's coastal port groups to the direction of high quality.
coastal portport groupcoordination between port and cityDagum Gini coefficient
NETL
NSTL
万方数据
