Research On The Pattern Change Of China's Ports From 2007 To 2016 Based On Shift-Share Analysis

On the basis of sorting out the development and construction of China's ports,this paper takes the main ports with a throughput of more than 100 million tons in 2016 as the research object.Taking the sub-category throughput and the total throughput of the main ports as the analysis indicators,the Findel-Hirschman index,the port location index,and the shift-share analysis method are used to analyze the pattern changes of major ports in the sub-category transportation system,so as to explore the characteristics of China's port pattern changes.The concentration and decentration analysis of the port pattern shows that China's major ports have been decentralized in the decade of 2007-2016.According to the analysis of the port location quotient in the sub-category transportation system,the fluctuations of the port location index of mining materials is much obvious than that of the four major categories of oil products,metal ore,coal and related products,and containers.The results of shift-share analysis show that among the major coastal port groups,the ports in the southeast coastal port group and the southwest coastal port group have relatively balanced development in the main cargo throughput,and the status changes in the sub-category transportation system are slightly.The ports within the five port groups of Liaoning coastal port group,Tianjin-Jinhai coastal port group,Shandong coastal port group,Yangtze River Delta port group and Pearl River Delta port group are highly competitive,which is the major factor of changes in the regional and even national related cargo transportation system.In addition,China's coastal ports have formed a relatively complete sub-category transportation system,but the sub-category transportation system of coastal ports is in the process of structural adjustment.Regional ports such as Tangshan Port,Yingkou Port,Suzhou Port,Huanghua Port and Dandong Port The throughput of ports such as Taizhou Port in a certain cargo category or multiple cargo categories is relatively strong,and its position in the relevant cargo transportation system has been greatly improved.