Evolution and influencing factors of sustainable efficiency of port cities below Nanjing on the Yangtze River
The completion of 12.5 m deep water navigation channel in the lower reaches of the Yangtze River has an important impact on the development of port cities from Nanjing to Shang-hai.In this research,we put the port system and the urban system into a holistic analysis system framework,the sustainable efficiency of nine port cities below the Nanjing on the Yangtze River is calculated by using the two stage SBM-DEA Model.The results showed that the sustainable efficiency of different port cities was all increased from 2011 to 2019.In terms of spatial distri-bution,the sustainable efficiency fluctuates in some regions,and the oceanic port was higher than the inland ports.And the industrial structure and foreign trade volume have a significant positive impact on the sustainable efficiency of the port cities,but economic level,population density and the number of talents have a negative correlation with sustainable efficiency of port cities.The comprehensive research on Port Geography and Urban Geography would enrich the understanding about the port-city interaction,and hopes that could contribute to the future re-searches on the port city sustainable development.
deep water navigation channel of the Yangtze Riverport city developmentsus-tainable efficiencyimpact factorsport
NETL
NSTL
万方数据
