高铁发展对城市对间联系的影响及异质性研究——以南京市为例

快速发展的高铁网络对区域社会经济产生了巨大影响,而高铁发展对具有不同属性的城市对间联系的影响机制仍亟需探讨.论文选取南京市2000-2019年全行业的企业对外横向投资联系数据,测度以南京市为核心的城市间经济联系变化,在揭示城市对间联系格局的基础上,定量识别和分析了高铁因素对不同属性城市对影响的异质性.研究表明:①南京市...

Impact of high-speed railway network on inter-city connections and its heterogeneity:Taking Nanjing City as the center of network

The fast-growing high-speed rail network has a deep impact on regional socioeconomic systems. This study used the external horizontal economic linkage data of the whole industry in Nanjing City from 2000 to 2019 to measure the change in the economic linkages between Nanjing and other cities. On the basis of revealing the connection patterns and changes between city-dyads, the study quantitatively identified and analyzed the heterogeneity of the impact of high-speed rail on city-dyads with different attributes. The results show that: 1) The strength of the connections between Nanjing and different cities across the country exhibits obvious hierarchical, regional distribution, and portal characteristics. 2) The difference in economic development level and the strength of the transportation connection between city-dyads are the key influencing factors of the strength of the connections. The development of high-speed rail strengthens the connections between city-dyads and to a certain extent aggravates the polarization of the geographical pattern of connections. 3) The high-speed rail shows obvious heterogeneity in the degree of impact on different types of city-dyads. City-dyads with short time distances, high degree of cooperation guided by government policies, large differences in GDP, and small differences in innovation capacity are more likely to benefit from the development of high-speed rail. According to the conclusions of this research, it is possible to intervene and guide specific cities to participate in the construction of urban networks. Under the influence of the high-speed rail, city-dyad may further directionally drive the flow of factors between cities.