高铁时空收敛视角下长三角经济联系的变化

本文以长三角地区为例,利用弗洛伊德算法计算城市间的时间距离,以此对经典经济联系指标进行修正,并研究2009—2019年间该区域高速铁路网产生的时空收敛现象及其对各城市间经济联系的影响。结果证实:样本期间长三角区域呈现出了较强的时空收敛现象;纵向看,各城市间经济联系总量和可达性值均表现出长三角城市群经济联系逐步增强的趋势,横向看,较早开通高铁的城市产生的时空压缩现象对其经济联系产生的影响更为明显。

Changes in Economic Relations in the Yangtze River Delta from the Perspective of High-speed Rail Spatiotemporal Convergence

This paper takes the cities in the Yangtze River Delta as an example area, uses Floyd - Warshall method to calculate the time distance between cities, and thus revises the classic economic connection indicators. Based on this, we study the spatiotemporal convergence in regional high-speed railway networks and its impact on economic ties between cities during the period from 2009 to 2019. The results confirm that the Yangtze River Delta region exhibited a strong spatiotemporal convergence during the sample period. At the same time, in the vertical dimension, the total economic connection and accessibility values of the cities showed a trend of increasing economic connection in the Yangtze River Delta city group; from a horizontal perspective, the effect of space-time compression on cities that opened high-speed rail earlier has a more significant impact on their economic ties.