高速铁路通达度与城市驱动力的时空耦合关系研究

Spatio-temporal Coupling Relations between the Accessibility of High-Speed Railway and the Urban Driving Forces in China

为了研究高速铁路与区域城市间的作用关系,根据高速铁路通达度与城市驱动力系统耦合作用的原理,以2008-2017年中国7个区域28个城市的高速铁路与经济数据为基础,通过耦合度计算模型分析了7个区域高铁通达度系统与城市驱动力系统的耦合协调关系,运用ArcGIS、GeoDa软件分析了二者的时空演变特征。研究结果显示:1)从时间尺度看,中国7个区域高铁通达度系统与城市驱动力系统的综合指数值逐年增长,但发展不均衡,城市驱动力系统在多因子作用下,综合指数值高于高铁通达度系统的综合指数值;2)从空间上看,中国7个区域的高铁通达度系统与城市驱动力系统的耦合协调等级空间极化现象明显,呈现东高西低的空间分异特征;3)华东地区为城市驱动力系统和高铁通达度系统协调发展的增长极,是高铁发展超前型地区,西北地区为两个系统的耦合协调低值区,华北地区两系统发展不均衡,华中地区为两系统发展同步型地区,西南地区为城市发展先导型地区,东北地区为两系统增长缓慢型地区,华南地区为高铁发展与城市发展协调互补型地区。基于此,提出了促进7个区域高铁通达度系统与城市驱动力系统协调发展的建议。

This paper focuses on the relationship between high-speed railway and urban driving forces of regional cities in China.According to the principle of coupling between accessibility of high-speed railway and urban driving forces,the coupling and coordination relationship between accessibility of high-speed railway system and urban driving force system in 7 regions of China is analyzed by the coupling degree calculation model based on the high-speed railway data and economic data selected from 28 cities in 7 regions of China from 2008 to 2017.By using ArcGIS and GeoDa software,the spatial and temporal evolution characteristics of the coupling coordination degree between the accessibility of high-speed railway system and the urban driving force system are analyzed.The results showed that:1) In terms of time scale,the comprehensive index values of accessibility of high-speed railway system and urban driving force system in 7 regions of China increased by years from 2008 to 2017,and the development of 7 regions in China was not balanced.Because of the multi-factor effect of the urban driving force system,the comprehensive index value of the urban driving force system is obviously higher than that of the accessibility of high-speed railway system.2) On the spatial scale,the coupling coordination levels of accessibility of high-speed railway system and urban driving force system showed evident spatial polarization of high value areas in the eastern China and low value areas in the western China.3) There are evident features in these 7 regions:East China with the advanced type areas of high-speed railway development is the growth pole of coordinated development of urban driving force system and accessibility of high-speed railway system;Northwest China is a low value area of coupling and coordination of the two systems;the development of the two systems in North China is unbalance;the comprehensive index value gap between the two systems in Central China is the smallest,and it is a synchronous area for the two systems;Southwest China is a leading region in the development of urban driving force system;Northeast China is a region with slow growth of the two systems;South China is a region with coordination and complementarity between accessibility of high-speed railway system and urban driving force system.Finally,this paper proposes an application of "polarization-trickle" theory,which can promote the balanced growth of accessibility of high-speed railway system and urban driving force system in 7 regions of China.