京津冀县域综合交通可达性与区域经济空间耦合

Spatial Coupling between Comprehensive Traffic Accessibility and Regional Economy in Beijing-Tianjin-Hebei Region

以京津冀150个县域单元为研究对象,构建综合交通可达性和区域经济评价模型,借助耦合协调度测度方法,探讨交通可达性与区域经济的交互作用,以期为推动京津冀协同发展提供借鉴。结果显示:京津冀县域交通可达性形成以京津石为中心的高值区域,基本向山区、南部平原递减;县域经济水平地区差异较大,京津唐廊地区县域经济水平较高,燕山—太行山区、冀中南平原县域经济水平较低;交通可达性与区域经济具有高度耦合特征,协调度差异较大,形成高度耦合–高度协调、中度协调、勉强协调、轻度失调、中度失调等5种耦合协调类型,74%的县域单元属于高度耦合–轻度、中度失调类型,耦合协调度较高的区域主要分布在京津唐廊和石家庄等经济发达、交通便利的区域。

Taking 150 county units of Beijing-Tianjin-Hebei Region as the objects, constructing comprehensive traffic accessibility and regional economic evaluation model, and using the coupling coordination degree measurement method, the essay explores the interaction between traffic accessibility and regional economy, in order to promote the coordinated development of Beijing-Tianjin-Hebei region. The results show that:(1) the county traffic accessibility of the region has a high-value area centered on the Beijing-Tianjin-Shijiazhuang area, which is basically decreasing toward the mountainous area and the southern plain;(2) the regional economic level varies greatly, the Beijing-Tianjin-Tangshan-Langfang area has a high level of county economy, and the Yan MountainTaihang Mountain area and the Central and Southern Plains have a low economic level;(3) the traffic accessibility and regional economy are highly coupled, and the degree of coordination is quite different, which forming a high degree of coupling-highly coordinated, moderately coordinated, reluctantly coordinated, slightly misaligned, moderately misaligned, and so on. And 74% of county units are highly coupled-slightly and moderately misaligned. The areas with high degree of coupling coordination are mainly distributed in economically developed and convenient transportation areas such as Beijing-Tianjin-Tangshan-Langfang and Shijiazhuang.