京沪高铁对沿线城市经济集聚的影响研究

Study on Influence of Beijing-Shanghai High-Speed Railway to Cities' Economic Agglomeration Along It

使用一个综合的经济集聚指数来描述经济集聚现象,并建立包含可达性指标的经济集聚模型,分析了京沪高速铁路对铁路沿线城市经济集聚的影响。总体来看,在京沪高速铁路的影响下,铁路沿线城市经济集聚水平有所提升,铁路沿线城市可达性每提升l%,可引起城市经济集聚指数0.572的相应增加。但是,京沪高铁对其沿线城市经济集聚水平有着不同的影响,不同城市其经济集聚指数变化方向亦不同,且经济集聚的格局趋向非均衡:经济实力较强的地区对经济实力较弱的地区产生"虹吸效应",但京津冀地区,北京开始对其周边沿线城市产生"辐射效应"。

The article uses an integrated economic agglomeration index to describe the economic agglomeration,and establishes an economic agglomeration model that contains accessibility index and analyses the influence of the Beijing-Shanghai high-speed railway to cities'economic agglomeration along it.In general,economic agglomeration level of these cities have improved because of Beijing-Shanghai high-speed railway.Accessibility of cities ascending 1%,that can increase economic agglomeration index of city about 0.572.However,Beijing-Shanghai high-speed railway does different influence on these cities.The direction of economic agglomeration index changing is different among these cities.Meanwhile,this pattern of economic agglomeration trends disequilibrium.Developed district produces“siphon effect”to backward areas,but in Beijing-Tianjin-Hebei region,Beijing produces“radiation effect”to its surrounding cities.