人口流动视角下京津冀城市群经济联系研究

A Study on the Economic Relations of the Beijing-Tianjin-Hebei City Group from the Perspective of Population Mobility

人口作为区域经济联系中最活跃的要素资源,对加强区域城市经济联系,形成合理的城市群空间结构具有重要意义。基于腾讯位置大数据,运用城市间人口流动数据改进引力模型,并结合城市中心职能强度模型和GIS技术,对京津冀城市群13个地级以上城市进行中心性研究和经济联系分析。研究结果表明:京津冀城市群人口流动方向与区域经济联系方向基本一致,体现出经济性与地缘性的特点;各城市经济联系强度存在明显差距并呈现等级特征,城市间中心性水平也存在同样特征;城市群经济联系初步形成“双核三轴多节点”的点轴格局。基于以上分析,建议从支持中小城市发展、加强节点城市建设、提高城市群整体通达度三方面加强未来京津冀城市群建设与发展。

As the most active factor in regional economic connections,population is of great significance for strengthening regional urban economic connections and forming a reasonable spatial structure of urban agglomerations.Based on Tencent location big data,using the inter-city population flow data to improve the gravity model,and combining with the urban center function intensity model and GIS technology,the study has analyzed the urban centrality and economic connections among 13 cities in Beijing-Tianjin-Hebei urban agglomeration.The results show features as follows.First,the direction of population flow in the Beijing-Tianjin-Hebei urban agglomeration is basically consistent with the direction of regional economic connections,which reflects the characteristics of economy and geopolitics.Second,the intensity of economic connection of each city has clear gap and presents the grade features.The same features exist in the central level between cities.Third,the economic connections between urban agglomerations have initially formed a point-axis pattern of“dual-core,three-axis and multi-node”.Based on the above analysis,the article puts forward three suggestions in terms of supporting the development of small and medium-sized cities,strengthening the construction of node cities,and improving the overall accessibility of urban agglomerations,hoping to serve the future construction and development of Beijing-Tianjin-Hebei urban agglomerations.