【摘要】 利用手机信令数据，以京津冀城市群为研究范围，以250 m×250 m网格为基本单元，识别京津冀城市群人口时空分布与流动特征。结果表明：北京和天津是京津冀城市群的主要人口集聚中心，且人口分布呈现非均匀放射状、沿主要交通干线分布，人口密度由城市中心向周边递减；北京、天津和石家庄是人口流动网络的主要中心，其人口流量远高于其他城市；城市群范围内的县际人口流动增长迅速，各区县的职住空间不平衡也比较突出。更多还原

【Abstract】 This study examines the patterns of population spatial distribution and mobility in the Beijing-Tianjin-Hebei urban agglomeration by analyzing mobile phone data at a 250 m×250 m grid cell resolution. The research reveals that the population distribution center of the Beijing-Tianjin-Hebei urban agglomeration is mainly concentrated in Beijing and Tianjin, with non-uniform radiations along major transport arteries. Additionally, the population density decreases from the central cities to surrounding areas. Furthermore, the number of population flows in Beijing, Tianjin, and Shijiazhuang is significantly higher than that in other cities and surrounding counties. The inter-county population flow has rapidly increased. Also, there is an imbalance in job-housing space between districts and counties. This study reveals the spatiotemporal distribution and mobility patterns of the population in Beijing-Tianjin-Hebei, providing scientific reference for population management and regional governance in urban agglomerations.更多还原