基于多源数据的郑州市城市功能区分布与人口活动规律的研究

A Study on the Distribution of Urban Functional Zones and Population Activity Patterns in Zhengzhou City Based on Multi-Source Data

摘要: 城市功能区与人口活动的时空特征是城市规划领域的重要研究内容，从精细尺度识别城市功能区并揭示其人口活动规律，对于城市规划和资源配置具有重要意义。本研究以郑州市主城区为研究区，基于兴趣点、路网、多时相百度热力图等多源数据，采用核密度分析法识别城市功能区分布，并通过空间关联分析探讨城市功能区人口活动的时空聚散模式。研究结果表明：1) 郑州市主城区城市功能区呈现圈层式多中心结构，分布不均衡且类型特征显著；2) 城市人口活动在工作日与周末呈现系统性差异，具有明显的时空波动特征；3) 城市功能区与人口活动之间存在显著空间相关性，商业区是人口集聚与流动的主要载体。本研究为理解城市空间结构提供了数据支持与方法参考，对优化城市空间布局和促进职住平衡具有重要实践价值。

Abstract: The spatiotemporal characteristics of urban functional zones and population activities are important topics in the field of urban planning. Identifying functional zones and revealing population activity patterns at a fine scale are of great significance for urban planning and resource allocation. This study takes the main urban area of Zhengzhou City as the research area, using multi-source data such as points of interest (POI), road networks, and multi-temporal Baidu heat maps. Kernel density estimation was employed to identify the distribution of urban functional zones, and spatial correlation analysis was applied to explore the spatiotemporal aggregation and dispersion patterns of population activities within these zones. The results show that: 1) The urban functional zones in Zhengzhou’s main urban area exhibit a multi-centric ring structure with uneven distribution and distinct zonal characteristics; 2) Urban population activities show systematic differences between weekdays and weekends, with significant spatiotemporal fluctuations; 3) There is a strong spatial correlation between urban functional zones and population activities, with commercial districts serving as the main hubs of population gathering and mobility. This study provides data support and methodological references for understanding urban spatial structure and offers practical insights for optimizing urban layout and promoting jobs-housing balance.