武汉市人口集聚特征及其空间分异机制分析

Analysis on the Characteristics of Wuhan Population Agglomeration and Its Spatial Differentiation Mechanism

当前人口集聚影响因素的研究多基于单因子影响力探讨,多因子及其交互作用方面的研究相对较少。鉴于此,本文以武汉市为例,引入地理探测器,分析不同因素和其交互作用对人口集聚的影响作用,为城市规划提供决策参考。结果表明:1)相比工作时段,休息时段人口相对分散,但中心空心化趋势不明显;2)从各因素的影响作用来看,第三产业企业密度、路网密度、房价、地铁站可达性等对人口集聚影响最大;3)人口集聚受到因子间交互作用影响明显,其中第三产业企业密度与房价以及第三产业企业密度与POI多样性的交互作用力最强。

The current research on the influencing factors of population agglomeration is mostly based on the discussion of single factor influence,and there are relatively few researches on multiple factors and their interaction.This article takes Wuhan as an example,introduces a geographic detector,analyzes the influence of different factors and their interactions on population agglomeration,and provides a reference for urban planning.the result shows:(1)As compared with the population in working period,the population is relatively scattered and spreads to the remote urban areas during the rest period,but the trend of hollowing the center is not obvious;(2)Humanities,science and technology are the most influential categories,followed by regional transportation and service facilities.The most influential factors are the density of tertiary industry enterprises,road network density,housing prices,subway station accessibility,police station accessibility and primary school accessibility,etc.;(3)The interaction between the various influencing factors is an enhanced relationship.The interaction between the density of tertiary industry enterprises and housing prices,and between the density of tertiary industry enterprises and the diversity of POI is the strongest.