摘要
城区活力的营造是围绕空间环境以及人文活动展开的,这些要素对于城市街区活力具有引导作用。为客观认识城市街区活力形成的影响机制,文章选取了赣州市河套老城区,以道路为界线对街区进行划分,以百度热力图、POI数据、遥感影像数据为基础,测度不同时段的河套老城区中街区活力特征的空间变化,利用地理探测器模型分析空间形态、功能强度、环境品质、心理感知及基础设施建设对于街区空间活力的影响机制。结果表明:①街区活力空间形态在一天中经历了分散-集中-再集中-分散的变化;②人群的集聚在休息日集聚性较强,工作日集聚时间更长;③单因子对于街区综合活力的影响解释力最强的是交通可达性;④任意选取两因子交互探测,对于街区活力的影响都要比单因子更强。
The creating of urban vitality is carried out around the space environment and human activities.Both factors play a guiding role in the vitality of urban blocks.In order to objectively understand the influence mechanism of the formation of urban vitality at the street blocks,this paper selects the old urban area of Hetao in Ganzhou City.Dividing the blocks with the road as the boundary,it measures the spatial change of the vitality characteristics of the middle street area in Hetao urban area in different periods based on Baidu thermal map,POI data and remote sensing image data,and analyzes the effects of the spatial morphology and urban function,environmental products quality,psychological perception and infrastructure on urban vitality at the street block by using geographical detector model.The results show that:①The spatial pattern of block vitality experiences the change from dispersion,centralization to re-centralization and dispersion in one day;②The concentration of crowd is stronger in weekends and holidays,but longer in workdays;③Traffic accessibility is the most powerful explanation for the influence of single factor on comprehensive vitality of blocks;④Arbitrary selection of two factors interactive detection has more influence on block vitality than single factor.
作者
李夏天
温小军
LI Xiatian;WEN Xiaojun(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)
出处
《江西理工大学学报》
CAS
2021年第1期38-46,共9页
Journal of Jiangxi University of Science and Technology
基金
江西省社会科学规划项目(18SH09)。
关键词
城市活力
多元数据
地理探测器
影响机制
河套老城区
urban vitality
multiple data
geographical detector
impact mechanism
Hetao urban area
