南京师大学报（自然科学版）2025，Vol.48Issue(4)：39-50,12.DOI:10.3969/j.issn.1001-4616.2025.04.004
基于多源开放数据的城市空间圈层结构识别与分析
Identification and Analysis of Urban Spatial Circle Structure Based on Multi-source Open Data:a Case Study of Hefei City
摘要
Abstract
The circle structure of urban space is a spatial phenomenon of urbanization development,and the urban core area,built-up area,and fringe area have ring structure characteristics.This paper uses the NPP-VIIRS nighttime light data,Gaode POI data,WorldPop population distribution data,and OSM road network data for stacked analysis to achieve the identification of urban spatial circle structure.The results show that:①The combination of multi-source open data can describe the spatial contours of the urban core area,built-up area,and fringe area,filling the gap of insufficient identification by single data.②The fuzzy logic analysis and ISODATA spatial threshold segmentation are used to identify and extract the urban spatial circle structure,and the generated results have been corrected and verified,which are consistent with the current built-up environment and can provide effective spatial reference for urban space-related studies.③The urban core area exhibits a multi-center distribution feature and is surrounded by the urban built-up area and urban fringe area.The extension of the urban fringe area is higher than that of the built-up area.④The development of urban form is strongly driven by road,and the main obstacle to urban expansion is the natural environment.关键词
多源开放数据/圈层结构/合肥市/城市核心区/城市建成区/城市边缘区Key words
multi-source open data/circle structure/Hefei City/urban core area/urban built-up area/urban fringe area分类
建筑与水利引用本文复制引用
邓景元,侯君..基于多源开放数据的城市空间圈层结构识别与分析[J].南京师大学报（自然科学版）,2025,48(4):39-50,12.基金项目
安徽省社会科学界联合会项目(JS2020AHSL0184). （JS2020AHSL0184）
