1.湖北大学区域开发与环境响应湖北省重点实验室,湖北 武汉,430062
2.华中师范大学地理过程分析与模拟湖北省重点实验室,湖北 武汉,430079
3.深圳市城市空间规划建筑设计有限公司,广东 深圳,518039
孟滢滢,硕士,研究方向为国土空间规划。623173312@qq.com
于婧,博士,教授。yjing@hubu.edu.cn
收稿:2024-03-28,
纸质出版:2025-03-05
移动端阅览
孟滢滢,周思赜,聂艳,等.POI和夜间灯光融合数据用于城乡结合部空间划定的研究——以武汉市为例[J].武汉大学学报(信息科学版),2025,50(3):449-461.
MENG Yingying,ZHOU Size,NIE Yan,et al.Spatial Delimitation of Urban-Rural Fringe Based on POI and Nighttime Light Data: A Case Study of Wuhan City[J].Geomatics and Information Science of Wuhan University,2025,50(3):449-461.
孟滢滢,周思赜,聂艳,等.POI和夜间灯光融合数据用于城乡结合部空间划定的研究——以武汉市为例[J].武汉大学学报(信息科学版),2025,50(3):449-461. DOI:10.13203/j.whugis20220597
MENG Yingying,ZHOU Size,NIE Yan,et al.Spatial Delimitation of Urban-Rural Fringe Based on POI and Nighttime Light Data: A Case Study of Wuhan City[J].Geomatics and Information Science of Wuhan University,2025,50(3):449-461. DOI:10.13203/j.whugis20220597
城乡结合部边界识别是城乡精细规划与治理的基础工作,对于土地可持续利用、城乡一体化等进程具有推动作用。以往城乡结合部划分存在数据源单一、获取困难、时空分辨率低的不足,基于电子地图的兴趣点(point of interest,POI)和国家极地轨道伙伴关系(national polar-orbiting partnership,NPP)卫星的夜间灯光融合数据,构建NPP &POI综合指数;结合城乡空间结构关系,提出了一种新的城乡结合部空间识别方法。以武汉市为例,采用断裂点分析法识别空间突变点,求得城乡结合部边界,利用土地利用结构信息熵、归一化植被指数(normalized difference vegetation index,NDVI)以及人口密度数据对划定结果进行验证和比较,并对典型区域进行了野外实地校核。结果表明,相较于单独采用POI、夜间灯光和人口密度数据,NPP &POI综合指数考虑了夜间灯光与POI中设施类型、光照强度和分辨率差异,其划分识别出的城乡结合部边界准确度更高、时效性更强;相较于土地利用、景观等数据,NPP &POI综合指数更能表征城乡发展活力,定量识别出城乡潜在中心区与多层结构对于城乡基础设施的配置、产业分工、生态职能划分等研究具有参考意义。NPP &POI综合指数在城乡空间上的二次突变规律证实了城乡结合部作为城市扩张过程中产生的地域实体客观存在,为城乡三元结构理论提供了实证支撑。
Objectives
2
The identification of urban-rural fringe boundaries is a fundamental task for fine urban and rural planning and governance
and it plays a vital role in promoting sustainable land use and urban-rural integration. The traditional methods for delineating urban-rural boundaries have many limitations
such as reliance on single data sources
difficulty in data acquisition
and low temporal and spatial resolution.
Methods
2
This paper proposes a novel method for identifying urban-rural fringe boundaries
based on the fusion of points of interest (POI) from electronic map and nighttime light data of national polar-orbiting partnership (NPP) satellite
in conjunction with the spatial structure of urban and rural space. Taking Wuhan City as a case study
this paper employs break point analysis to identify spatial mutation points and determine urban-rural fringe boundaries. The results are validated and compared using land use structure entropy
normalized difference vegetation index
and population density data
with field verification conducted in selected typical areas.
Results
2
The results show that by considering differences in facility types
light intensity
and resolution in POI and nighttime light data
the NPP &POI composite index for boundary delineation offers higher accuracy and timeliness compared to the boundaries identified using POI
nighttime light
and population density data individually. NPP &POI data can more effectively reflect the vitality of urban-rural development compared to land use and landscape data. The quantitative identification of potential central areas and multi-layered structures in urban-rural settings is significant for research on urban-rural infrastructure allocation
industrial division
and ecological function distribution.
Conclusions
2
The secondary mutation pattern of NPP &POI data in urban-rural spaces confirms the objective existence of urban-rural fringe areas as territorial entities emerging from urban expansion
providing empirical support for the urban-rural triad structure theory.
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