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作 者:罗虹[1] 赵政权[1] LUO Hong;ZHAO Zhengquan(College of Land and Spatial Information,Yunnan Land and Resources Vocational College,Kunming 652501,China)
机构地区:[1]云南国土资源职业学院国土空间信息学院,昆明652501
出 处:《河南科学》2021年第4期619-625,共7页Henan Science
基 金:云南省地矿局科技创新基金资助项目(2017JJ04)。
摘 要:夜光数据和兴趣点能间接反映地表人类的经济活动.以2019年3月珞珈一号夜光数据和兴趣点为基础,选取昆明市主城区的五个区域为研究区域,采用核密度分析、六边形规则格网、归一化处理及双因素制图法进行两种数据的耦合分析,探讨了城市耦合的相合及相异区域.研究表明,选定的昆明市主城区五个区域的珞珈一号夜光数据强度值与POI核密度值整体耦合性良好,有将近90%的相一致区域,但也有一部分区域呈现相异耦合关系,如:乡镇中心、城郊、次级商业区、机场、新开发区等区域,这些区域对城市空间结构的细化有重要的研究价值.兴趣点与夜光数据相结合,可以进一步反映城市空间结构特征,也为西部地区城市空间结构的研究提供一种新的视角.POI and nighttime light data can indirectly reflect human economic activities on the surface.Based on the nighttime light data of Luojia No.1 and POI data in March 2019,this study selects the five areas in the main urban area of Kunming City as the research area,uses the methods of kernel density analysis,hexagonal regular grid,normalization processing and double factor gradual change mapping to analyze the coupling of the two kinds of data,and discusses the consistent and different areas of urban coupling.The results show that the spatial coupling of the two hinds of data is highly consistent.There are nearly 90%of the regions that have good coupling,but some areas show different coupling relations,such as township centers,suburbs,secondary business districts,airports,and new development zones.These areas have important research value for the refinement of urban spatial structure.The combination of POI and nighttime light data can further reflect the characteristics of urban spatial structure and provide a new perspective for urban spatial structure in western China.
分 类 号:F291.4[经济管理—国民经济] P237[天文地球—摄影测量与遥感]
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