基于POI数据的兰州市主城区生活服务业空间分布特征研究

Research on the Spatial Distribution Characteristics of Life Service Industry in the Main Urban Area of Lanzhou City Based on POI Data

基于兰州市主城区POI数据,运用ArcGIS空间分析方法、探讨了研究区内生活服务业的空间分布特征。结果表明:①研究区内各类生活服务设施的空间布局存在明显的区域差异,东部和中部较密集,西部和南部分散,形成以“老城区”为核心、连片组团、多中心发展的空间布局;②兰州市城关区中心地带生活服务设施配套较为合理,西固区、安宁区、七里河区生活服务设施配套较差,有待优化改善;③兰州市主城区生活服务设施分布方向受地形影响均呈现出显著的西北-东南走向;④不同服务业在空间分布上显示出较强的相关性;⑤兰州市主城区生活服务设施混合度普遍较高,这得益于其“两山夹一川”的地形特征。

Based on the POI data of the main urban area of Lanzhou City,this paper uses the ArcGIS spatial analysis method to discuss the spatial distribution characteristics of the life service industry in the study area.The conclusions are as follows:①There are obvious regional differences in the spatial distribution of various types of life service facilities in the study area,which are dense in the east and middle,and scattered in the west and south,forming a spatial layout with the"old city"as the core,contiguous clusters,and multi-center development.②The supporting facilities of life service facilities in the central area of Chengguan District of Lanzhou City are relatively reasonable,while the supporting facilities of life service facilities in Xigu District,Anning District and Qilihe District are poor and need to be optimized and improved.③The living and service facilities in the main urban area of Lanzhou City show a significant northwest-southeast trend due to the influence of topography.④The spatial distribution of different service industries showed a strong correlation.⑤The mixing degree of living and service facilities in the main urban area of Lanzhou is generally high because of the topographic characteristics of"two mountains and one river".