基于POI数据的城市功能区识别及其空间分布特征——以珠海市中心城区为例

Identification and spatial distribution characteristics of urban functional areas based on multi-source data:A case study of the central urban area of Zhuhai

为了探究城市功能区的空间分布特点,基于兴趣点(POI)数据构建城市功能区定量识别体系,分析珠海市中心城区城市功能区的空间分布特征.结果表明:①珠海市中心城区的功能区普遍具有明确的主导功能,且呈现“中心居住,外围工业,混合分散”的分布格局.②“单一”和“混合”功能区交错分布的地区主要集中在珠海市中心城区北部.③混合功能区多表现为居住和商业服务设施功能的混合,呈现出“商住联动”特征.

In order to explore the spatial distribution characteristics of urban functional zones,a quantitative identification sys-tem for urban functional zones was constructed based on point of interest(POI)data,and the spatial distribution characteris-tics of urban functional zones in central urban area of Zhuhai were analyzed.The results showed that:①The functional zones in the central urban area of Zhuhai generally had clear dominant functions,and exhibited a distribution pattern of"central residen-tial,outerring industrial,extensive mix."②The areas with alternating distribution of"single"and"mixed"function areas were mainly concerntrated in the northern part of the central urban area of Zhuhai.③Mixed functional areas were often characterized by a combination of residential and commercial functions,exhibiting a"commercial residential linkage"feature.