城市消费活力空间格局演化及驱动因素研究——以合肥市主城区为例

Research on Spatial Pattern Evolution and Driving Factors of Urban Consumption Vitality:a Case Study of the Main Urban Area of Hefei

以合肥市主城区为例,利用POI数据,结合核密度分析、平均最邻近指数、标准差椭圆,分析2012—2020年城市消费活力空间的演化进程,并利用地理探测器探究影响城市消费活力的驱动因素.结果表明:(1)消费活力空间格局由初始的“单核心扩散”演变为“多核心连面”,在空间形态上逐渐由点轴向块状空间形态演化.(2)在空间演化方向上,消费活力空间主要呈现“东北—西南”方向的发展趋势,南北向发展趋势较弱.(3)在空间演化速率上,2012—2016年城市消费活力空间的集聚程度增加,2016—2020年呈现减缓态势.(4)交通服务能力和公共服务水平对城市消费活力有较强的影响力,同时各驱动因素存在双因子增强的交互作用.

Taking the main urban area of Hefei as an example,using POI data and combining kernel density analysis,average nearest neighbor index,and standard deviation ellipse,the evolution process of urban consumption vitality space from 2012 to 2020 is analyzed,and the driving factors affecting urban consumption vitality are studied using geographic detector.The results show that:(1)The consumption spatial pattern has evolved from“single core diffusion”initially to“multi core connection”,gradually evolving from point axis to block spatial pattern in spatial form.(2)In terms of spatial evolution trend,the consumption vitality space mainly presents a development trend from northeast to southwest,while the development trend from north to south is relatively weak.(3)In terms of spatial evolution rate,the agglomeration degree of urban consumption vitality space increased from 2012 to 2016,and showed a slowing trend from 2016 to 2020.(4)The transportation service capacity and public service level have strong impacts on the urban consumption vitality,and there is a dual factor enhanced interaction among various driving factors.