A Case Study of the Structural Characteristics and Influenc-ing Factors of Urban Recreational Space Based on POI Data
In the era of mass tourism,daily leisure has become a new norm in people's lives.As a carri-er for recreational activities,the shaping of urban recreational spaces is of great significance for releas-ing the multiple values of urban space and enhancing the happiness of people's lives.This article is based on POI data and uses such methods as radius of gyration,spatial distribution curve,and kernel density estimation to study the structural characteristics and influencing factors of recreational spaces in Hefei.The results indicate that:(1)The distribution of recreational space in Hefei has obvious circu-lar characteristics,presenting a dual ring agglomeration structure.The downtown within 20 km from the city center and the surrounding area within 60~70 km are the core areas to carry recreational activ-ities.(2)There are significant differences in the spatial clustering characteristics of various types of recreational areas.Natural ecology,cultural sightseeing,and commercial entertainment areas are most-ly clustered near the city,while sports and leisure areas are densely distributed in the urban-rural bor-der,with strong dependence on mountains,rivers,agriculture,and forestry resources.(3)The overall recreational space of the city deviates towards the northwest-southeast direction,and the distribution center of recreational areas shifts towards the direction of Chaohu Lake,which is in line with the direc-tion of urban development.(4)Resource endowment,market demand-supply,and policy planning are important factors that affect the formation of Hefei recreational space.The structure of the recreational space is the result of increased supply of recreational facilities driven by market demand,rich and di-verse recreational formats,and spontaneous agglomeration of recreational sites in the overall pattern of urban development.