不同供给视角下徐州公园绿地社会服务供需关系研究

Supply-demand relation of social servicesin Xuzhou park greenlands from different supply perspectives

公园绿地空间布局与结构影响城市社会服务的供需关系,对保障居民休闲游憩需求至关重要。该文以徐州市各城区街道办事处为基本研究单元,采用平均最邻近距离、服务半径等方法,从不同供给视角探究公园绿地社会服务供需关系。结果表明:(1)从人均公园绿地面积供给角度看,公园绿地社会服务供需关系空间分布从中心到外围,呈现“高需低供-低需低供-低需高供”格局,不存在高需高供的街道;从500 m服务半径覆盖率供给角度看,各街道公园绿地服务供需关系从中心到外围,大致呈现“高需高供-高需低供-低需高供-低需低供”的分布格局。(2)公园绿地结构以及空间分布特征,决定了不同视角下供需关系的差异性。徐州人口密集的老城街道社区公园小微绿地的配置建设,使得其在人均公园绿地面积较低的情况下,保障了公园绿地服务覆盖率,提高了居民可达性,满足了休闲游憩需求。

Spatial layout and structure of green space affect the supply and demand of urban social services,which is crucial to guarantee residents’recreational needs.In this paper,the subdistrict offices in Xuzhou were taken as the basic research unit,using the average nearest neighbor distance methods to explore the relationship between supply and demand of social services in parks from different supply perspectives.The results showed that(1)From the supply perspective of per capita green area,the spatial distribution of social service supply and demand showed a pattern of“high demand and low supply-low demand and low supply-low demand and high supply”from the center to the periphery.Based on the perspective of 500 m service radius coverage,the supply-demand relationship of parks services in each street was roughly from the center to the periphery.The distribution pattern was the“high demand and high supply-high demand and low supply-low demand and high supply-low demand and low supply”.(2)The structure and spatial distribution characteristics of parks determined the difference of supply and demand under different perspectives.The configuration and construction of small and micro green space,in the densely populated community of Xuzhou,ensured the service coverage of parks,improved the accessibility of residents and met the residents’recreational needs under the condition of low per capita green area.