成都市武侯区城市公园可达性分析

Accessibility of Urban Parks in Wuhou District of Chengdu City

公园可达性是评价一个城市公园空间分布格局是否合理和其社会服务能力的关键指标之一。文章采用网络分析法和熵权法对成都市武侯区城市公园的人均服务面积、服务面积比和服务人口比等指标进行量化分析,以对其可达性进行客观评价和可视化表达。结果表明:武侯区公园可达性整体呈现“东部高西部低”的不均衡格局;虽然在“30 min生活圈”内所有街道均可被城市公园服务范围覆盖,但在“15 min生活圈”下仅87.5%的街道位于城市公园服务覆盖范围内,直观地反映出武侯区城市公园的供给现状尚不能满足居民需求。研究结果为优化城市公园配置和补给其他类型的城市绿地提供数据支撑和理论依据。

Park accessibility is usually considered as an essential indicator for evaluating the spatial distribution patterns and the social service capabilities of urban park spaces.This paper makes a quantitative analysis of the service area per capita,the service to area ratio,and the service to population ratio of urban parks in Wuhou District of Chengdu City using network analysis method and the entropy method,and then makes an objective evaluation and visualized expression of the park accessibility.The results reveal that the park accessibility in Wuhou District generally presents an unequal spatial pattern of“high in the east and low in the west”.Although every community in the District can be covered by the service areas of urban parks in 30 min Life Circle,only 87.5%of the districts could be included into the service areas in 15 min Life Circle,which suggested that the services of urban parks are unequally supplied and structurally insufficient for meeting the needs of residents.This study provides data support and theoretical bases for optimizing the configuration of urban parks and supplementing other types of green space.