武汉市多维度城市公园绿地空间公平性分析

以武汉市中心城区为研究区域，居民建筑为研究单元，基于步行、骑行及公共交通3种出行方式，从城市公园绿地数量、质量及可达性3个维度衡量每个建筑单元的公园绿地空间公平性水平。结果表明：① 3种交通方式下建筑单元的公园绿地公平性分布相差较大，但整体呈现由城中心沿江区域向外围辐射递减的分布特征；② 随着居民出行方式的升级，极限出行时间内居民的活动范围不断扩大，因此所享有公园绿地公平性水平逐步提升；③ 城市公园绿地资源与人口分布存在空间失配现象，多数公园绿地分布于城市中部，而南北部城郊区域分布较少，西北和西南部多数区域居民享有公园绿地公平性水平整体较差。

Spatial Equity of Urban Park Green Based on Multiple Dimensions in Central District of Wuhan

Urban park green is a public service resource which integrates economic, ecological and leisure functions. The fairness of urban park green spatial layout and resource allocation are significant to the quality of routine life and environmental optimization. The central district of Wuhan is taken as the study area and residential buildings as the research unit. Based on the three travel modes of walking, bicycle and public transportation, this article measured the equity of park green in residential building from the three dimensions of quantity, quality and accessibility. The results showed that: 1) The equity distribution of urban park green in residential building varies greatly under the three modes of transportation, but the overall layout features are decreasing from the area along the river of the city center to the periphery. 2) With the upgrading of residents’ travel mode, the range of residents’ activities in the limit travel time is expanding, so the equity level of the park green space enjoyed by residents are gradually improved. 3) There is spatial mismatch between urban park green resources and population distribution. Most parks are distributed in the middle of the city, and a few are located in the north and south of the suburbs. The equity levels of park green enjoyed by residents in the northwest and southwest is poor as a whole. In the future, cities should further optimize the spatial layout and quality of urban park green, and improve the convenience of suburban traffic to promote the construction of urban ecological environment.