成都市机构养老设施空间分布及可达性研究

Spatial distribution and accessibility of institutional old-age care facilities in Chengdu

针对目前养老机构可达性研究尺度过大影响区域可达性评价问题,该文以成都市养老机构为研究对象,基于多源数据构建随机森林模型将成都市2020年常住人口格网化,运用改进的两步移动搜索法对成都市养老机构空间可达性进行分级测算,结合空间自相关分析探讨养老机构供需空间格局及其空间分异特征。结果表明:成都市养老机构可达性整体较好,但圈层差异明显。中心圈层可达高,边缘圈层农村山地区域可达性较差;可达性与老年人口Moran’s指数为0.331,呈显著正相关,表明养老机构基础配置合理。

Aiming at the problem that the current accessibility research scale of elderly care institutions is too large to affect the regional accessibility evaluation,this paper took Chengdu pension mechanism as the object,based on multi-source data built a random forest model of Chengdu in 2020,the population of permanent residents in grid handling,using the improved two-step mobile search method to Chengdu pension agency calculates hierarchical spatial accessibility.The spatial pattern of supply and demand of aged care institutions and their spatial differentiation characteristics were explored in conjunction with spatial autocorrelation analysis.The findings demonstrated that Chengdu’s senior care facilities were typically easily accessible,however there were clear discrepancies in the circle.The central circle can extend far,however the periphery circle was difficult to approach in remote mountainous places.The basic distribution of pension institutions was reasonable,as shown by the considerable positive connection between accessibility and Moran’s index of the aged population,which was 0.331.