资源科学 ›› 2021, Vol. 43 ›› Issue (2): 390-402.doi: 10.18402/resci.2021.02.16

• 资源管理 • 上一篇    下一篇

基于步行指数与人口空间格局的城市健康资源公平性 ——以广州市中心城区为例

王芳(), 朱明稳, 陈崇旺, 肖瑩, 张旭曦   

  1. 广东财经大学地理与旅游学院,广州 510320
  • 收稿日期:2020-04-17 修回日期:2020-07-31 出版日期:2021-02-25 发布日期:2021-04-25
  • 作者简介:王芳,女,山东德州人,博士,讲师,研究方向为健康地理。E-mail: wwwfff1228@163.com
  • 基金资助:
    广东省科技创新战略专项资金项目(pdjh2020a0232);广东省教育厅科研项目(2019WTSCX034);教育部人文社会科学研究青年基金项目(14YJCZH145)

Equity of urban health resources based on walkability and spatial distribution of population: A case study of the central urban area of Guangzhou City

WANG Fang(), ZHU Mingwen, CHEN Chongwang, XIAO Ying, ZHANG Xuxi   

  1. School of Geography and Tourism, Guangdong University of Finance & Economics, Guangzhou 510320, China
  • Received:2020-04-17 Revised:2020-07-31 Online:2021-02-25 Published:2021-04-25

摘要:

城市健康资源的合理布局是影响城市居民身心健康和生活质量的重要因素。本文以广州市中心城区为例,利用POI(兴趣点)、路网、Sentinel-2A遥感影像与人口统计数据等,在耦合步行指数以及土地-人口多元线性回归模型的基础上,通过秩相关系数与空间叠加分析的方法综合探究城市健康资源公平性。结果表明:①广州市中心城区健康资源的步行性较高,步行指数高值区与低值区混合分布,形成了多中心圈层递减的格局;②人口空间格局的区域差异较大,人口数量以荔湾区中部、越秀区西南部、海珠区西北部及天河区南部为中心向四周递减;③人口数量与步行指数显著相关,但低-高类与高-低类公平性空间占比达40%,城市健康资源公平性仍有较大的提升空间;④城市健康资源的区域供需关系不平衡,其中自然健康资源最为匮乏且布局不尽合理。为了促进城市健康资源步行公平性最大化,其配置应综合考量区域人口需求量、资源类型与数量、步行出行的可达性与便捷性。研究可为区域健康资源的空间布局优化与供需平衡提升提供科学参考。

关键词: 城市健康资源, 公平性, 步行指数, 人口, 空间化, 多元线性回归, 广州市

Abstract:

Urban health resources have a positive impact on residents’ physical and mental health. In this study, the central urban area of Guangzhou City was selected as the study area, and the points of interest data, road network data, Sentinel-2A remote sensing image, and demographic data were used for the analysis. Using a walkability index and multiple linear regression model of land-population, the equity of urban health resources is comprehensively explored through correlation analysis and spatial overlay. The results indicate that: (1) The urban health resources in the central urban area of Guangzhou City can be conveniently accessed by walking, but the high and low values of walkability are mixed, forming a multi-center zonal distribution pattern with decreasing walkability when moving away from the centers; (2) The regional differences in spatial distribution of population are large, and the population gradually decreases from the center of Liwan District, the southwest of Yuexiu District, the northwest of Haizhu District, and the south of Tianhe District; (3) The correlation coefficient between the walkability of urban health resources and population is small, with the proportion of the low-high value areas and high-low value areas as high as 40%. There is still a large space for improvement in the equity of urban health resources; (4) The regional supply and demand of urban health resources is unbalanced, among which natural health resources are the scarcest and the distribution is suboptimal. In order to promote the maximization of walkability equity of urban health resources, its allocation should comprehensively consider the regional population demand, resource type and quantity, and accessibility and convenience of walking. This study can provide a scientific reference for optimizing the spatial distribution of regional health resources and improving the balance between supply and demand.

Key words: urban health resources, equity, walkability, population, spatialization, multiple linear regression, Guangzhou City