摘要
利用成都市人口普查与空间大数据,基于“演化模式—互动机制—规划响应”的关联逻辑,采用GIS和k-means聚类法刻画成都市2010—2020年老年人口时空演变特征与模式,并从宜达、宜养、宜居3个维度探究建成环境与老年人口分布的互动关系。研究结果表明:①2010—2020年,成都市人口结构正由轻度老龄化逐步迈向重度老龄化,老龄化系数空间格局保持“U”形分布趋势,老年人口密度分布形成了“中间高,外围低”的圈层式空间结构。②老年人口的时空演化具有存留老化型、集聚稳定型、自然老化型、集聚老化型4类模式,分别呈现城乡末端集聚、中心团块簇群、全域散点分布、中圈嵌套环绕的空间分布形态。③公交站点、医疗设施、市场、公园广场密度等建成环境指标与老年人口分布密切相关。
Based on the population census and spatial big data of Chengdu and the framework of"evolution mode,interaction mechanism,and planning response",the space-temporal evolution characteristics and patterns of the elderly population in Chengdu are analyzed through GIS and K-means clustering.From the three dimensions of accessibility,viability,and sustainability,the interactive relationship between the built environment and the distribution of the elderly population is explored.The research results indicate that:(1)from 2010 to 2020,Chengdu has been gradually transitioning from a mild aging to a severe aging population structure.The spatial pattern of the aging coefficient exhibits a U-shaped distribution trend,and the distribution of the elderly population density demonstrates a circular spatial structure of"high in the center and low on the periphery".(2)The space-temporal evolution of the elderly population can be categorized into four types of patterns:residual aging,agglomeration aging,natural aging,and agglomeration stability.They exhibit spatial distribution patterns characterized by urban and rural end agglomeration,central clusters,overall scattering,and intermediate nested circles.(3)The built environment indicators,including bus stops,medical facilities,and the density of markets and parks,are closely related to the distribution of the elderly population.
作者
喻冰洁
崔叙
杨田
张秋仪
魏东
YU Bingjie;CUI Xu;YANG Tian;ZHANG Qiuyi;WEI Dong
出处
《规划师》
CSSCI
北大核心
2024年第3期43-52,共10页
Planners
基金
西南交通大学博士创新基金项目(2017310253)
国家自然科学基金区域创新发展联合基金重点项目(U20A20330)
唐仲英基金会包容性城市规划建设联合研究平台项目(2022009)
国家自然科学基金青年基金项目(52208034)。
关键词
人口老龄化
时空演变
建成环境
类型识别
互动机制
成都市
population aging
space-temporal evolution
built environment
type identification
interactive mechanism
Chengdu
