西安城市医疗资源的空间集聚特征与人口适配性OA北大核心CSTPCD
Spatial agglomeration characteristics and population adaptability of urban medical resources in Xi'an
医疗资源的合理高效配置是现代城市公共空间治理的重要内容.基于适配性理论,构建城市医疗资源与居住人口的空间适配性分析框架,以西安主城区为案例,采用医疗资源POI数据,通过核密度分析、Ripley's K函数、区位关联度和高斯两步移动搜索法等探讨西安城市医疗资源的空间集聚模式、尺度阈值及与人口规模的空间适配关系.结果表明:西安城市医疗资源整体呈现典型的"核心-外围"结构和城市主发展轴依赖的特征,具有CBD性质的高水平开发区和卫星城的集聚效应显著.各类医疗资源集聚强度峰值所对应的特征尺度具有一致性,均为将研究区等面积抽象成圆形时对应圆直径的约1/4.城市医疗资源与居住小区的双向区位关联模式呈"非对称"结构,大型公共医疗资源在人口配置中的先导性效应显著.西安城市医疗资源与人口规模的适配关系整体上呈现"中心强,外围弱"的圈层衰减结构,不同类型医疗资源在不同城市圈层表现出差异化的特征,体现了在城市宏观规划和市场资源双重配置下,医疗资源分级诊疗体系间的补偿替代效应及空间表现.
The rational and effective allocation of medical resources constitutes a crucial aspect of contemporary urban public space governance.Employing the framework of adaptability theory,an analysis framework to examine the spatial adaptability between urban medical resources and residential populations is constructed.Using Xi'an main urban area as a case study and leveraging point of interest(POI)data on medical resources,the research employs kernel density analysis,Ripley's K function,location correlation,and Gaussian two-step floating catchment area method to explore the spatial agglomeration modes,scale thresholds,and spatial adaptability relationships with population scale of urban medical resources in Xi'an.Results reveal that urban medical resources in Xi'an exhibit a typical"core-periphery"structure and demonstrate a dependence on the main axis of urban development,with significant agglomeration effects observed in high-level development zones and satellite cities with CBD characteristics.Moreover,the characteristic scales corresponding to peak intensity of various medical resources are consistent,typically representing about 1/4 of the corresponding circle diameter when abstracted into circular areas of equal size.Additionally,the bidirectional location correlation model between urban medical resources and residential communities demonstrates an"asymmetric"structure,with significant leading effects of large-scale public medical resources in population allocation.Overall,the adaptability relationship between urban medical resources and population scale in Xi'an follows a circle decay structure of"strong center,weak periphery",with different types of medical resources exhibiting differentiated characteristics in various urban circles.This reflects the compensation substitution effect and its spatial manifestation among hierarchical medical resource diagnosis and treatment systems under the dual allocation of urban macro planning and market resources.
闫嘉慧;马蓓蓓;党星;袁水妹;薛东前;宋永永
陕西师范大学地理科学与旅游学院,陕西西安 710119
地理科学
城市医疗资源空间集聚人口分布适配性西安市
urban medical resourcesspatial agglomerationpopulation distributionadaptabilityXi'an city
《陕西师范大学学报(自然科学版)》 2024 (004)
78-92 / 15
国家自然科学基金(42071214,41971204)
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