摘要
深圳土地开发强度高,导致生产、生活与生态功能在有限空间内交织,功能叠置与空间分异并存。本文以12514个街区单元为对象,利用高德兴趣点(POI)、开放街道地图(OSM)路网和1 m分辨率不透水面数据划分空间类型,并结合自然生态与社会经济变量,采用空间自相关、基尼系数、区位熵、普通最小二乘回归和地理加权回归分析其分异特征与形成条件。结果表明,生产空间与混合三生空间的集聚性最强,生态相关空间相对分散;混合三生空间在纳入统计的9个行政区均有分布,生活空间在福田、罗湖和南山等成熟城区总体占优,在龙岗、龙华等人口密集地区也表现出一定集聚。生产和生活空间主要与经济发展、人口、道路和人类活动相联系,混合三生空间还受到植被覆盖等生态条件影响,生态空间则与植被和地形条件联系更紧密。地理加权回归模型(GWR)在多数空间类型上的拟合度有所提高,表明全局平均关系难以完全解释城市内部差异。深圳空间治理可依据局部集聚类型和总体关联特征识别功能优化重点,并通过动态监测与滚动调整提高治理响应的针对性。
关键词: 三生空间;空间分异;空间自相关;地理加权回归;深圳市
Abstract
Shenzhen is characterized by intensive land development, with production, living, and ecological functions concentrated within a limited urban space, where functional overlap and spatial differentiation coexist. This study examines 12,514 urban blocks. Utilize amap Points of Interest (POI), OpenStreetMap (OSM) road network, and 1 m impervious-surface data are used to classify spatial functions, while natural and socioeconomic variables are incorporated to examine their formation conditions. Spatial autocorrelation, the Gini coefficient, location quotient, ordinary least squares regression, and geographically weighted regression are applied. Production space and mixed production-living-ecological space show the strongest agglomeration, whereas ecological-function spaces are relatively dispersed. Mixed-function spaces occur across the nine districts included in the administrative comparison. Living space is relatively concentrated in mature districts such as Futian, Luohu, and Nanshan, with additional clusters in densely populated Longgang and Longhua. Production and living spaces are closely associated with economic development, population, road conditions, and human activity. Mixed-function space is also related to vegetation cover and other ecological conditions, while ecological space is more strongly associated with vegetation and topography. The Geographically Weighted Regression (GWR) model improves model fit for most spatial types, indicating that citywide average relationships do not fully explain intra-urban variation. Spatial governance in Shenzhen may therefore use local clustering patterns and overall statistical associations to identify functional optimization priorities, supported by dynamic monitoring and iterative adjustment.
Key words: Production-living-ecological space; Spatial differentiation; Spatial autocorrelation; Geographi-cally weighted regression; Shenzhen
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