城市低效居住用地识别及空间格局分析——以沈阳市大东区为例

Identification and Spatial Pattern Analysis of Inefficient Residential Land in Cities—Taking Dadong District of Shenyang City as an Example

本文在系统论视角下,以沈阳市大东区为例构建识别城市低效居住用地的指标体系,利用ARCGIS软件中平均最近邻指数、核密度分析、标准差椭圆方法对其分布的空间格局进行分析,结果表明:1) 研究区低效居住用地共92块,面积为324.55 hm2,占研究区居住用地总面积的17.66%;2) 从整体来看,研究区低效居住用地呈现集聚型分布,形成了整体集聚、多中心发展、块状分散的空间格局;3) 从不同程度低效居住用地类型看,主要表现出“单核分布”、“双核分布”及“多核分布”的空间特征。

This article, from the perspective of systems theory, takes the Dadong District of Shenyang City as an example to construct an indicator system for identifying urban inefficient residential land. The spatial pattern of its distribution is analyzed using the average nearest neighbor index, kernel density analysis, and standard deviation ellipse method in ARCGIS software. The results show that: 1) There are a total of 92 inefficient residential land blocks in the study area, with an area of 324.45 hm2, accounting for 17.66% of the total residential land area in the research area. 2) Overall, the inefficient residential land in the research area presents a clustered distribution, forming a spatial pattern of overall agglomeration, multi-center development, and block dispersion;3) From the perspective of different levels of inefficient residential land types, it mainly exhibits spatial characteristics of “single core distribution”, “dual-core distribution”, and “multi-core distribution”.