山东半岛城市群空间紧凑度测度与空间分异特征

摘要

[目的/意义]城市空间紧凑度是体现城市空间形态和功能布局的一个重要指标, 该指标用以测度城市建成区土地利用紧凑和饱满程度.[方法/过程]从人口、土地利用和交通3个维度共计12个指标, 构建城市空间紧凑度的综合测度指标体系.运用熵值法及系统聚类分析法, 对山东半岛城市群8个中心城市空间紧凑度进行综合全面分析.[结果/结论]研究认为:山东半岛城市群城市的综合空间紧凑度总体不高, 且空间差异大.根据综合空间紧凑度的差异, 采用系统聚类分析法, 将山东半岛城市群城市综合空间紧凑度划分为紧凑、较紧凑、不紧凑三个级别.城市综合空间紧凑度以青岛和济南为中心向周围逐渐降低.城市综合空间紧凑度与城市人口规模呈现出正向相关特征, 即城市规模较大的城市其相应的综合空间紧凑度也较高.%[Objective/Meaning]Urban spatial compactness, an important indicator of urban spatial morphology andfunctional layout, is used to measure the compact and plumpness of land use in urban area.[Methods/Procedures]Thecomprehensive index system for the spatial compactness of cities, including 12 indicators involving into population, land use and transportation, were constructed in this article, and 8 center cities in urban agglomeration of ShandongPeninsula were analyzed by entropy method and system clustering.[Results/Conclusions]The results showed that:The urban spatial compactness of Shandong Peninsula was not high on the whole, and was with obvious spatial differ-entiation.The urban space compactness of Shandong Peninsula included high, medium and low levels according to theclustering analysis.The comprehensive spatial compactness of cities was gradually decreasing from the center, Jinanand Qingdao, to the surround.There was positive correlation between urban space compactness and population.Itmeans the larger the population of city is, the higher the spatial compactness is.