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arXiv 1209.5544physics.soc-ph
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城市空间递归细分与齐普夫定律

Recursive Subdivision of Urban Space and Zipf's law

Yanguang Chen, Jiejing Wang

摘要:

齐普夫定律可以用来描述一个区域内城市的位序-规模分布。它很少被用于研究城市内部结构。在本文中,我们证明了一个城市的空间填充过程遵循齐普夫定律,并可以与排名大小规则的特点。提出了一个城市空间分解模型来描述城市增长的空间规律。通过空间的递归细分,城市区域可以在几何上划分为二区、四区、八区等,形成一个具有梯级结构的层次结构。如果我们按大小对这些部分进行排序,这些部分将符合Zipf分布。利用GIS技术和遥感数据,将城市空间递归细分模型应用于中国三个城市。结果表明,城市内部的等级结构符合齐普夫定律,等级规模标度指数非常接近于1。本研究的意义在于三个方面。首先,通过对城市空间的严格细分,揭示了城市形态空间秩序的有效途径。其次,揭示了城市空间填充过程与位序-规模规则之间的关系。第三,它提出了一种新的方式来理解分形,齐普夫定律,和城市演变的空间组织。

英文摘要:

Zipf's law can be used to describe the rank-size distribution of cities in a region. It was seldom employed to research urban internal structure. In this paper, we demonstrate that the space-filling process within a city follows Zipf's law and can be characterized with the rank-size rule. A model of spatial disaggregation of urban space is presented to depict the spatial regularity of urban growth. By recursive subdivision of space, an urban region can be geometrically divided into two parts, four parts, eight parts, and so on, and form a hierarchy with cascade structure. If we rank these parts by size, the portions will conform to the Zipf distribution. By means of GIS technique and remote sensing data, the model of recursive subdivision of urban space is applied to three cities of China. The results show that the intra-urban hierarchy complies with Zipf's law, and the values of the rank-size scaling exponent are very close to 1. The significance of this study lies in three aspects. First, it shows that the strict subdivision of space is an efficient approach to revealing spatial order of urban form. Second, it discloses the relationships between urban space-filling process and the rank-size rule. Third, it suggests a new way of understanding fractals, Zipf's law, and spatial organization of urban evolution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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