NDLI: Evaluation of three-dimensional urban expansion: A case study of Yangzhou City, Jiangsu Province, China

Content Provider	Springer Nature Link
Author	Qin, Jing Fang, Chuanglin Wang, Yang Li, Guangdong Wang, Shaojian
Copyright Year	2015
Abstract	With rapid urban development in China in the last two decades, the three-dimensional (3D) characteristic has been the main feature of urban morphology. However, the vast majority of researches of urban growth have focused on the planar area (two-dimensional (2D)) expansion. Few studies have been conducted from a 3D perspective. In this paper, the 3D urban expansion of the Yangzhou City, Jiangsu Province, China from 2003 to 2012 was evaluated based on Geographical Information System (GIS) tools and high-resolution remote sensing images. Four indices, namely weighted average height of buildings, volume of buildings, 3D expansion intensity and 3D fractal dimension are used to quantify the 3D urban expansion. The weighted average height of buildings and the volume of buildings are used to illustrate the temporal change of the 3D urban morphology, while the other two indices are used to calculate the expansion intensity and the fractal dimension of the 3D urban morphology. The results show that the spatial distribution of the high-rise buildings in Yangzhou has significantly spread and the utilization of the 3D space of Yangzhou has become more efficient and intensive. The methods proposed in this paper laid a foundation for a wide range of study of 3D urban morphology changes.
Starting Page	224
Ending Page	236
Page Count	13
File Format	PDF
ISSN	10020063
Journal	Chinese Geographical Science
Volume Number	25
Issue Number	2
e-ISSN	1993064X
Language	English
Publisher	Science Press
Publisher Date	2014-11-24
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	three-dimensional urban morphology high-resolution remote sensing image three-dimensional expansion three-dimensional fractal Yangzhou City China Geography (general)
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Geography, Planning and Development

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