Received date: 2004-11-15
Revised date: 2005-02-21
Online published: 2005-05-25
Supported by
National Natural Science Foundation of China, No.90202002
Fractal dimensions, compact ratios, shape indices and types of urban land expansion of 31 Chinese cities in 1990 and 2000 were computed by using dynamic land-use data from the National Resources and Environmental Database established by the IGSNRR, CAS. The results show, during the period from 1990 to 2000, that the type of urban land expansion belongs mostly to the 'extension' types and the cities with the 'filling' land expansion are almost located in the flat regions. Generally, fractal dimensions of 31 Chinese cities were inclined to reduce and fractal dimensions of the southern cities are more than those of the northern cities, compact ratios of most of the cities increased, urban shape indices of most of the cities decreased, during the period from 1990 to 2000. In all the 31 cities, the changes in the planar configurations of Guangzhou, Nanchang, Jinan, Chengdu, Beijing and Shanghai are the greatest, while the changes of Lanzhou, Taiyuan and Tangshan's configurations are the least. Such a simple rule is revealed that the fractal dimensions would reduce, compact ratio would increase and shape index would decrease if the type of urban land expansion belongs to the 'filling' type and vice versa.
WANG Xinsheng, LIU Jiyuan, ZHUANG Dafang, WANG Liming . Spatial-temporal Changes of Urban Spatial Morphology in China[J]. Acta Geographica Sinica, 2005 , 60(3) : 392 -400 . DOI: 10.11821/xb200503005
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