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Proceedings Paper

Discussion of identifying urbanized area basing on the method of three-factor analysis: a case study on Chaoyang District of Beijing
Author(s): Jian Lin; Feimei Huang; Shuhai Zhang; Jianqun Chu
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Paper Abstract

The identification of urban area is a basic study on urban economic, social development and urbanization process. Population density is a widely used indicator for urbanized area analysis in most countries such as the United States and Japan, while some countries such like the UK, employ the land use types as a significant difference to distinguish urban and rural areas. China has taken urban population as a basic statistic of urbanization study, but a universal way of identification urbanized area is still in search. After a brief summarization and compare of various methods about urban area identification both in China and abroad and taking both administrative and academic aspects into consideration, this paper puts forward a new method called "three-factor analysis" which is appropriate for China's land use actuality. Taking village as the basic analysis unit, Three-factor here refers to the density of construction, the ownership of land and the performance of infrastructure. Then we design three indicators to quantify the factors above. They are proportion of construction land, proportion of state-owned construction land and the performance of infrastructure. Some kinds of construction land are defined as Basic Construction Land (BCL) and the calculation of two indicators is based on it. All the three indicators will be calculated in the village unit and the urbanized area will be determined according to the calculated result of these indicators. The standards of the indicators according to which a unit will be determined as urban or rural area are formed by three steps . First, a determinate urbanized area is units that are defined as blocks by the local administration. The rest units are called the pending area that is waiting to be identified. Second, calculate the indicator value of the determinate urbanized area and sort them in a ascending sequence. Third, to avoid influence of possible abnormal unit, we choose the value of 5% position in the sequence from the beginning as a standard. The paper then practises the method in Chaoyang district in the east of Beijing which is a quickly developing area for decades, using GIS tools to calculate and perform the urbanized area that is identified in this "three-factor analysis" way. In the end a brief description of the ongoing land use condition and urban construction land proportion in this urbanized area.

Paper Details

Date Published: 15 August 2007
PDF: 13 pages
Proc. SPIE 6752, Geoinformatics 2007: Remotely Sensed Data and Information, 67522R (15 August 2007); doi: 10.1117/12.760798
Show Author Affiliations
Jian Lin, Peking Univ. (China)
Feimei Huang, Peking Univ. (China)
Shuhai Zhang, Peking Univ. (China)
Jianqun Chu, Peking Univ. (China)

Published in SPIE Proceedings Vol. 6752:
Geoinformatics 2007: Remotely Sensed Data and Information
Weimin Ju; Shuhe Zhao, Editor(s)

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