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Proceedings Paper

Land use/cover changes between 1990 and 2000 based on remote sensing and GIS in Pearl River Delta, China
Author(s): Zhiliang Chen; Xulong Liu; Xiaochun Peng; Zhencheng Xu; Zhifeng Wu
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Paper Abstract

In recent decades, land use/cover change and its consequences have been an important aspect of geography, ecology, environment science and global change. The Pearl River Delta lying on the mouth of the Pearl River, South China, is an important ecostone between sea and river, terrestrial and hydrology. Since 1990, Land use/cover has changed greatly due to the rapid urbanization in the Pearl River Delta. Farmland area decreases 1414.75km2 from 13504.1 km2 to 12089.35 km2, the proportion to total land area decreases from 32.82% to 29.35%. Forestland area decreases 904.26 km2 between 1990 and 2000. Built land area increases rapidly, in 1990, the area of built land is 1849.60 km2, while in 2000, the built land area reaches 4427.03 km2, and the increased area is 2577.43 km2. The area of water land, idle land and wetland decrease 55.72 km2, 141.47km2 and 14.12 km2 respectively. The transition intension of LUCC is unprecedented, about 25.26% area of total Farmland has involved in this conversion, among this conversion, the change area of farmland converts to built land, water land, forestland, wetland, idle land are 1876.40 km2, 1175.61 km2, 315.83 km2, 31.13 km2 and 12.01 km2, respectively, the immigrated area is 3410.98 km2, and emigrated area is 1994.82 km2, most of those land use area loss convert into built land. The immigrated area of other land use to built land in turn is: Farmland >water land >forestland > wetland >idle land, and emigrated area of built land to other land use in turn is as: Farmland>forestland>water land> wetland>idle land. Idle land change intension reaches 80%.The dynamic index indicates that these cities (eg. Zhongshan) are associated with the most land use/cover change process. The cities of Jiangmen, Zhaoqing and Huizhou have lower values of the index. These changes coincide with the land use conversion process, which can reflect the urban and economic development.

Paper Details

Date Published: 5 November 2008
PDF: 10 pages
Proc. SPIE 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics, 71440N (5 November 2008); doi: 10.1117/12.812715
Show Author Affiliations
Zhiliang Chen, South China Institute of Environmental Science (China)
Xulong Liu, Guangzhou Institute of Geography (China)
Xiaochun Peng, South China Institute of Environmental Science (China)
Zhencheng Xu, South China Institute of Environmental Science (China)
Zhifeng Wu, Guangdong Institute of Ecological Environment and Soil Science (China)

Published in SPIE Proceedings Vol. 7144:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Xinhao Wang, Editor(s)

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