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Proceedings Paper

Temporal-spatial patterns of wetlands changes in China and driving force analysis
Author(s): Shuwen Zhang; Yangzhen Zhang; Jing Chen; Yanhong Zhang; Zhiqiang Gao
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Paper Abstract

Wetlands are special ecosystem lying between the terrestrial and open-water areas. Similar to forest, grass, and ocean ecosystems, wetlands take parts in protecting environments and exploring resources. In China, wetlands are undergoing significant degradation that is caused by both natural processes and human activities. In order to know the details of wetlands change so as to take suitable actions to protect wetlands, Landsat TM/ETM images are used as main data sets. Accessorial data such as topography map and China mire map are also used. In this paper, wetlands are defined as swamplands, potholes, wet meadow, riverine, lacurtrine. Three periods (1990a, 1995a, 2000a) data of wetlands in china are extracted from TM through the interactive interpretation. Applying spatial analysis function of GIS technology and statistics methods, the spatial distribution pattern and temporal changes are studied. The research results show that, during the 10 years from 1990 to 2000, wetlands area decreased largely, and spatial difference is notable. Finally, the driving forces resulting in mires changes are analyzed.

Paper Details

Date Published: 9 November 2004
PDF: 10 pages
Proc. SPIE 5544, Remote Sensing and Modeling of Ecosystems for Sustainability, (9 November 2004); doi: 10.1117/12.559264
Show Author Affiliations
Shuwen Zhang, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Yangzhen Zhang, Northeast Institute of Geography and Agricultural Ecology, CAS (China)
Jing Chen, Beijing Univ. of Unite (China)
Yanhong Zhang, Jilin Univ. (China)
Zhiqiang Gao, Institute of Geographical Sciences and Natural Resources Research, CAS (China)

Published in SPIE Proceedings Vol. 5544:
Remote Sensing and Modeling of Ecosystems for Sustainability
Wei Gao; David R. Shaw, Editor(s)

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