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Proceedings Paper

Assessment and monitoring of desertification using satellite imagery of MODIS in East Asia
Author(s): Meng-Lung Lin; Chieh-Ming Chu; Jyh-Yi Shih; Qiu-Bing Wang; Cheng-Wu Chen; Shin Wang; Yi-Huang Tao; Yung-Tan Lee
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Paper Abstract

The desertification in Northwestern China and Mongolia shows the result of conflicts between economic development and natural conservation. Many researches have proven the desert areas are growing in these regions. The variations of bi-weekly NDVI satellite images are used as one of the parameters to evaluate the vegetation dynamics over large scale studies. In this study, remotely sensed satellite images are conducted to provide multi-temporal vegetated and non-vegetated areas in order to assess the status of desertification in East Asia. Spatial data derived from these satellite images are applied to evaluate vegetation dynamics at regional scale to find out the hot spot areas vulnerable to desertification. The results show that the desert areas are mainly distributed over southern Mongolia, central and western Inner-Mongolia, western China (the Taklimakan desert). The desert areas were expanded from 2000 to 2002, were shrunk in 2003, and were expanded from 2003 to 2005 again. The hot spot areas of desertification are mainly distributed over southeastern Mongolia and eastern Inner-Mongolia. The results will help administrators to refine the planning processes in defining the boundaries of protected areas and will facilitate to take decision of the priority areas for conservation of desertification.

Paper Details

Date Published: 12 December 2006
PDF: 9 pages
Proc. SPIE 6411, Agriculture and Hydrology Applications of Remote Sensing, 641123 (12 December 2006); doi: 10.1117/12.693920
Show Author Affiliations
Meng-Lung Lin, Aletheia Univ. (Taiwan)
Chieh-Ming Chu, National Taiwan Univ. (Taiwan)
Jyh-Yi Shih, Aletheia Univ. (Taiwan)
Qiu-Bing Wang, Shenyang Agricultural Univ. (China)
Cheng-Wu Chen, Shu-Te Univ. (Taiwan)
Shin Wang, National Taiwan Univ. (Taiwan)
Yi-Huang Tao, Tung Nan Univ. of Science and Technology (China)
Yung-Tan Lee, Aletheia Univ. (Taiwan)

Published in SPIE Proceedings Vol. 6411:
Agriculture and Hydrology Applications of Remote Sensing
Robert J. Kuligowski; Jai S. Parihar; Genya Saito, Editor(s)

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