Assessment and monitoring of desertification using satellite imagery of MODIS in East Asia

Meng-Lung Lin; Chieh-Ming Chu; Jyh-Yi Shih; Qiu-Bing Wang; Cheng-Wu Chen; Shin Wang; Yi-Huang Tao; Yung-Tan Lee

doi:10.1117/12.693920

12 December 2006 Assessment and monitoring of desertification using satellite imagery of MODIS in East Asia

Meng-Lung Lin, Chieh-Ming Chu, Jyh-Yi Shih, Qiu-Bing Wang, Cheng-Wu Chen, Shin Wang, Yi-Huang Tao, Yung-Tan Lee

Proceedings Volume 6411, Agriculture and Hydrology Applications of Remote Sensing; 641123 (2006) https://doi.org/10.1117/12.693920
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

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.

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Meng-Lung Lin, Chieh-Ming Chu, Jyh-Yi Shih, Qiu-Bing Wang, Cheng-Wu Chen, Shin Wang, Yi-Huang Tao, and Yung-Tan Lee "Assessment and monitoring of desertification using satellite imagery of MODIS in East Asia", Proc. SPIE 6411, Agriculture and Hydrology Applications of Remote Sensing, 641123 (12 December 2006); https://doi.org/10.1117/12.693920

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