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Assessment and Monitoring of Land Use / Land Cover Change in Continental Southeast Asia  

Assessment and Monitoring of Land Use / Land Cover Change in Continental Southeast Asia

land use/ land cover change particularly that of tropical deforestation and forest degradation have been occuring at an unprecedented rate and scale in Southeast Asia. The rapid rate of economic development, demographics and poverty are believed to be the underlying forces responsible for the change. Accurate and up-to-date information to support the above statement is however, not available. The available data, if any, are outdated and are not comparable for various technical reasons. Time series analysis of land cover changes and identification of driving forces responsible for such changes are needed for the sustainable management of natural resources and also for projecting future land cover land cover trajectories. We analyzed the multi-temporal and multi-seasonal NOAA AVHRR satellite data of 1985/86, and 1992/93 and SPOT VEGETATION data of 1999/2000 to (1) prepare historical land cover maps and (2) to identify areas undergoing major land cover transformations (called"hot spot"). The identified "hot spot" areas were investigated using high-resolution satellite data such as Landsat and SPOT supplemented by intensive field survey. Shifting cultivation. Intensification of agricultural activities and change of cropping patterns, and conversion of forest to agriculture land were found to be the principal reasons for land use land cover change in Oudomxay province of Lao P.D.R, Mekong Delta of Vietnam and Loei province of Thailand respectively. Moreover, land use/land cover dynamics of the region and a typical land use/land cover change patterns of the "hot spot" areas were also examined. We also developed a field-based methodology for land use/land cover change analysis at the national level with the help of national remote sensing institutions.


Uploaded on: Jan 2008
File size: 156 KB - Language: English
Keyword(s): Natural Resources Management
Category: Environment

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