Ranching in the Amazon Basin : Large-scale changes observed by AVHRR
The Amazon basin, the largest remaining area of tropical forest, is currently under deforestation for cropping, ranching and logging, giving rise to the bitter debate between conservationists and developers. Central to this debate are data on the magnitude and spatial distribution of these phenomena and the rates of change affecting those biomes in a given region. These are at the core of resilience mechanisms leading to vegetation regrowth, understanding of which could lead to better definitions of possible land use patterns. The Advanced Very High Resolution Radiometer (AVHRR) data provide near-daily coverage by satellite, synoptic views of large areas, and calculation of the normalised difference vegetation index. Thermal data provide further discrimination between ground features such as the evergreen forest canopy, the dry grass of the savannah or commercial ranches.
Bibliographic Reference: Article: International Journal of Remote Sensing, Vol. 11 (1990) No. 2, pp. 187-189
Record Number: 199011312 / Last updated on: 1994-12-01
Original language: en
Available languages: en