publication . Article . 2011

temporal variability of forest fires in eastern amazonia

Ane Alencar; Gregory P. Asner; David Knapp; Daniel Zarin;
  • Published: 11 Oct 2011 Journal: Ecological Applications, volume 21, pages 2,397-2,412 (issn: 1051-0761, Copyright policy)
  • Publisher: Wiley
Widespread occurrence of fires in Amazonian forests is known to be associated with extreme droughts, but historical data on the location and extent of forest fires are fundamental to determining the degree to which climate conditions and droughts have affected fire occurrence in the region. We used remote sensing to derive a 23-year time series of annual landscape-level burn scars in a fragmented forest of the eastern Amazon. Our burn scar data set is based on a new routine developed for the Carnegie Landsat Analysis System (CLAS), called CLAS-BURN, to calculate a physically based burn scar index (BSI) with an overall accuracy of 93% (Kappa coefficient 0.84). Th...
free text keywords: Ecology, Biology, Clearance, Amazonian, Fire regime, El Niño Southern Oscillation, Amazon rainforest, Land use, Deforestation, Vegetation, Agroforestry, Physical geography
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