Skip to main content
padlock icon - secure page this page is secure

Remotely-sensed indicators of burning efficiency of savannah and forest fires

Buy Article:

$61.00 + tax (Refund Policy)

The objective of this study was to test remotely sensed indicators of burning efficiency for savanna and forest fires in Central Africa. The timing of fire with respect to vegetation senescence, the rate of post-fire recovery of vegetation and the spatial pattern of burning were potential indicators of burning efficiency. Statistical analyses were conducted to assess whether the values of a vegetation index (NDVI) and surface temperature (Ts) were different at different stages of the burning season for burnt and unburnt areas, fragmented and continuous burnt patches, and early and late fires. Results show that fires affect areas with the lowest NDVI and highest Ts values. Continuous and fragmented burnt patches are associated with vegetation covers in different states prior to a fire. The rate of recovery of vegetation after a fire depends on ecotypes (periforests recover more slowly than savannas), burning intensity and completeness (areas affected by fragmented burnt patches recover more quickly than areas affected by continuous burnt patches) and timing of the fire (areas affected by early fires recover more quickly than areas affected by late fires). The results suggest that combustion efficiency is lower for fragmented burnt areas compared to continuous burnt areas. It would thus be possible to decrease uncertainties in estimates of trace gas emissions from fires by replacing fixed burning efficiency values in emission models by values that would vary in space and time, based on measures of the spatial pattern of burnt areas as detected by remote sensing.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Affiliations: Department of Geography, Universit√© catholique de Louvain, Place Louis Pasteur, 3, B-1348 Louvain-la-Neuve, Belgium;, Email: [email protected]

Publication date: August 1, 2003

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more