Dinmica do carbono Amaznia: Mudanas climticas, distrbios antrpicos e produtividade florestal

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REDD ALERT ON AMAZONIAN FIRES Fire trends and
mitigation under a reduced deforestation future
University of Oxford 22th July 2009
Luiz Aragão NERC Research Fellow Environmental
Change Institute Centre for the Environment
University of Oxford leocaragao_at_gmail.com Colla
borators Federal University of Acre, Centro Vida
Institute, Brazilian Institute for Space
Research-INPE, NASA-JPL
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Fires are well correlated at the biome scale with
deforestation rate in Amazonia
REDD is a major mechanism for mitigation of
climate change Does avoiding
deforestation reduces fire incidence in Amazonia?
2005 drought
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Fires are incresing in several Amazonian regions
Fires incidence is increasing (1998-2006)
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.....But deforestation rates are decreasing
Deforestation is dropping (2000-2007)
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We have to solve a problem Fires are increasing
even in areas with negative deforestation trend!
Increased forest edges, disturbed and secondary
forests which are more susceptible to
fire Reducing C emissions by reducing
deforestation rates ? Increase fire emissions ?
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Distribution of fire pixels
Increased forest edges, disturbed and secondary
forests which are more susceptible to
fire Reducing C emissions by reducing
deforestation rates ? Increase fire emissions ?
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Uncertainties in C emissions due to
deforestation and forest degradation
Fires may offset carbon savings from avoiding
deforestation
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Is there a solution?
1998-2006.
Aragão, in preparation
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Is there a solution?
Stop deforestation
1998-2006.
Aragão, in preparation
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Is there a solution?
Fire-free land management
1998-2006.
Aragão, in preparation
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Thank you
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Fires are increasing even with a drop in
deforestation rates