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Brevia
Submitted on June 18, 2007 Amazon Forests Green-Up During 2005 Drought *, ,
1 Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA. * To whom correspondence should be addressed.
Coupled climate-carbon cycle models suggest that Amazon forests are vulnerable to both long- and short-term droughts, but satellite observations showed a large-scale photosynthetic green-up in intact evergreen forests of the Amazon in response to a short, intense drought in 2005. These findings suggest that Amazon forests, though threatened by human-caused deforestation, fire, and possibly by more severe long-term droughts, may be more resilient to climate changes than ecosystem models assume.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)