Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/3644
Título: Size and frequency of natural forest disturbances and the Amazon forest carbon balance
Autor(es): ESPÍRITO-SANTO, FERNANDO D.B.
FROLKING, STEVE
PALACE, MICHAEL
SHIMABUKURO, YOSIO E.
DUARTE, VALDETE
MENDOZA, ABEL MONTEAGUDO
LÓPEZ-GONZÁLEZ, GABRIELA
BAKER, TIM R.
FELDPAUSCH, TED R.
BRIENEN, ROEL J.W.
ASNER, GREGORY P.
GLOOR, MANUEL
BOYD, DOREEN S.
PHILLIPS, OLIVER L.
KELLER, MICHAEL
MALHI, YADVINDER
SAATCHI, SASSAN
Bruce Walker Nelson
JUNIOR, RAIMUNDO C. OLIVEIRA
PEREIRA, CLEUTON
LLOYD, JON
ISSN: 2041-1723
Revista: Nature Communications
Volume: 1
Resumo: Forest inventory studies in the Amazon indicate a large terrestrial carbon sink. However, field plots may fail to represent forest mortality processes at landscape-scales of tropical forests. Here we characterize the frequency distribution of disturbance events in natural forests from 0.01 ha to 2,651 ha size throughout Amazonia using a novel combination of forest inventory, airborne lidar and satellite remote sensing data. We find that small-scale mortality events are responsible for aboveground biomass losses of similar to 1.7 Pg Cy-1 over the entire Amazon region. We also find that intermediate-scale disturbances account for losses of similar to 0.2 Pg Cy-1, and that the largest-scale disturbances as a result of blow-downs only account for losses of similar to 0.004 Pg Cy-1. Simulation of growth and mortality indicates that even when all carbon losses from intermediate and large-scale disturbances are considered, these are outweighed by the net biomass accumulation by tree growth, supporting the inference of an Amazon carbon sink.
URI: http://repositorio.inpa.gov.br/handle/123/3644
ISSN: 2041-1723
DOI: https://dx.doi.org/10.1038/ncomms4434
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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