NDLI: Size and frequency of natural forest disturbances and the Amazon forest carbon balance

Content Provider	PubMed Central
Author	Espírito-santo, Fernando D. B. Gloor, Manuel Keller, Michael Malhi, Yadvinder Saatchi, Sassan Nelson, Bruce Junior, Raimundo C. Oliveira Pereira, Cleuton Lloyd, Jon Steve, Frolking Palace, Michael Shimabukuro, Yosio E. Duarte, Valdete Mendoza, Abel Monteagudo Gabriela, López-gonzález Baker, Tim R. Feldpausch, Ted R. Brienen, Roel J. W. Asner, Gregory P. Boyd, Doreen S. Phillips, Oliver L.
Copyright Year	2014
Abstract	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 ~1.7 Pg C y−1 over the entire Amazon region. We also find that intermediate-scale disturbances account for losses of ~0.2 Pg C y−1, and that the largest-scale disturbances as a result of blow-downs only account for losses of ~0.004 Pg C y−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.
Related Links	http://dx.doi.org/10.1038/ncomms4434
Starting Page	3434
File Format	PDF
ISSN	20411723
e-ISSN	20411723
Journal	Nature Communications
Volume Number	5
Language	English
Publisher	Nature Pub. Group
Publisher Date	2014-03-01
Access Restriction	Open
Rights Holder	Nature Pub. Group
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Physics and Astronomy(all) Chemistry(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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