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Science 16 October 1998:
Vol. 282. no. 5388, pp. 439 - 442
DOI: 10.1126/science.282.5388.439
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Reports
Changes in the Carbon Balance of Tropical Forests: Evidence from Long-Term Plots
Oliver L. Phillips,
*
Yadvinder Malhi,
*
Niro Higuchi,
William F. Laurance,
Percy
V. Núñez,
Rodolfo M. Vásquez,
Susan G. Laurance,
Leandro V. Ferreira,
Margaret Stern,
Sandra Brown,
John Grace
The role of the world's forests as a "sink" for atmospheric
carbon dioxide is the subject of active debate. Long-term monitoring of
plots in mature humid tropical forests concentrated in South America
revealed that biomass gain by tree growth exceeded losses from tree
death in 38 of 50 Neotropical sites. These forest plots have
accumulated 0.71 ton, plus or minus 0.34 ton, of carbon per hectare per
year in recent decades. The data suggest that Neotropical forests may
be a significant carbon sink, reducing the rate of increase in
atmospheric carbon dioxide.
O. L. Phillips, School of Geography, University of Leeds,
Leeds, LS2 9JT, UK. Y. Malhi and J. Grace, Institute of Ecology and
Resource Management, University of Edinburgh, Edinburgh, EH9 3JU, UK.
N. Higuchi, Departamento de Silvicultura Tropical, Instituto Nacional
de Pesquisas da Amazônia, C.P. 478, 69011-970 Manaus, Amazonas,
Brazil. W. F. Laurance, S. G. Laurance, L. V. Ferreira,
Biological Dynamics of Forest Fragments Project, Instituto Nacional de
Pesquisas da Amazônia, C.P. 478, 69011-970, Manaus, Amazonas,
Brazil. P. V. Núñez, Umanchata 136, Biodiversidad
Amazónica, Cusco, Peru. R. M. Vásquez, Missouri Botanical
Garden-Proyecto Flora del Perú, Apartado 280, Iquitos, Peru. M. Stern, Institute of Economic Botany, New York Botanical Garden, Bronx,
NY 10458, USA. S. Brown, Department of Natural Resources and
Environmental Sciences, University of Illinois, Urbana, IL 61801, USA.
*
To whom correspondence should be addressed. E-mail:
O.Phillips{at}geog.leeds.ac.uk (O.L.P); YMalhi{at}ed.ac.uk
(Y.M.)
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