@Article{FeldpauschPBGLLMMAAAAAAABBBBCCCDFGCLLLLMMBNOSCPPQRRRRSSSSSSTTHVVV:2016:AmFoRe,
author = "Feldpausch, T. R. and Phillips, O. L. and Brienen, R. J. W. and
Gloor, E. and Lloyd, J. and Lopez-Gonzalez, G. and
Monteagudo-Mendoza, A. and Malhi, Y. and Alarcon, A. and Alvarez
Davila, E. and Alvarez-Loayza, P. and Andrade, A. and Arag{\~a}o,
Luiz Eduardo Oliveira e Cruz de and Arroyo, L. and Aymard, G. A.
and Baker, T. R. and Baraloto, C. and Barroso, J. and Bonal, D.
and Castro, W. and Chama, V. and Chave, J. and Domingues, T. F.
and Fauset, S. and Groot, N. and Coronado, E. Honorio and
Laurance, S. and Laurance, W. F. and Lewis, S. L. and Licona, J.
C. and Marimon, B. S. and Marimon Junior, B. H. and Bautista, C.
M. and Neill, D. A. and Oliveira, E. A. and Santos, C. Oliveira
dos and Camacho, N. C. Pallqui and Pardo-Molina, G. and Prieto, A.
and Quesada, C. A. and Ramirez, F. and Ramirez-Angulo, H. and
Rejou-Mechain, M. and Rudas, A. and Saiz, G. and Salomao, R. P.
and Silva-Espejo, J. E. and Silveira, M. and ter Steege, H. and
Stropp, J. and Terborgh, J. and Thomas-Caesar, R. and van der
Heijden, G. M. F. and Vazquez Martinez, R. and Vilanova, E. and
Vos, V. A.",
affiliation = "{University of Exeter} and {University of Leeds} and {University
of Leeds} and {University of Leeds} and {Imperial College London}
and {University of Leeds} and {Universidad Nacional San Antonio
Abad del Cusco} and {University of Oxford} and {Instituto
Boliviano de Investigaci{\'o}n Forestal} and {Fundaci{\'o}n
Con-Vida} and {Duke University} and {Instituto Nacional de
Pesquisas da Amazonia (INPA)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Museo de Historia Natural Noel Kempff
Mercado} and UNELLEZ-Guanare and {University of Leeds} and
{Florida International University} and {Universidade Federal do
Acre (UFAC)} and INRA, UMR and {Universidade Federal do Acre
(UFAC)} and {Universidad Nacional San Antonio Abad del Cusco} and
{Universit{\'e} Paul Sabatier CNRS} and {Universidade de S{\~a}o
Paulo (USP)} and {University of Leeds} and {University of Leeds}
and {University of Leeds} and {James Cook University} and {James
Cook University} and {University of Leeds} and {Instituto
Boliviano de Investigaci{\'o}n Forestal} and {Universidade do
Estado de Mato Grosso (UEMT)} and {Universidade do Estado de Mato
Grosso (UEMT)} and FOMABO, Manejo Forestal en las Tierras
Tropicales de Bolivia, Sacta and {Universidad Estatal
Amaz{\'o}nica} and {Universidade do Estado de Mato Grosso (UEMT)}
and {Universidade do Estado de Mato Grosso (UEMT)} and
{Universidad Nacional San Antonio Abad del Cusco} and {Universidad
Autonoma del Beni} and {Universidad Nacional de Colombia} and
{Instituto Nacional de Pesquisas da Amazonia (INPA)} and
{Universidad Nacional de la Amazon{\'{\i}}a Peruana} and
{Universidad de Los Andes} and {Universit{\'e} Paul Sabatier} and
{Universidad Nacional de Colombia} and {Karlsruhe Institute of
Technology} and {Museu Paraense Em{\'{\i}}lio Goeldi} and
{Universidad Nacional San Antonio Abad del Cusco} and
{Universidade Federal do Acre (UFAC)} and {Naturalis Biodiversity
Center} and {Universidade Federal do Alagoas (UFAL)} and {Duke
University} and {Iwokrama International Centre for Rainforest
Conservation and Development} and {University of Nottingham} and
{Jard{\'{\i}}n Bot{\'a}nico de Missouri} and {Universidad de
Los Andes} and {Universidad Aut{\'o}noma del Beni}",
title = "Amazon forest response to repeated droughts",
journal = "Global Biogeochemical Cycles",
year = "2016",
volume = "30",
number = "7",
pages = "964--982",
month = "July",
keywords = "carbon, forest productivity, water deficit, precipitation,
vegetation dynamics, tree mortality.",
abstract = "The Amazon Basin has experienced more variable climate over the
last decade, with a severe and widespread drought in 2005 causing
large basin-wide losses of biomass. A drought of similar
climatological magnitude occurred again in 2010; however, there
has been no basin-wide ground-based evaluation of effects on
vegetation. We examine to what extent the 2010 drought affected
forest dynamics using ground-based observations of mortality and
growth from an extensive forest plot network. We find that during
the 2010 drought interval, forests did not gain biomass (net
change: -0.43Mgha(-1), confidence interval (CI): -1.11, 0.19,
n=97), regardless of whether forests experienced precipitation
deficit anomalies. This contrasted with a long-term biomass sink
during the baseline pre-2010 drought period (1998 to pre-2010) of
1.33Mgha(-1)yr(-1) (CI: 0.90, 1.74, p<0.01). The resulting net
impact of the 2010 drought (i.e., reversal of the baseline net
sink) was -1.95Mgha(-1)yr(-1) (CI:-2.77, -1.18; p<0.001). This net
biomass impact was driven by an increase in biomass mortality
(1.45Mgha(-1)yr(-1) CI: 0.66, 2.25, p<0.001) and a decline in
biomass productivity (-0.50Mgha(-1)yr(-1), CI:-0.78, -0.31;
p<0.001). Surprisingly, the magnitude of the losses through tree
mortality was unrelated to estimated local precipitation anomalies
and was independent of estimated local pre-2010 drought history.
Thus, there was no evidence that pre-2010 droughts compounded the
effects of the 2010 drought. We detected a systematic basin-wide
impact of the 2010 drought on tree growth rates across Amazonia,
which was related to the strength of the moisture deficit. This
impact differed from the drought event in 2005 which did not
affect productivity. Based on these ground data, live biomass in
trees and corresponding estimates of live biomass in lianas and
roots, we estimate that intact forests in Amazonia were carbon
neutral in 2010 (-0.07PgCyr(-1) CI:-0.42, 0.23), consistent with
results from an independent analysis of airborne estimates of
land-atmospheric fluxes during 2010. Relative to the long-term
mean, the 2010 drought resulted in a reduction in biomass carbon
uptake of 1.1PgC, compared to 1.6PgC for the 2005 event.",
doi = "10.1002/2015GB005133",
url = "http://dx.doi.org/10.1002/2015GB005133",
issn = "0886-6236",
language = "en",
targetfile = "feldpausch_amazon.pdf",
urlaccessdate = "27 abr. 2024"
}