@Article{SilvaAYEBABPFWFGKXSSCSFB:2020:EsMuCa,
author = "Silva, Camila Val{\'e}ria J. and Arag{\~a}o, Luiz Eduardo
Oliveira e Cruz de and Young, Paul J. and Esp{\'{\i}}rito-Santo,
Fernando and Berenguer, Erika and Anderson, Liana O. and Brasil,
Izaias and Pontes-Lopes, Aline and Ferreira, Joice and Withey,
Kieran and Fran{\c{c}}a, Filipe and Gra{\c{c}}a, Paulo M. L. A.
and Kirsten, Leticia and Xaud, Haron and Salimon, Cleber and
Scaranello, Marcos A. and Castro, Bruno and Seixas, Marina and
Farias, Renato and Barlow, Jos",
affiliation = "{Lancaster University} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Lancaster University} and {University of
Leicester} and {Lancaster University} and {Centro Nacional de
Monitoramento e Alertas de Desastres Naturais (CEMADEN)} and
{Universidade Estadual do Maranh{\~a}o (UEMA)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Empresa Brasileira de
Pesquisa Agropecu{\'a}ria (EMBRAPA)} and {Lancaster University}
and {Lancaster University} and {Instituto Nacional de Pesquisas da
Amazonia (INPA)} and {Instituto Nacional de Pesquisas da Amazonia
(INPA)} and {Empresa Brasileira de Pesquisa Agropecu{\'a}ria
(EMBRAPA)} and {Universidade Estadual da Para{\'{\i}}ba (UEPB)}
and {Empresa Brasileira de Pesquisa Agropecu{\'a}ria (EMBRAPA)}
and {Instituto de Manejo e Certifica{\c{c}}{\~a}o Florestal e
Agr{\'{\i}}cola (IMAFLORA)} and {Empresa Brasileira de Pesquisa
Agropecu{\'a}ria (EMBRAPA)} and {Instituto Centro de Vida} and
{Lancaster University}",
title = "Estimating the multi-decadal carbon deficit of burned Amazonian
forests",
journal = "Environmental Research Letters",
year = "2020",
volume = "15",
number = "11",
pages = "e114023",
month = "Nov.",
keywords = "wildfires, tropical forests, stem mortality, necromass
decomposition, combustion, CO2 uptake, net emissions.",
abstract = "Wildfires in humid tropical forests have become more common in
recent years, increasing the rates of tree mortality in forests
that have not co-evolved with fire. Estimating carbon emissions
from these wildfires is complex. Current approaches rely on
estimates of committed emissions based on static emission factors
through time and space, yet these emissions cannot be assigned to
specific years, and thus are not comparable with other
temporally-explicit emission sources. Moreover, committed
emissions are gross estimates, whereas the long-term consequences
of wildfires require an understanding of net emissions that
accounts for post-fire uptake of CO2. Here, using a 30 year
wildfire chronosequence from across the Brazilian Amazon, we
calculate net CO2 emissions from Amazon wildfires by developing
statistical models comparing post-fire changes in stem mortality,
necromass decomposition and vegetation growth with unburned forest
plots sampled at the same time. Over the 30 yr time period, gross
emissions from combustion during the fire and subsequent tree
mortality and decomposition were equivalent to 126.1 Mg CO2 ha(-1)
of which 73% (92.4 Mg CO2 ha(-1)) resulted from mortality and
decomposition. These emissions were only partially offset by
forest growth, with an estimated CO2 uptake of 45.0 Mg ha(-1)over
the same time period. Our analysis allowed us to assign emissions
and growth across years, revealing that net annual emissions peak
4 yr after forest fires. At present, Brazil's National Determined
Contribution (NDC) for emissions fails to consider forest fires as
a significant source, even though these are likely to make a
substantial and long-term impact on the net carbon balance of
Amazonia. Considering long-term post-fire necromass decomposition
and vegetation regrowth is crucial for improving global carbon
budget estimates and national greenhouse gases (GHG) inventories
for tropical forest countries.",
doi = "10.1088/1748-9326/abb62c",
url = "http://dx.doi.org/10.1088/1748-9326/abb62c",
issn = "1748-9326",
language = "en",
targetfile = "silva_estimating.pdf",
urlaccessdate = "28 abr. 2024"
}