Current and future patterns of fire-induced forest degradation in Amazonia

Detalhes bibliográficos
Autor(a) principal: Bruno L. de Faria
Data de Publicação: 2017
Outros Autores: Paulo M. Brando, Marcia N. Macedo, Prajjwal K. Panday, Britaldo Silveira Soares Filho, Michael T. Coe
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFMG
Texto Completo: https://doi.org/10.1088/1748-9326/aa69ce
http://hdl.handle.net/1843/52116
https://orcid.org/0000-0002-8560-0034
https://orcid.org/0000-0001-8952-7025
https://orcid.org/0000-0002-1287-2004
https://orcid.org/0000-0002-7703-946X
https://orcid.org/0000-0002-7470-0697
Resumo: CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
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spelling 2023-04-17T22:32:12Z2023-04-17T22:32:12Z2017129012https://doi.org/10.1088/1748-9326/aa69ce1748-9326http://hdl.handle.net/1843/52116https://orcid.org/0000-0002-8560-0034https://orcid.org/0000-0001-8952-7025https://orcid.org/0000-0002-1287-2004https://orcid.org/0000-0002-7703-946Xhttps://orcid.org/0000-0002-7470-0697CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisAmazon droughts directly increase forest flammability by reducing forest understory air and fuel moisture. Droughts also increase forest flammability indirectly by decreasing soil moisture, triggering leaf shedding, branch loss, and tree mortality—all of which contribute to increased fuel loads. These direct and indirect effects can cause widespread forest fires that reduce forest carbon stocks in the Amazon, with potentially important consequences for the global carbon cycle. These processes are expected to become more widespread, common, and intense as global climate changes, yet the mechanisms linking droughts, wildfires, and associated changes in carbon stocks remain poorly understood. Here, we expanded the capabilities of a dynamic forest carbon model to better represent (1) drought effects on carbon and fuel dynamics and (2) understory fire behavior and severity. We used the refined model to quantify changes in PanAmazon live carbon stocks as a function of the maximum climatological water deficit (MCWD) and fire intensity, under both historical and future climate conditions. We found that the 2005 and 2010 droughts increased potential fire intensity by 226 kW m1 and 494 kW m1 , respectively. These increases were due primarily to increased understory dryness (109 kW m1 in 2005; 124 kW m1 in 2010) and altered forest structure (117 kW m1 in 2005; 370 kW m1 in 2010) effects. Combined, these historic droughts drove total simulated reductions in live carbon stocks of 0.016 (2005) and 0.027 (2010) PgC across the Amazon Basin. Projected increases in future fire intensity increased simulated carbon losses by up to 90% per unit area burned, compared with modern climate. Increased air temperature was the primary driver of changes in simulated future fire intensity, while reduced precipitation was secondary, particularly in the eastern portion of the Basin. Our results show that fire-drought interactions strongly affect live carbon stocks and that future climate change, combined with the synergistic effects of drought on forest flammability, may strongly influence the stability of tropical forests in the future.engUniversidade Federal de Minas GeraisUFMGBrasilIGC - DEPARTAMENTO DE CARTOGRAFIAEnviromental Research LettersAmazôniaMudanças climáticasMudanças climáticas - AmazôniaSecasQueimadaAmazonClimate changeDroughtFire intensityFire severityCMIP5Fire modelingCurrent and future patterns of fire-induced forest degradation in Amazoniainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://iopscience.iop.org/article/10.1088/1748-9326/aa69ceBruno L. de FariaPaulo M. BrandoMarcia N. MacedoPrajjwal K. PandayBritaldo Silveira Soares FilhoMichael T. 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dc.title.pt_BR.fl_str_mv Current and future patterns of fire-induced forest degradation in Amazonia
title Current and future patterns of fire-induced forest degradation in Amazonia
spellingShingle Current and future patterns of fire-induced forest degradation in Amazonia
Bruno L. de Faria
Amazon
Climate change
Drought
Fire intensity
Fire severity
CMIP5
Fire modeling
Amazônia
Mudanças climáticas
Mudanças climáticas - Amazônia
Secas
Queimada
title_short Current and future patterns of fire-induced forest degradation in Amazonia
title_full Current and future patterns of fire-induced forest degradation in Amazonia
title_fullStr Current and future patterns of fire-induced forest degradation in Amazonia
title_full_unstemmed Current and future patterns of fire-induced forest degradation in Amazonia
title_sort Current and future patterns of fire-induced forest degradation in Amazonia
author Bruno L. de Faria
author_facet Bruno L. de Faria
Paulo M. Brando
Marcia N. Macedo
Prajjwal K. Panday
Britaldo Silveira Soares Filho
Michael T. Coe
author_role author
author2 Paulo M. Brando
Marcia N. Macedo
Prajjwal K. Panday
Britaldo Silveira Soares Filho
Michael T. Coe
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Bruno L. de Faria
Paulo M. Brando
Marcia N. Macedo
Prajjwal K. Panday
Britaldo Silveira Soares Filho
Michael T. Coe
dc.subject.por.fl_str_mv Amazon
Climate change
Drought
Fire intensity
Fire severity
CMIP5
Fire modeling
topic Amazon
Climate change
Drought
Fire intensity
Fire severity
CMIP5
Fire modeling
Amazônia
Mudanças climáticas
Mudanças climáticas - Amazônia
Secas
Queimada
dc.subject.other.pt_BR.fl_str_mv Amazônia
Mudanças climáticas
Mudanças climáticas - Amazônia
Secas
Queimada
description CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2023-04-17T22:32:12Z
dc.date.available.fl_str_mv 2023-04-17T22:32:12Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1843/52116
dc.identifier.doi.pt_BR.fl_str_mv https://doi.org/10.1088/1748-9326/aa69ce
dc.identifier.issn.pt_BR.fl_str_mv 1748-9326
dc.identifier.orcid.pt_BR.fl_str_mv https://orcid.org/0000-0002-8560-0034
https://orcid.org/0000-0001-8952-7025
https://orcid.org/0000-0002-1287-2004
https://orcid.org/0000-0002-7703-946X
https://orcid.org/0000-0002-7470-0697
url https://doi.org/10.1088/1748-9326/aa69ce
http://hdl.handle.net/1843/52116
https://orcid.org/0000-0002-8560-0034
https://orcid.org/0000-0001-8952-7025
https://orcid.org/0000-0002-1287-2004
https://orcid.org/0000-0002-7703-946X
https://orcid.org/0000-0002-7470-0697
identifier_str_mv 1748-9326
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Enviromental Research Letters
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.publisher.initials.fl_str_mv UFMG
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv IGC - DEPARTAMENTO DE CARTOGRAFIA
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
bitstream.url.fl_str_mv https://repositorio.ufmg.br/bitstream/1843/52116/1/License.txt
https://repositorio.ufmg.br/bitstream/1843/52116/2/currentandfuturepatternsoffire-induced.pdf
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