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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
12/03/2019 |
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Data da última atualização: |
27/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERENGUER, E.; MALHI, Y.; BRANDO, P.; CORDEIRO, A. C. N.; FERREIRA, J. N.; FRANÇA, F.; ROSSI, L. C.; SEIXAS, M. M. M. de; BARLOW, J. |
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Afiliação: |
Erika Berenguer, University of Oxford / Lancaster University; Yadvinder Malhi, University of Oxford; Paulo Brando, The Woods Hole Research Center / Instituto de Pesquisa Ambiental da Amazônia; Amanda Cardoso Nunes Cordeiro, UFPA; JOICE NUNES FERREIRA, CPATU; Filipe França, Lancaster University / CPATU / IFMG; Liana Chesini Rossi, UNESP; Marina Maria Moraes de Seixas, COLABORADORA CPATU; Jos Barlow, Lancaster University / MPEG. |
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Título: |
Tree growth and stem carbon accumulation in human-modified Amazonian forests following drought and fire. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Philosophical Transactions of the Royal Society B, v. 373, n. 1760, p. 1-8, Nov. 2018. |
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DOI: |
10.1098/rstb.2017.0308 |
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Idioma: |
Inglês |
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Conteúdo: |
Human-modified forests are an ever-increasing feature across the Amazon Basin, but little is known about how stem growth is influenced by extreme climatic events and the resulting wildfires. Here we assess for the first time the impacts of human-driven disturbance in combination with El Niño?mediated droughts and fires on tree growth and carbon accumulation. We found that after 2.5 years of continuous measurements, there was no difference in stem carbon accumulation between undisturbed and human-modified forests. Furthermore, the extreme drought caused by the El Niño did not affect carbon accumulation rates in surviving trees. In recently burned forests, trees grew significantly more than in unburned ones, regardless of their history of previous human disturbance. Wood density was the only significant factor that helped explain the difference in growth between trees in burned and unburned forests, with low wood?density trees growing significantly more in burned sites. Our results suggest stem carbon accumulation is resistant to human disturbance and one-off extreme drought events, and it is stimulated immediately after wildfires. However, these results should be seen with caution?without accounting for carbon losses, recruitment and longer-term changes in species composition, we cannot fully understand the impacts of drought and fire in the carbon balance of human-modified forests. |
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Thesagro: |
Árvore; Carbono; Crescimento; Floresta. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02228naa a2200277 a 4500
001 2106965
005 2019-12-27
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1098/rstb.2017.0308$2DOI
100 1 $aBERENGUER, E.
245 $aTree growth and stem carbon accumulation in human-modified Amazonian forests following drought and fire.$h[electronic resource]
260 $c2018
520 $aHuman-modified forests are an ever-increasing feature across the Amazon Basin, but little is known about how stem growth is influenced by extreme climatic events and the resulting wildfires. Here we assess for the first time the impacts of human-driven disturbance in combination with El Niño?mediated droughts and fires on tree growth and carbon accumulation. We found that after 2.5 years of continuous measurements, there was no difference in stem carbon accumulation between undisturbed and human-modified forests. Furthermore, the extreme drought caused by the El Niño did not affect carbon accumulation rates in surviving trees. In recently burned forests, trees grew significantly more than in unburned ones, regardless of their history of previous human disturbance. Wood density was the only significant factor that helped explain the difference in growth between trees in burned and unburned forests, with low wood?density trees growing significantly more in burned sites. Our results suggest stem carbon accumulation is resistant to human disturbance and one-off extreme drought events, and it is stimulated immediately after wildfires. However, these results should be seen with caution?without accounting for carbon losses, recruitment and longer-term changes in species composition, we cannot fully understand the impacts of drought and fire in the carbon balance of human-modified forests.
650 $aÁrvore
650 $aCarbono
650 $aCrescimento
650 $aFloresta
700 1 $aMALHI, Y.
700 1 $aBRANDO, P.
700 1 $aCORDEIRO, A. C. N.
700 1 $aFERREIRA, J. N.
700 1 $aFRANÇA, F.
700 1 $aROSSI, L. C.
700 1 $aSEIXAS, M. M. M. de
700 1 $aBARLOW, J.
773 $tPhilosophical Transactions of the Royal Society B$gv. 373, n. 1760, p. 1-8, Nov. 2018.
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