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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: |
26/07/2023 |
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Data da última atualização: |
26/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VEDOVATO, L. B.; CARVALHO, L. C. S.; ARAGÃO, L. E. O. C.; BIRD, M.; PHILLIPS, O. L.; ALVAREZ, P.; BARLOW, J.; BARTHOLOMEW, D. C.; BERENGUER, E.; CASTRO, W.; FERREIRA, J. N.; FRANÇA, F. M.; MALHI, Y.; MARIMON, B.; MARIMON JÚNIOR, B. H.; MONTEAGUDO, A.; OLIVEIRA, E. A.; PEREIRA, L. O.; PONTES-LOPES, A.; QUESADA, C. A.; SILVA, C. V. J.; ESPEJO, J. E. S.; SILVEIRA, M.; FELDPAUSCH, T. R. |
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Afiliação: |
LAURA B. VEDOVATO, UNIVERSITY OF EXETER; LIDIANY C. S. CARVALHO, UNIVERSITY OF EXETER; LUIZ E. O. C. ARAGÃO, UNIVERSITY OF EXETER; MICHAEL BIRD, JAMES COOK UNIVERSITY; OLIVER L. PHILLIPS, UNIVERSITY OF LEEDS; PATRÍCIA ALVAREZ, DUKE UNIVERSITY; JOS BARLOW, LANCASTER UNIVERSITY; DAVID C. BARTHOLOMEW, UNIVERSITY OF EXETER; ERIKA BERENGUER, LANCASTER UNIVERSITY; WENDESON CASTRO, UNIVERSIDADE FEDERAL DO ACRE; JOICE NUNES FERREIRA, CPATU; FILIPE M. FRANÇA, UNIVERSITY OF BRISTOL; YADVINDER MALHI, UNIVERSITY OF OXFORD; BEATRIZ MARIMON, UNIVERSIDADE DO ESTADO DE MATO GROSSO; BEN HUR MARIMON JÚNIOR, UNIVERSIDADE DO ESTADO DE MATO GROSSO; ABEL MONTEAGUDO, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO; EDMAR A. OLIVEIRA, UNIVERSIDADE DO ESTADO DE MATO GROSSO; LUCIANA O. PEREIRA, UNIVERSITY OF EXETER; ALINE PONTES-LOPES, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; CARLOS A. QUESADA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; CAMILA V. J. SILVA, INSTITUTO DE PESQUISA AMBIENTAL DA AMAZÔNIA; JAVIER E. SILVA ESPEJO, UNIVERSIDAD DE LA SERENA; MARCOS SILVEIRA, UNIVERSIDADE FEDERAL DO ACRE; TED R. FELDPAUSCH, UNIVERSITY OF EXETER. |
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Título: |
Ancient fires enhance Amazon forest drought resistance. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Frontiers in Forests and Global Change, v. 6, 1024101, 2023. |
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DOI: |
https://doi.org/10.3389/ffgc.2023.1024101 |
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Idioma: |
Inglês |
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Conteúdo: |
Drought and fire reduce productivity and increase tree mortality in tropical forests. Fires also produce pyrogenic carbon (PyC), which persists in situ for centuries to millennia, and represents a legacy of past fires, potentially improving soil fertility and water holding capacity and selecting for the survival and recruitment of certain tree life-history (or successional) strategies. We investigated whether PyC is correlated with physicochemical soil properties, wood density, aboveground carbon (AGC) dynamics and forest resistance to severe drought. To achieve our aim, we used an Amazon-wide, long-term plot network, in forests without known recent fires, integrating site-specific measures of forest dynamics, soil properties and a unique soil PyC concentration database. We found that forests with higher concentrations of soil PyC had both higher soil fertility and lower wood density. Soil PyC was not associated with AGC dynamics in non-drought years. However, during extreme drought events (10% driest years), forests with higher concentrations of soil PyC experienced lower reductions in AGC gains (woody growth and recruitment), with this drought-immunizing effect increasing with drought severity. Forests with a legacy of ancient fires are therefore more likely to continue to grow and recruit under increased drought severity. Forests with high soil PyC concentrations (third quartile) had 3.8% greater AGC gains under mean drought, but 33.7% greater under the most extreme drought than forests with low soil PyC concentrations (first quartile), offsetting losses of up to 0.68 Mg C ha?1yr?1 of AGC under extreme drought events. This suggests that ancient fires have legacy effects on current forest dynamics, by altering soil fertility and favoring tree species capable of continued growth and recruitment during droughts. Therefore, mature forest that experienced fires centuries or millennia ago may have greater resistance to current short-term droughts. MenosDrought and fire reduce productivity and increase tree mortality in tropical forests. Fires also produce pyrogenic carbon (PyC), which persists in situ for centuries to millennia, and represents a legacy of past fires, potentially improving soil fertility and water holding capacity and selecting for the survival and recruitment of certain tree life-history (or successional) strategies. We investigated whether PyC is correlated with physicochemical soil properties, wood density, aboveground carbon (AGC) dynamics and forest resistance to severe drought. To achieve our aim, we used an Amazon-wide, long-term plot network, in forests without known recent fires, integrating site-specific measures of forest dynamics, soil properties and a unique soil PyC concentration database. We found that forests with higher concentrations of soil PyC had both higher soil fertility and lower wood density. Soil PyC was not associated with AGC dynamics in non-drought years. However, during extreme drought events (10% driest years), forests with higher concentrations of soil PyC experienced lower reductions in AGC gains (woody growth and recruitment), with this drought-immunizing effect increasing with drought severity. Forests with a legacy of ancient fires are therefore more likely to continue to grow and recruit under increased drought severity. Forests with high soil PyC concentrations (third quartile) had 3.8% greater AGC gains under mean drought, but 33.7% greater under the most extreme droug... Mostrar Tudo |
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Palavras-Chave: |
Carbono pirogênico do solo; Composição florestal; Déficit hídrico; Sequestro de carbono. |
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Thesagro: |
Densidade da Madeira; Fertilidade do Solo. |
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Thesaurus Nal: |
Carbon sequestration; Soil fertility; Soil water deficit; Wood density. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03482naa a2200529 a 4500
001 2155313
005 2023-07-26
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/ffgc.2023.1024101$2DOI
100 1 $aVEDOVATO, L. B.
245 $aAncient fires enhance Amazon forest drought resistance.$h[electronic resource]
260 $c2023
520 $aDrought and fire reduce productivity and increase tree mortality in tropical forests. Fires also produce pyrogenic carbon (PyC), which persists in situ for centuries to millennia, and represents a legacy of past fires, potentially improving soil fertility and water holding capacity and selecting for the survival and recruitment of certain tree life-history (or successional) strategies. We investigated whether PyC is correlated with physicochemical soil properties, wood density, aboveground carbon (AGC) dynamics and forest resistance to severe drought. To achieve our aim, we used an Amazon-wide, long-term plot network, in forests without known recent fires, integrating site-specific measures of forest dynamics, soil properties and a unique soil PyC concentration database. We found that forests with higher concentrations of soil PyC had both higher soil fertility and lower wood density. Soil PyC was not associated with AGC dynamics in non-drought years. However, during extreme drought events (10% driest years), forests with higher concentrations of soil PyC experienced lower reductions in AGC gains (woody growth and recruitment), with this drought-immunizing effect increasing with drought severity. Forests with a legacy of ancient fires are therefore more likely to continue to grow and recruit under increased drought severity. Forests with high soil PyC concentrations (third quartile) had 3.8% greater AGC gains under mean drought, but 33.7% greater under the most extreme drought than forests with low soil PyC concentrations (first quartile), offsetting losses of up to 0.68 Mg C ha?1yr?1 of AGC under extreme drought events. This suggests that ancient fires have legacy effects on current forest dynamics, by altering soil fertility and favoring tree species capable of continued growth and recruitment during droughts. Therefore, mature forest that experienced fires centuries or millennia ago may have greater resistance to current short-term droughts.
650 $aCarbon sequestration
650 $aSoil fertility
650 $aSoil water deficit
650 $aWood density
650 $aDensidade da Madeira
650 $aFertilidade do Solo
653 $aCarbono pirogênico do solo
653 $aComposição florestal
653 $aDéficit hídrico
653 $aSequestro de carbono
700 1 $aCARVALHO, L. C. S.
700 1 $aARAGÃO, L. E. O. C.
700 1 $aBIRD, M.
700 1 $aPHILLIPS, O. L.
700 1 $aALVAREZ, P.
700 1 $aBARLOW, J.
700 1 $aBARTHOLOMEW, D. C.
700 1 $aBERENGUER, E.
700 1 $aCASTRO, W.
700 1 $aFERREIRA, J. N.
700 1 $aFRANÇA, F. M.
700 1 $aMALHI, Y.
700 1 $aMARIMON, B.
700 1 $aMARIMON JÚNIOR, B. H.
700 1 $aMONTEAGUDO, A.
700 1 $aOLIVEIRA, E. A.
700 1 $aPEREIRA, L. O.
700 1 $aPONTES-LOPES, A.
700 1 $aQUESADA, C. A.
700 1 $aSILVA, C. V. J.
700 1 $aESPEJO, J. E. S.
700 1 $aSILVEIRA, M.
700 1 $aFELDPAUSCH, T. R.
773 $tFrontiers in Forests and Global Change$gv. 6, 1024101, 2023.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
04/01/2013 |
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Data da última atualização: |
04/01/2013 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
PEREIRA, J. A.; BELARMINO FILHO, J.; SANTOS, J. F. dos; ARANHA, V. da S. |
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Título: |
Caracteres agronômicos e suas correlações em linhagens de feijão Macassar. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
João Pessoa: EMEPA-PB, 1992. |
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Páginas: |
24 p. |
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Série: |
(EMEPA-PB. Boletim de Pesquisa, 08). |
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Idioma: |
Português |
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Conteúdo: |
O trabalho foi realizado em 1989, estudando-se 44 linhagens de porte enramador e 48 de porte ereto, na estação Experimental Veludo, município de Itaporanga, situado no semi-árido paraibano, objetivando a avaliação de caracteres agronômicos e suas correlações em linhagens de feijão macassar (Vigna unguiculata (L.) Walp.). |
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Thesagro: |
Floração; Produtividade; Vigna Unguiculata. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 00911nam a2200205 a 4500
001 1944105
005 2013-01-04
008 1992 bl uuuu u0uu1 u #d
100 1 $aPEREIRA, J. A.
245 $aCaracteres agronômicos e suas correlações em linhagens de feijão Macassar.
260 $aJoão Pessoa: EMEPA-PB$c1992
300 $a24 p.
490 $a(EMEPA-PB. Boletim de Pesquisa, 08).
520 $aO trabalho foi realizado em 1989, estudando-se 44 linhagens de porte enramador e 48 de porte ereto, na estação Experimental Veludo, município de Itaporanga, situado no semi-árido paraibano, objetivando a avaliação de caracteres agronômicos e suas correlações em linhagens de feijão macassar (Vigna unguiculata (L.) Walp.).
650 $aFloração
650 $aProdutividade
650 $aVigna Unguiculata
700 1 $aBELARMINO FILHO, J.
700 1 $aSANTOS, J. F. dos
700 1 $aARANHA, V. da S.
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