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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 Agroindústria de Alimentos. |
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Data corrente: |
31/12/2022 |
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Data da última atualização: |
12/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SANTOS, T. B. DOS; FREIRE NETO, R. DA S.; COLLANTES, N. F.; CHÁVEZ, D. W. H.; QUEIROZ, V. A. V.; CARVALHO, C. W. P. de. |
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Afiliação: |
THAÍS BARBOSA DOS SANTOS, UFRRJ; RAIMUNDO DA SILVA FREIRE NETO, UFRRJ; NATHALIA FERREIRA COLLANTES, UFRRJ; DAVY WILLIAM HIDALGO CHÁVEZ, UFRRJ; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; CARLOS WANDERLEI PILER DE CARVALHO, CTAA. |
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Título: |
Exploring starches from varied sorghum genotypes compared to commercial maize starch. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Food Process Engineering, v. 46, n. 10, 2023, |
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DOI: |
https://doi.org/10.1111/jfpe.14251 |
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Idioma: |
Inglês |
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Conteúdo: |
Sorghum has been lately attracted the attention for human consumption as a glutenfree cereal rich in bioactive compounds. Sorghum starches isolated from brown (BRS305), red (BRS308), and white (CMSXS180) genotypes were compared to commercial maize starch, based on proximate composition, particle size distribution, microstructure, X-ray diffraction, amylose and total starch content, solubility index, swelling power, pasting, and thermal properties. The carbohydrate content of sorghum starch samples ranged from 98.24 to 99.23 g/100 g (dry basis). The particle size distribution of the CMSXS180 sorghum genotype was very similar to commercial maize starch. The relative crystallinity values varied from 29.83% to 30.39%. The water solubility index and swelling power of sorghum starches were lower than those of maize starch. Sorghum genotypes paste profiles were similar, but greatly differed from maize showing the highest final viscosity (4042.0?4444.5 cP) compared to maize starch (3767.5 cP) and lower gelatinization enthalpy (?H = 9?10.5 J/g) than maize starch (11.8 J/g). The results showed some distinct properties of sorghum starches when compared to maize starch, which may contribute to provide alternative uses, particularly in food products requiring very high viscosity and retrogradation. |
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Palavras-Chave: |
Isolation; Pearson's correlation. |
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Thesagro: |
Amido; Genótipo; Milho; Sorgo; Viscosidade. |
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Thesaurus NAL: |
Food technology; Pastes; Swelling (materials); Viscosity. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02232naa a2200325 a 4500
001 2150506
005 2023-12-12
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/jfpe.14251$2DOI
100 1 $aSANTOS, T. B. DOS
245 $aExploring starches from varied sorghum genotypes compared to commercial maize starch.$h[electronic resource]
260 $c2023
520 $aSorghum has been lately attracted the attention for human consumption as a glutenfree cereal rich in bioactive compounds. Sorghum starches isolated from brown (BRS305), red (BRS308), and white (CMSXS180) genotypes were compared to commercial maize starch, based on proximate composition, particle size distribution, microstructure, X-ray diffraction, amylose and total starch content, solubility index, swelling power, pasting, and thermal properties. The carbohydrate content of sorghum starch samples ranged from 98.24 to 99.23 g/100 g (dry basis). The particle size distribution of the CMSXS180 sorghum genotype was very similar to commercial maize starch. The relative crystallinity values varied from 29.83% to 30.39%. The water solubility index and swelling power of sorghum starches were lower than those of maize starch. Sorghum genotypes paste profiles were similar, but greatly differed from maize showing the highest final viscosity (4042.0?4444.5 cP) compared to maize starch (3767.5 cP) and lower gelatinization enthalpy (?H = 9?10.5 J/g) than maize starch (11.8 J/g). The results showed some distinct properties of sorghum starches when compared to maize starch, which may contribute to provide alternative uses, particularly in food products requiring very high viscosity and retrogradation.
650 $aFood technology
650 $aPastes
650 $aSwelling (materials)
650 $aViscosity
650 $aAmido
650 $aGenótipo
650 $aMilho
650 $aSorgo
650 $aViscosidade
653 $aIsolation
653 $aPearson's correlation
700 1 $aFREIRE NETO, R. DA S.
700 1 $aCOLLANTES, N. F.
700 1 $aCHÁVEZ, D. W. H.
700 1 $aQUEIROZ, V. A. V.
700 1 $aCARVALHO, C. W. P. de
773 $tJournal of Food Process Engineering$gv. 46, n. 10, 2023
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Embrapa Agroindústria de Alimentos (CTAA) |
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