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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
15/05/2018 |
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Data da última atualização: |
22/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROWLAND, L.; COSTA, A. C. L. da; OLIVEIRA, A. A. R.; OLIVEIRA, R. S.; BITTENCOURT, P. L.; COSTA, P. B.; GILES, A. L.; SOSA, A. I.; COUGHLIN, I.; GODLEE, J. L.; VASCONCELOS, S. S.; S. JUNIOR, J. A.; FERREIRA, L. V.; MENCUCCINI, M.; MEIR, P. |
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Afiliação: |
Lucy Rowland, University of Exeter; Antonio C. L. da Costa, UFPA; Alex A. R. Oliveira, MPEG; Rafael S. Oliveira, UNICAMP; Paulo L. Bittencourt, UNICAMP; Patricia B. Costa, UNICAMP; Andre L. Giles, UNICAMP; Azul I. Sosa, UNICAMP; Ingrid Coughlin, USP; John L. Godlee, University of Edinburgh; STEEL SILVA VASCONCELOS, CPATU; João A. S. Junior, UFPA; Leandro V. Ferreira, MPEG; Maurizio Mencuccini, CREAF / ICREA; Patrick Meir, University of Edinburgh / Australian National University. |
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Título: |
Drought stress and tree size determine stem CO2 efflux in a tropical forest. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
New Phytologist, v. 218, n. 4, p. 1393-1405, June 2018. |
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DOI: |
10.1111/nph.15024 |
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Idioma: |
Inglês |
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Conteúdo: |
CO2 efflux from stems (CO2_stem) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. We present a study of tropical forest CO2_stem from 215 trees across wet and dry seasons, at the world?s longest running tropical forest drought experiment site. We show a 27% increase in wet season CO2_stem in the droughted forest relative to a control forest. This was driven by increasing CO2_stem in trees 10?40 cm diameter. Furthermore, we show that drought increases the proportion of maintenance to growth respiration in trees > 20 cm diameter, including large increases in maintenance respiration in the largest droughted trees, > 40 cm diameter. However, we found no clear taxonomic influence on CO2_stem and were unable to accurately predict how drought sensitivity altered ecosystem scale CO2_stem, due to substantial uncertainty introduced by contrasting methods previously employed to scale CO2_stem fluxes. Our findings indicate that under future scenarios of elevated drought, increases in CO2_stem may augment carbon losses, weakening or potentially reversing the tropical forest carbon sink. However, due to substantial uncertainties in scaling CO2_stem fluxes, stand-scale future estimates of changes in stem CO2 emissions remain highly uncertain. |
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Palavras-Chave: |
Estresse hídrico. |
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Thesagro: |
Carbono; Floresta; Floresta Tropical. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176915/1/nph.15024.pdf
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Marc: |
LEADER 02323naa a2200349 a 4500
001 2091469
005 2018-05-22
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/nph.15024$2DOI
100 1 $aROWLAND, L.
245 $aDrought stress and tree size determine stem CO2 efflux in a tropical forest.$h[electronic resource]
260 $c2018
520 $aCO2 efflux from stems (CO2_stem) accounts for a substantial fraction of tropical forest gross primary productivity, but the climate sensitivity of this flux remains poorly understood. We present a study of tropical forest CO2_stem from 215 trees across wet and dry seasons, at the world?s longest running tropical forest drought experiment site. We show a 27% increase in wet season CO2_stem in the droughted forest relative to a control forest. This was driven by increasing CO2_stem in trees 10?40 cm diameter. Furthermore, we show that drought increases the proportion of maintenance to growth respiration in trees > 20 cm diameter, including large increases in maintenance respiration in the largest droughted trees, > 40 cm diameter. However, we found no clear taxonomic influence on CO2_stem and were unable to accurately predict how drought sensitivity altered ecosystem scale CO2_stem, due to substantial uncertainty introduced by contrasting methods previously employed to scale CO2_stem fluxes. Our findings indicate that under future scenarios of elevated drought, increases in CO2_stem may augment carbon losses, weakening or potentially reversing the tropical forest carbon sink. However, due to substantial uncertainties in scaling CO2_stem fluxes, stand-scale future estimates of changes in stem CO2 emissions remain highly uncertain.
650 $aCarbono
650 $aFloresta
650 $aFloresta Tropical
653 $aEstresse hídrico
700 1 $aCOSTA, A. C. L. da
700 1 $aOLIVEIRA, A. A. R.
700 1 $aOLIVEIRA, R. S.
700 1 $aBITTENCOURT, P. L.
700 1 $aCOSTA, P. B.
700 1 $aGILES, A. L.
700 1 $aSOSA, A. I.
700 1 $aCOUGHLIN, I.
700 1 $aGODLEE, J. L.
700 1 $aVASCONCELOS, S. S.
700 1 $aS. JUNIOR, J. A.
700 1 $aFERREIRA, L. V.
700 1 $aMENCUCCINI, M.
700 1 $aMEIR, P.
773 $tNew Phytologist$gv. 218, n. 4, p. 1393-1405, June 2018.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
09/10/2017 |
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Data da última atualização: |
03/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BERES, C.; COSTA, G. N. C.; CABEZUDO, I.; SILVA-JAMES, N. K.; TELES, A. S. C.; CRUZ, A. P. G.; SILVA, C. M.; TONON, R. V.; CABRAL, L. M. C.; FREITAS, S. P. |
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Afiliação: |
CAROLINA BERES, UFRJ; GISLAINE N. C. COSTA, UFRJ; INACIO CABEZUDO, NATIONAL UNIVERSITY OF ROSARIO; NINA K. DA SILVA-JAMES, UFRJ; ALINE S. C. TELES, UFRJ; ANA P. G. CRUZ, UFRJ; CAROLINE MELLINGER SILVA, CTAA; RENATA VALERIANO TONON, CTAA; LOURDES MARIA CORREA CABRAL, CTAA; SUELY P. FREITAS, UFRJ. |
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Título: |
Towards integral utilization of grape pomace from winemaking process: A review. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Waste Management, v. 68, p. 581-594, 2017. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Dietary fibre; Grape seed oil; Sustainable winemaking; Wine processing. |
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Thesaurus NAL: |
Food processing; grape pomace; phenolic compounds; Pomace. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 00879naa a2200313 a 4500
001 2077005
005 2018-01-03
008 2017 bl uuuu u00u1 u #d
100 1 $aBERES, C.
245 $aTowards integral utilization of grape pomace from winemaking process$bA review.$h[electronic resource]
260 $c2017
650 $aFood processing
650 $agrape pomace
650 $aphenolic compounds
650 $aPomace
653 $aDietary fibre
653 $aGrape seed oil
653 $aSustainable winemaking
653 $aWine processing
700 1 $aCOSTA, G. N. C.
700 1 $aCABEZUDO, I.
700 1 $aSILVA-JAMES, N. K.
700 1 $aTELES, A. S. C.
700 1 $aCRUZ, A. P. G.
700 1 $aSILVA, C. M.
700 1 $aTONON, R. V.
700 1 $aCABRAL, L. M. C.
700 1 $aFREITAS, S. P.
773 $tWaste Management$gv. 68, p. 581-594, 2017.
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Embrapa Agroindústria de Alimentos (CTAA) |
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