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| Registros recuperados : 30 | |
| 5. |  | MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; MENCUCCINI, M.; CHRISTOFFERSEN, B.; VASCONCELOS, S.; KRUIJT, B.; FERREIRA, L. Responses to severe drought by tropical forest trees. In: ANNUAL CONFERENCE OF THE SOCIETY FOR TROPICAL ECOLOGY, 2015, Zürich. Resilience of tropical ecosystems - future challenges and opportunities. Zurich: GTO, 2015. p. 159.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S.; MENCUCCINI, M.; CHRISTOFFERSEN, B.; FERREIRA, L. Resistance and mortality in tropical forest trees during experimental drought. In: ESA ANNUAL MEETING, 100., 2015, Baltimore. Book of Abstracts. [S.l.: s.n.], 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; MENCUCCINI, M. Limited acclimation in leaf anatomy to experimental drought in tropical rainforest trees. Tree Physiology, v. 36, n. 12, p. 1550-1561, 2016.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 9. | | NEVES, L. de O.; COSTA, J. M. N. da; COSTA, A. C. L. da; FERREIRA, W. P. M.; ANDRADE, V. M.; OLIVEIRA, F. A.; OLIVEIRA, E. C. de. Partição dos componentes do balanço de energia na cultura do fejião caupi (Vigna uniguiculata (L.). In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 15., 2007, Aracaju. Efeito das mudanças climáticas na agricultura: anais... Aracaju: Sociedade Brasileira de Agrometeorologia: Embrapa Tabuleiros Costeiros, 2007. 1 CD-ROM.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; MENCUCCINI, M.; OLIVEIRA, R.; BINKS, O.; VASCONCELOS, S. S.; OLIVEIRA, A. de; SALMON, Y.; FERREIRA, L.; MEIR, P. The effects of drought on respiration in tropical rainforest. In: ANNUAL MEETING OF THE ASSOCIATION FOR TROPICAL BIOLOGY AND CONSERVATION, 53., 2016, Montpellier. Tropical ecology and society: reconciling conservation and sustainable use of biodiversity: program & abstracts. [S.l.]: ATBC, 2016. p. 202.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | SOUZA, G. N. B. de; ARAUJO, A. C. de; VASCONCELOS, S. S.; LEAL, L. do S. M.; PINTO, C. A. D.; COSTA, A. C. L. da. Influência da umidade do solo sobre a variação do efluxo de CO2 do solo na floresta nacional de Caxiuanã-PA. In: WORKSHOP BRASILEIRO DE MICROMETEOROLOGIA, 10., 2017, Santa Maria, RS. [Anais]. [Santa Maria: UFSM, 2017].| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 12. | | BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; CHRISTOFFERSEN, B.; NARDINI, A.; MENCUCCINI, M. Plasticity in leaf-level water relations of tropical rainforest trees in response to experimental drought. New Phytologist, v. 211, n. 2, p. 477-488, July 2016.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 13. | | BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; CHRISTOFFERSEN, B.; NARDINI, A.; MENCUCCINI, M. Plasticity in the water relations and anatomy of leaves of tropical rainforest trees in response to experimental drought. In: ANNUAL MEETING OF THE ASSOCIATION FOR TROPICAL BIOLOGY AND CONSERVATION, 53., 2016, Montpellier. Tropical ecology and society: reconciling conservation and sustainable use of biodiversity: program & abstracts. [S.l.]: ATBC, 2016. p. 131.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | ROWLAND, L.; LOBO-DO-VALE, R. L.; CHRISTOFFERSEN, B. O.; MELÉM, E. A.; KRUIJT, B.; VASCONCELOS, S. S.; DOMINGUES, T.; BINKS, O. J.; OLIVEIRA, A. A. R.; METCALFE, D.; COSTA, A. C. L. da; MENCUCCINI, M.; MEIR, P. After more than a decade of soil moisture deficit tropical rainforest trees maintain photosynthetic capacity, despite increased leaf respiration. Global Change Biology, v. 21, n. 12, p. 4662-4672, Dec. 2015.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | SILVA JUNIOR, J. de A.; COSTA, A. C. L. da; SANTIAGO, A. V.; RODRIGUES, H. J. B.; COSTA, R. F. da; LIMA, A. M. M. de; MORAES, B. C. de; SOUZA, F. T. M. de. Influência do el niño nas condições de conforto térmico na cidade de Belém. In: SIMPÓSIO INTERNACIONAL DE CLIMATOLOGIA, 7., 2017, Petropólis. Anais. [S.l.]: SBMET, 2017.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 16. | | OLIVEIRA, P. J. de; COSTA, R. F. da; COSTA, A. C. L. da; COSTA, J. M. N. da; MALHI, Y.; MEIR, P.; SILVA, R. B. C.; ANDRADE, V. M. S.; SILVA JÚNIOR, J. A.; BRAGA, A.; GONÇALVES, P. H. L. Fechamento do balanço de energia em um ecossistema de manguezal paraense. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 13., 2003, Santa Maria. Situação atual e perspectivas da agrometeorologia: anais... Santa Maria: UNIFRA: SBA: UFSM, 2003. p. 141-142.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 17. | | COSTA, A. C. L. da; ROWLAND, L.; OLIVEIRA, R. S.; OLIVEIRA, A. A. R.; BINKS, O. J.; SALMON, Y.; VASCONCELOS, S. S.; S. JUNIOR, J. A.; FERREIRA, L. V.; POYATOS, R.; MENCUCCINI, M.; MEIR, P. Stand dynamics modulate water cycling and mortality risk in droughted tropical forest. Global Change Biology, v. 24, n. 1, p. 249-258, Jan. 2018.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 18. | | OLIVEIRA, M. do C. F. de; PEREIRA, M. das G. P.; SOUZA, P. F. de S. e; COSTA, J. de P. R. da; COSTA, A. C. L. da; COSTA, M. C. da. Variações sazonais dos componentes do balanço de radiação e energia na reserva florestal de Caxiuanã. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 13., 2003, Santa Maria. Situação atual e perspectivas da agrometeorologia: anais. Santa Maria: UNIFRA: SBA: UFSM, 2003. p. 37-38.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 19. | | 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. Drought stress and tree size determine stem CO2 efflux in a tropical forest. New Phytologist, v. 218, n. 4, p. 1393-1405, June 2018.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 20. | | PINTO, C. A. D.; SILVA JÚNIOR, J. de A.; CUNHA, A. C. da; SILVA, J. F. B. R. da; D'OLIVEIRA, F. A. F.; SOUSA, L. H.; COSTA, A. C. L. da; NUNES, H. G. G. C.; ATAIDE, W. L. da S.; SILVA, S. P. A. da; RODRIGUES, H. J. B.; SOUZA FILHO, J. D. da. Índice de anomalia de chuva (IAC) e sua relação com os desastres naturais no leste da Amazônia. Revista Brasileira de Geografia Física, v. 15, n. 5, p. 2544-2572, 2022.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 30 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
16/11/2015 |
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Data da última atualização: |
30/05/2022 |
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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: |
ROWLAND, L.; LOBO-DO-VALE, R. L.; CHRISTOFFERSEN, B. O.; MELÉM, E. A.; KRUIJT, B.; VASCONCELOS, S. S.; DOMINGUES, T.; BINKS, O. J.; OLIVEIRA, A. A. R.; METCALFE, D.; COSTA, A. C. L. da; MENCUCCINI, M.; MEIR, P. |
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Afiliação: |
LUCY ROWLAND, University of Edinburgh; RAQUEL L. LOBO-DO-VALE, University of Lisbon; BRADLEY O. CHRISTOFFERSEN, University of Edinburgh / Los Alamos National Laboratory; ELIANE A. MELÉM, CPATU; BART KRUIJT, Alterra; STEEL SILVA VASCONCELOS, CPATU; TOMAS DOMINGUES, USP; OLIVER J . BINKS, University of Edinburgh; ALEX A. R. OLIVEIRA, UFPA; DANIEL METCALFE, Lund University; ANTONIO C. L. DA COSTA, UFPA; MAURIZIO MENCUCCINI, University of Edinburgh / ICREA at CREAF; PATRICK MEIR, University of Edinburgh / Australian National University. |
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Título: |
After more than a decade of soil moisture deficit tropical rainforest trees maintain photosynthetic capacity, despite increased leaf respiration. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Global Change Biology, v. 21, n. 12, p. 4662-4672, Dec. 2015. |
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DOI: |
10.1111/gcb.13035 |
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Idioma: |
Inglês |
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Conteúdo: |
Determining climate change feedbacks from tropical rainforests requires an understanding of how carbon gain through photosynthesis and loss through respiration will be altered. One of the key changes that tropical rainforests may experience under future climate change scenarios is reduced soil moisture availability. In this study we examine if and how both leaf photosynthesis and leaf dark respiration acclimate following more than 12 years of experimental soil moisture deficit, via a through-fall exclusion experiment (TFE) in an eastern Amazonian rainforest. We find that experimentally drought-stressed trees and taxa maintain the same maximum leaf photosynthetic capacity as trees in corresponding control forest, independent of their susceptibility to drought-induced mortality. We hypothesize that photosynthetic capacity is maintained across all treatments and taxa to take advantage of short-lived periods of high moisture availability, when stomatal conductance (gs) and photosynthesis can increase rapidly, potentially compensating for reduced assimilate supply at other times. Average leaf dark respiration (Rd) was elevated in the TFE-treated forest trees relative to the control by 28.2 ± 2.8% (mean ± one standard error). This mean Rd value was dominated by a 48.5 ± 3.6% increase in the Rd of drought-sensitive taxa, and likely reflects the need for additional metabolic support required for stress-related repair, and hydraulic or osmotic maintenance processes. Following soil moisture deficit that is maintained for several years, our data suggest that changes in respiration drive greater shifts in the canopy carbon balance, than changes in photosynthetic capacity. MenosDetermining climate change feedbacks from tropical rainforests requires an understanding of how carbon gain through photosynthesis and loss through respiration will be altered. One of the key changes that tropical rainforests may experience under future climate change scenarios is reduced soil moisture availability. In this study we examine if and how both leaf photosynthesis and leaf dark respiration acclimate following more than 12 years of experimental soil moisture deficit, via a through-fall exclusion experiment (TFE) in an eastern Amazonian rainforest. We find that experimentally drought-stressed trees and taxa maintain the same maximum leaf photosynthetic capacity as trees in corresponding control forest, independent of their susceptibility to drought-induced mortality. We hypothesize that photosynthetic capacity is maintained across all treatments and taxa to take advantage of short-lived periods of high moisture availability, when stomatal conductance (gs) and photosynthesis can increase rapidly, potentially compensating for reduced assimilate supply at other times. Average leaf dark respiration (Rd) was elevated in the TFE-treated forest trees relative to the control by 28.2 ± 2.8% (mean ± one standard error). This mean Rd value was dominated by a 48.5 ± 3.6% increase in the Rd of drought-sensitive taxa, and likely reflects the need for additional metabolic support required for stress-related repair, and hydraulic or osmotic maintenance processes. Following soil mo... Mostrar Tudo |
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Palavras-Chave: |
Capacidade fotossintética. |
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Thesagro: |
Floresta Tropical; Mudança Climática; Seca; Solo. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02716naa a2200337 a 4500
001 2028611
005 2022-05-30
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/gcb.13035$2DOI
100 1 $aROWLAND, L.
245 $aAfter more than a decade of soil moisture deficit tropical rainforest trees maintain photosynthetic capacity, despite increased leaf respiration.$h[electronic resource]
260 $c2015
520 $aDetermining climate change feedbacks from tropical rainforests requires an understanding of how carbon gain through photosynthesis and loss through respiration will be altered. One of the key changes that tropical rainforests may experience under future climate change scenarios is reduced soil moisture availability. In this study we examine if and how both leaf photosynthesis and leaf dark respiration acclimate following more than 12 years of experimental soil moisture deficit, via a through-fall exclusion experiment (TFE) in an eastern Amazonian rainforest. We find that experimentally drought-stressed trees and taxa maintain the same maximum leaf photosynthetic capacity as trees in corresponding control forest, independent of their susceptibility to drought-induced mortality. We hypothesize that photosynthetic capacity is maintained across all treatments and taxa to take advantage of short-lived periods of high moisture availability, when stomatal conductance (gs) and photosynthesis can increase rapidly, potentially compensating for reduced assimilate supply at other times. Average leaf dark respiration (Rd) was elevated in the TFE-treated forest trees relative to the control by 28.2 ± 2.8% (mean ± one standard error). This mean Rd value was dominated by a 48.5 ± 3.6% increase in the Rd of drought-sensitive taxa, and likely reflects the need for additional metabolic support required for stress-related repair, and hydraulic or osmotic maintenance processes. Following soil moisture deficit that is maintained for several years, our data suggest that changes in respiration drive greater shifts in the canopy carbon balance, than changes in photosynthetic capacity.
650 $aFloresta Tropical
650 $aMudança Climática
650 $aSeca
650 $aSolo
653 $aCapacidade fotossintética
700 1 $aLOBO-DO-VALE, R. L.
700 1 $aCHRISTOFFERSEN, B. O.
700 1 $aMELÉM, E. A.
700 1 $aKRUIJT, B.
700 1 $aVASCONCELOS, S. S.
700 1 $aDOMINGUES, T.
700 1 $aBINKS, O. J.
700 1 $aOLIVEIRA, A. A. R.
700 1 $aMETCALFE, D.
700 1 $aCOSTA, A. C. L. da
700 1 $aMENCUCCINI, M.
700 1 $aMEIR, P.
773 $tGlobal Change Biology$gv. 21, n. 12, p. 4662-4672, Dec. 2015.
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