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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: |
16/10/2018 |
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Data da última atualização: |
19/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GERBRAND, K.; SCHAIK, E. van; ARAUJO, A. C. de; BOERSMA, K. F.; GÄRTNER, A.; KILLAARS, L.; KOOREMAN, M. L.; KRUIJT, B.; LAAN-LUIJKX, I. T. van der; RANDOW, C. von; SMITH, N. E.; PETERS, W. |
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Afiliação: |
Gerbrand Koren, Wageningen University and Research; Erik van Schaik, Wageningen University and Research; ALESSANDRO CARIOCA DE ARAUJO, CPATU; K. Folkert Boersma, Wageningen University and Research / Royal Netherlands Meteorological Institute; Antje Gärtner, Wageningen University and Research; Lars Killaars, University of Groningen; Maurits L. Kooreman, Royal Netherlands Meteorological Institute; Bart Kruijt, Wageningen University and Research; Ingrid T. van der Laan-Luijkx, Wageningen University and Research; Celso von Randow, INPE; Naomi E. Smith, Wageningen University and Research; Wouter Peters, Wageningen University and Research / University of Groningen. |
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Título: |
Widespread reduction in sun-induced fluorescence from the Amazon during the 2015/2016 El Niño. |
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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, 2018. |
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DOI: |
10.1098/rstb.2017.0408 |
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Idioma: |
Inglês |
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Conteúdo: |
The tropical carbon balance dominates year-to-year variations in the CO2 exchange with the atmosphere through photosynthesis, respiration and fires. Because of its high correlation with gross primary productivity (GPP), observations of sun-induced fluorescence (SIF) are of great interest. We developed a new remotely sensed SIF product with improved signal-to-noise in the tropics, and use it here to quantify the impact of the 2015/2016 El Niño Amazon drought. We find that SIF was strongly suppressed over areas with anomalously high temperatures and decreased levels of water in the soil. SIF went below its climatological range starting from the end of the 2015 dry season (October) and returned to normal levels by February 2016 when atmospheric conditions returned to normal, but well before the end of anomalously low precipitation that persisted through June 2016. Impacts were not uniform across the Amazon basin, with the eastern part experiencing much larger (10?15%) SIF reductions than the western part of the basin (2?5%). We estimate the integrated loss of GPP relative to eight previous years to be 0.34?0.48 PgC in the three-month period October?November?December 2015. This article is part of a discussion meeting issue "The impact of the 2015/2016 El Niño on the terrestrial tropical carbon cycle: patterns, mechanisms and implications". |
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Palavras-Chave: |
Ciclo do carbono. |
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Thesagro: |
Carbono; Floresta Tropical; Mudança Climática; Seca. |
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Thesaurus Nal: |
Amazonia; El Nino. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02356naa a2200349 a 4500
001 2097475
005 2022-05-19
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1098/rstb.2017.0408$2DOI
100 1 $aGERBRAND, K.
245 $aWidespread reduction in sun-induced fluorescence from the Amazon during the 2015/2016 El Niño.$h[electronic resource]
260 $c2018
520 $aThe tropical carbon balance dominates year-to-year variations in the CO2 exchange with the atmosphere through photosynthesis, respiration and fires. Because of its high correlation with gross primary productivity (GPP), observations of sun-induced fluorescence (SIF) are of great interest. We developed a new remotely sensed SIF product with improved signal-to-noise in the tropics, and use it here to quantify the impact of the 2015/2016 El Niño Amazon drought. We find that SIF was strongly suppressed over areas with anomalously high temperatures and decreased levels of water in the soil. SIF went below its climatological range starting from the end of the 2015 dry season (October) and returned to normal levels by February 2016 when atmospheric conditions returned to normal, but well before the end of anomalously low precipitation that persisted through June 2016. Impacts were not uniform across the Amazon basin, with the eastern part experiencing much larger (10?15%) SIF reductions than the western part of the basin (2?5%). We estimate the integrated loss of GPP relative to eight previous years to be 0.34?0.48 PgC in the three-month period October?November?December 2015. This article is part of a discussion meeting issue "The impact of the 2015/2016 El Niño on the terrestrial tropical carbon cycle: patterns, mechanisms and implications".
650 $aAmazonia
650 $aEl Nino
650 $aCarbono
650 $aFloresta Tropical
650 $aMudança Climática
650 $aSeca
653 $aCiclo do carbono
700 1 $aSCHAIK, E. van
700 1 $aARAUJO, A. C. de
700 1 $aBOERSMA, K. F.
700 1 $aGÄRTNER, A.
700 1 $aKILLAARS, L.
700 1 $aKOOREMAN, M. L.
700 1 $aKRUIJT, B.
700 1 $aLAAN-LUIJKX, I. T. van der
700 1 $aRANDOW, C. von
700 1 $aSMITH, N. E.
700 1 $aPETERS, W.
773 $tPhilosophical Transactions of the Royal Society B$gv. 373, n. 1760, 2018.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 4 | |
| 2. |  | KOEHLER, A. D.; DUSI, D. M. A.; ROSSI, M. L.; PACKER, R. M.; CARNEIRO, V. T. C.; MARTINELLI, A. P. Anatomical characterization of anther and pollen during development in vivo and in vitro of Brachiaria sp. In: SIMPÓSIO DE MICROSCOPIA NO CERRADO, 2008, Pirenópolis, GO. [Anais...] Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. 321 p. (Embrapa Recursos Genéticos e Biotecnologia, 265) Organizadoras: Ana Claudia Guerra de Araújo e Sônia Nair Báo. p. 72-74| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 3. | | KOEHLER, A. D.; DUSI, D. M. A.; ROSSI, M. L.; PACKER, R. M.; CARNEIRO, V. T. C.; MARTINELLI, A. P. Caracterização anatômica da antera e pólen durante o desenvolvimento in vivo e in vitro de Brachiaria SP. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. Resumo 006. p. 44.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 4. | | SOUZA, E. H.; SOUZA, F. V. D.; ROSSI, M. L.; PACKER, R. M.; CRUZ-BARROS, M. A. V.; MARTINELLI, A. P. Pollen morphology and viability in Bromeliaceae. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v.89, n.4, Oct./Dec. 2017. Epub Dec 07, 2017. Epub Dec 07, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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