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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: |
30/09/2014 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHRISTOFFERSEN, B. O.; RESTREPO-COUPE, N.; ARAIN, M. A.; BAKER, I. T.; CESTARO, B. P.; CIAIS, P.; FISHER, J. B.; GALBRAITH, D.; GUAN, X.; GULDEN, L.; HURK, B. van den; ICHII, K.; IMBUZEIRO, H.; JAIN, A.; LEVINE, N.; MIGUEZ-MACHO, G.; POULTER, B.; ROBERTI, D. R.; SAKAGUCHI, K.; SAHOO, A.; SCHAEFER, K.; SHI, M.; VERBEECK, H.; YANG, Z.-L.; ARAUJO, A. C.; KRUIJT, B.; MANZI, A. O.; ROCHA, H. R. da; RANDOW, C. von; MUZA, M. N.; BORAK, J.; COSTA, M. H.; GONÇALVES, L. G. G. de; ZENG, X.; SALESKA, S. R. |
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Afiliação: |
Bradley O. Christoffersen, University of Arizona; Natalia Restrepo-Coupe, University of Arizona / University of Technology, Sydney, Australia; M Altaf Arain, McMaster University; Ian T. Baker, Colorado State University; Bruno P. Cestaro, USP; Phillippe Ciais, LSCE CEA-CNRS-UVSQ, Orme des Merisiers; Joshua B. Fisher, California Institute of Technology; David Galbraith, University of Oxford / University of Leeds; Xiaodan Guan, The University of Texas at Austin; Lindsey Gulden, The University of Texas at Austin / ExxonMobil Upstream Research Company; Bart van den Hurk, Royal Netherlands Meteorological Institute (KNMI); Kazuhito Ichii, Fukushima University; Hewlley Imbuzeiro, UFV; Atul Jain, University of Illinois at Urbana-Champaign; Naomi Levine, Harvard University; Gonzalo Miguez-Macho, Universidade de Santiago de Compostela; Ben Poulter, Swiss Federal Research Institute WSL; Debora R. Roberti, UFSM; Koichi Sakaguchi, University of Arizona; Alok Sahoo, Center for Research on Environment and Water, IGES; Kevin Schaefer, University of Colorado at Boulder; Mingjie Shi, The University of Texas at Austin; Hans Verbeeck, Ghent University; Zong-Liang Yang, The University of Texas at Austin; ALESSANDRO CARIOCA DE ARAUJO, CPATU; Bart Kruijt, Wageningen University & Research Center; Antonio O. Manzi, INPA; Humberto R. da Rocha, USP; Celso von Randow, INPE; Michel N. Muza, University of Maryland, College Park, Hydrological Sciences Laboratory, NASA Goddard Space Flight Center; Jordan Borak, INPE; Marcos H. Costa, UFV; Luis Gustavo Gonçalves de Gonçalves, University of Maryland, College Park, Hydrological Sciences Laboratory, NASA Goddard Space Flight Center / INPE; Xubin Zeng, University of Arizona; Scott R. Saleska, University of Arizona. |
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Título: |
Mechanisms of water supply and vegetation demand govern the seasonality and magnitude of evapotranspiration in Amazonia and Cerrado. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 191, p. 33-50, June 2014. |
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DOI: |
10.1016/j.agrformet.2014.02.008 |
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Idioma: |
Inglês |
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Conteúdo: |
Evapotranspiration (E) in the Amazon connects forest function and regional climate via its role in precipitation recycling However, the mechanisms regulating water supply to vegetation and its demand for water remain poorly understood, especially during periods of seasonal water deficits In this study, we address two main questions: First, how do mechanisms of water supply (indicated by rooting depth and groundwater) and vegetation water demand (indicated by stomatal conductance and intrinsic water use efficiency) control evapotranspiration (E) along broad gradients of climate and vegetation from equatorial Amazonia to Cerrado, and second, how do these inferred mechanisms of supply and demand compare to those employed by a suite of ecosystem models? We used a network of eddy covariance towers in Brazil coupled with ancillary measurements to address these questions With respect to the magnitude and seasonality of E, models have much improved in equatorial tropical forests by eliminating most dry season water limitation, diverge in performance in transitional forests where seasonal water deficits are greater, and mostly capture the observed seasonal depressions in E at Cerrado However, many models depended universally on either deep roots or groundwater to mitigate dry season water deficits, the relative importance of which we found does not vary as a simple function of climate or vegetation In addition, canopy stomatal conductance (gs) regulates dry season vegetation demand for water at all except the wettest sites even as the seasonal cycle of E follows that of net radiation In contrast, some models simulated no seasonality in gs, even while matching the observed seasonal cycle of E. We suggest that canopy dynamics mediated by leaf phenology may play a significant role in such seasonality, a process poorly represented in models Model bias in gs and E, in turn, was related to biases arising from the simulated light response (gross primary productivity, GPP) or the intrinsic water use efficiency of photosynthesis (iWUE). We identified deficiencies in models which would not otherwise be apparent based on a simple comparison of simulated and observed rates of E. While some deficiencies can be remedied by parameter tuning, in most models they highlight the need for continued process development of belowground hydrology and in particular, the biological processes of root dynamics and leaf phenology, which via their controls on E, mediate vegetation-climate feedbacks in the tropics. MenosEvapotranspiration (E) in the Amazon connects forest function and regional climate via its role in precipitation recycling However, the mechanisms regulating water supply to vegetation and its demand for water remain poorly understood, especially during periods of seasonal water deficits In this study, we address two main questions: First, how do mechanisms of water supply (indicated by rooting depth and groundwater) and vegetation water demand (indicated by stomatal conductance and intrinsic water use efficiency) control evapotranspiration (E) along broad gradients of climate and vegetation from equatorial Amazonia to Cerrado, and second, how do these inferred mechanisms of supply and demand compare to those employed by a suite of ecosystem models? We used a network of eddy covariance towers in Brazil coupled with ancillary measurements to address these questions With respect to the magnitude and seasonality of E, models have much improved in equatorial tropical forests by eliminating most dry season water limitation, diverge in performance in transitional forests where seasonal water deficits are greater, and mostly capture the observed seasonal depressions in E at Cerrado However, many models depended universally on either deep roots or groundwater to mitigate dry season water deficits, the relative importance of which we found does not vary as a simple function of climate or vegetation In addition, canopy stomatal conductance (gs) regulates dry season vegetation demand f... Mostrar Tudo |
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Thesagro: |
Água; Cerrado; Evapotranspiração; Floresta Tropical. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
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001 1996137
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008 2014 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agrformet.2014.02.008$2DOI
100 1 $aCHRISTOFFERSEN, B. O.
245 $aMechanisms of water supply and vegetation demand govern the seasonality and magnitude of evapotranspiration in Amazonia and Cerrado.$h[electronic resource]
260 $c2014
520 $aEvapotranspiration (E) in the Amazon connects forest function and regional climate via its role in precipitation recycling However, the mechanisms regulating water supply to vegetation and its demand for water remain poorly understood, especially during periods of seasonal water deficits In this study, we address two main questions: First, how do mechanisms of water supply (indicated by rooting depth and groundwater) and vegetation water demand (indicated by stomatal conductance and intrinsic water use efficiency) control evapotranspiration (E) along broad gradients of climate and vegetation from equatorial Amazonia to Cerrado, and second, how do these inferred mechanisms of supply and demand compare to those employed by a suite of ecosystem models? We used a network of eddy covariance towers in Brazil coupled with ancillary measurements to address these questions With respect to the magnitude and seasonality of E, models have much improved in equatorial tropical forests by eliminating most dry season water limitation, diverge in performance in transitional forests where seasonal water deficits are greater, and mostly capture the observed seasonal depressions in E at Cerrado However, many models depended universally on either deep roots or groundwater to mitigate dry season water deficits, the relative importance of which we found does not vary as a simple function of climate or vegetation In addition, canopy stomatal conductance (gs) regulates dry season vegetation demand for water at all except the wettest sites even as the seasonal cycle of E follows that of net radiation In contrast, some models simulated no seasonality in gs, even while matching the observed seasonal cycle of E. We suggest that canopy dynamics mediated by leaf phenology may play a significant role in such seasonality, a process poorly represented in models Model bias in gs and E, in turn, was related to biases arising from the simulated light response (gross primary productivity, GPP) or the intrinsic water use efficiency of photosynthesis (iWUE). We identified deficiencies in models which would not otherwise be apparent based on a simple comparison of simulated and observed rates of E. While some deficiencies can be remedied by parameter tuning, in most models they highlight the need for continued process development of belowground hydrology and in particular, the biological processes of root dynamics and leaf phenology, which via their controls on E, mediate vegetation-climate feedbacks in the tropics.
650 $aAmazonia
650 $aÁgua
650 $aCerrado
650 $aEvapotranspiração
650 $aFloresta Tropical
700 1 $aRESTREPO-COUPE, N.
700 1 $aARAIN, M. A.
700 1 $aBAKER, I. T.
700 1 $aCESTARO, B. P.
700 1 $aCIAIS, P.
700 1 $aFISHER, J. B.
700 1 $aGALBRAITH, D.
700 1 $aGUAN, X.
700 1 $aGULDEN, L.
700 1 $aHURK, B. van den
700 1 $aICHII, K.
700 1 $aIMBUZEIRO, H.
700 1 $aJAIN, A.
700 1 $aLEVINE, N.
700 1 $aMIGUEZ-MACHO, G.
700 1 $aPOULTER, B.
700 1 $aROBERTI, D. R.
700 1 $aSAKAGUCHI, K.
700 1 $aSAHOO, A.
700 1 $aSCHAEFER, K.
700 1 $aSHI, M.
700 1 $aVERBEECK, H.
700 1 $aYANG, Z.-L.
700 1 $aARAUJO, A. C.
700 1 $aKRUIJT, B.
700 1 $aMANZI, A. O.
700 1 $aROCHA, H. R. da
700 1 $aRANDOW, C. von
700 1 $aMUZA, M. N.
700 1 $aBORAK, J.
700 1 $aCOSTA, M. H.
700 1 $aGONÇALVES, L. G. G. de
700 1 $aZENG, X.
700 1 $aSALESKA, S. R.
773 $tAgricultural and Forest Meteorology$gv. 191, p. 33-50, June 2014.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
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| Registros recuperados : 17 | |
| 2. |  | CUNICO, M. M.; AUER, C. G.; CUNICO, M. W. M.; MIGUEL, O. G.; PERALTA-ZAMORA, P. A.; SANQUETTA, C. R. Avaliação do real potencial inibidor de extratos etanólicos de Ottonia martiana sobre Cylindrocladium spathulatum e Botrytis cinerea. Floresta, Curitiba, v. 43, n. 2, p. 225-230, abr./jun. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Florestas. |
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| 3. | | CUNICO, M. M.; MIGUEL, O. G.; KERBER, V. S.; MONTRUCCHIO, D. P.; AUER, C. G.; GRIGOLETTI JÚNIOR, A. Avaliação da atividade antibacteriana de Ottonia martiana Miq., Piperaceae. Revista de Ciências Farmacêuticas, Araraquara, v. 24, n. 2, p. 141-145, 2003.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Florestas. |
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| 4. | | CUNICO, M. M.; MIGUEL, M. D.; CARVALHO, J. L. S.; PEITZ, C.; AUER, C. G.; GRIGOLETTI JÚNIOR, A. Estudo da atividade antifúngica de Ottonia martiana Miq., Piperaceae: um teste in vivo. Visão Acadêmica, Curitiba, v. 4, n. 2, p. 77-82, jul./dez. 2003.| Biblioteca(s): Embrapa Florestas. |
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| 5. | | CUNICO, M. M; AUER, C. G.; CÔCCO, L. C.; YAMAMOTO, C. I.; MIGUEL, M. D.; MIGUEL, O. G.; SANQUETTA, C. R. Avaliação do extrato etanólico de Ottonia martiana Miq. para o controle de duas doenças florestais. Revista Brasileira de Plantas Medicinais, Botucatu, v. 14, n. 3, p. 464-469, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 6. | | CUNICO, M. M.; CARVALHO, J. L. S.; SILVA, V. C.; MONTRUCCHIO, D. P.; KERBER, V. A.; GRIGOLETTI JÚNIOR, A.; AUER, C. G.; MIGUEL, M. D. Avaliação antifúngica de extratos obtidos de Ottonia martiana Miq. (Piperaceae) sobre três fitopatógenos. In: EUNIÃO ANUAL DO INSTITUTO BIOLÓGICO, 17., CONGRESSO DE INICIAÇÃO CIENTÍFICA EM CIÊNCIAS AGRÁRIAS, BIOLÓGICAS E AMBIENTAIS, 2., 2004, São paulo. Resumos expandidos. São Paulo: Instituto Biológico, 2004. 1 CD-ROM. 17ª RAIB.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 7. | | CUNICO, M. M.; CIRIO, G. M.; MIGUEL, O. G.; MIGUEL, D. M.; MONTRUCCHIO, D. P.; AUER, C. G.; GRIGOLETTI JUNIOR, A. Contribuição ao estudo da atividade antifúngica de Maytenus ilicifolia Mart. ex Reiss., Celastraceae. Revista Brasileira de Farmacognosia, v. 12, n. 2, p. 69-73, jul./dez. 2003.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Florestas. |
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| 8. | | CUNICO, M. M.; CARVALHO, J. L. S.; ANDRADE, C. A.; MIGUEL, O. G.; MIGUEL, M. D.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; CÔCCO, L. C.; YAMAMOTO, C. I. Atividade antifúngica de extratos brutos de Ottonia martiana Miq., Piperaceae. Visão Acadêmica, Curitiba, v.7, n. 2, p. 53-60, jul./dez. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Florestas. |
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| 9. | | CUNICO, M. M.; ANDRADE, C. A.; MIGUEL, O. G.; MIGUEL, M. D.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; CÔCCO, L. C.; YAMAMOTO, C. I. Atividade antifúngica in vivo do extrato bruto da Lobelia langeana Dusén, Campanelaceae, frente a um patógeno da erva-mate (Ilex paraguariensis St. Hil.). Visão Acadêmica, Curitiba, v.7, n. 2, p. 33-36, jul./dez. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Florestas. |
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| 10. | | CUNICO, M. M.; VIEIRA, G.; LIMA, C. P. de; CÔCCO, L. C.; YAMAMOTO, C. I.; AUER, C. G.; PEITZ, C.; SANQUETTA, C. R. Estudo preliminar antimicrobiano e fitoquímico do óleo essencial foliar da Nectandra grandiflora Ness (canela-amarela). In: ENCONTRO DE QUÍMICA DA REGIÃO SUL, 18., 2010, Curitiba. Química: contribuições para o futuro. Curitiba: SBQ, 2010. 1 CD-ROM. SBQ SUL.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 11. | | CUNICO, M. M.; AUER, C. G.; LIMA, C. P. de; CÔCCO, L. C.; YAMAMOTO, C. I.; MIGUEL, M. D.; MIGUEL, O. G.; SANQUETTA, C. R. Bioautography to assess antibacterial activity of Ottonia martiana Miq. (Piperaceae) on the human oral microbiota. Revista de Ciências Farmacêuticas Básica e Aplicada, v. 33, n. 4, p. 515-519, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 12. | | CUNICO, M. M.; MONTRUCHIO, D. P.; CARVALHO, J. L. S.; MIGUEL, O. G.; MIGUEL, M. D.; KERBER, V. A; TOMAZ, R.; AUER, C. G.; GRIGOLETTI JÚNIOR, A. Estudo da atividade antifúngica da Ottonia martiana Miq., Piperaceae. In: SIMPÓSIO DE PLANTAS MEDICINAIS DO BRASIL, 17., 2002. Cuiabá. [Anais]. [S.l.]: UFMT, 2002. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 13. | | CUNICO, M. M.; CARVALHO, J. L. S.; AUER, C. G.; GRIGOLETTI JUNIOR, A.; DELLE MONACHE, F.; KERBER, V. A.; MIGUEL, M. D.; MIGUEL, O. G. Genêro Ottonia: uma revisão das principais características botânicas, fitoquímicas e biológicas. Revista Brasileira de Plantas Medicinais, Botucatu, v. 7, n. 2, p. 17-21, fev. 2005.| Biblioteca(s): Embrapa Florestas. |
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| 14. | | CUNICO, M. M.; TREBIEN, H. A.; GALETTI, F. C.; MIGUEL, O. G.; MIGUEL, M. D.; AUER, C. G.; SILVA, C. L.; SOUZA, A. O. de. Investigation of local anesthetic and antimycobacterial activity of Ottonia martiana Miq. (Piperaceae). Anais da Academia Brasileira de Ciências, v. 87, n. 4, p. 1991-2000, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 15. | | CUNICO, M. M.; LOPES, A. R.; CÔCCO, L. C.; YAMAMOTO, C. I.; PLOCHARSKI, R. C. B.; MIGUEL, M. D.; GRIGOLLETI JUNIOR, A.; AUER, C. G.; MIGUEL, O. G. Phytochemical and antibacterial evaluation of essential oils from Ottonia martiana Miq. (Piperaceae). Journal of the Brazilian Chemical Society, v. 18, n. 1, p. 184-188, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Embrapa Florestas. |
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| 16. | | LIMA, C. P. de; CUNICO, M. M.; AUER, C. G.; MIGUEL, O. G.; MIGUEL, M. D.; SILVA, C. B. da; ANDRADE, C. A.; KERBER, V. A. Potencial alelopático e antifúngico do extrato das folhas de Acacia longifolia (Andr.) Willd. Visão Acadêmica, Curitiba, v. 14, n. 4, p. 16-25, out./dez. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Florestas. |
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| 17. | | DIAS, J. F. G.; VIRTUOSO, S.; DAVET, A.; CUNICO, M. M.; MIGUEL, M. D.; MIGUEL, O. G.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; OLIVEIRA, A. B.; FERRONATO, M. L. Atividade antibacteriana e antifúngica de extratos etanólicos de Aster lanceolatus Willd., Asteraceae. Revista Brasileira de Farmacognosia, João Pessoa, v. 16, n. 1, p. 83-87, jan./mar. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 17 | |
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