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2. | | LANZA, T. C. L.; LACERDA, M. P. C.; MOTTA, P. E. F.; CARVALHO, J. G. de. Crescimento inicial do parica (Schizolobium amazonicum) afetado pela omissao de macronutrientes, em solucao nutritiva. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 22., 1996, Manaus, AM. Resumos expandidos... Manaus: Universidade do Amazonas, 1996. p.363-364. Biblioteca(s): Embrapa Solos. |
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3. | | LANZA, T. C. L.; MOTTA, P. E. F.; LACERDA, M. P. C.; CARVALHO, J. G. de. Crescimento inicial do parica (Schizolobium amazonicum) afetado pela omissao de micronutrientes, em solucao nutritiva. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 22., 1996, Manaus, AM. Resumos expandidos... Manaus: Universidade do Amazonas, 1996. p.365-366. Biblioteca(s): Embrapa Solos. |
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4. | | LACERDA, M. P. C.; MOTTA, P. E. F.; LANZA, T. C. L.; CARVALHO, J. G. Avaliacao dos teores de Ca, Mg e S em parica (Schizolobium amazonicum) em tratamentos em solucao nutritiva com omissao de macro e micronutrientes. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 22., 1996, Manaus,AM. Resumos expandidos... Manaus: Universidade do Amazonas, 1996. p.359-360. Biblioteca(s): Embrapa Solos. |
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5. | | LACERDA, M. P. C.; LANZA, T. C. L.; MOTTA, P. E. F.; CARVALHO, J. G. Avaliacao dos teores de N, P e K em parica (Schizolobium amazonicum) em tratamentos em solucao nutritiva com omissao de macro e micronutrientes. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 22., 1996, Manaus,AM. Resumos expandidos... Manaus: Universidade do Amazonas, 1996. p.361-362. Biblioteca(s): Embrapa Solos. |
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11. | | MOTTA, P. E. F.; LACERDA, M. P. C.; LANZA, T. C. L.; CARVALHO, J. G. Efeito da deficiencia de macro e micronutrientes sobre o teor de boro, cobre e ferro em parica (Schilozobium amazonicum). In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 22., 1996, Manaus,AM. Resumos expandidos... Manaus: Universidade do Amazonas, 1996. p.383-384. Biblioteca(s): Embrapa Solos. |
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17. | | LACERDA, M. P. C.; QUÉMÉNEUR, J. J. G.; ANDRADE, H.; ALVES, H. M. R.; VIEIRA, T. G. C. Mapeamento preliminar de solos com horizonte B e textural E B nítico na região de Lavras, MG. In.: CIÊNCIA E AGROTECNOLOGIA, Lavras, v. 33, n. 3, p. 788-785, mai/jun. 2009. Biblioteca(s): Embrapa Café; Embrapa Unidades Centrais. |
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19. | | MACHADO, M. L.; ALVES, H. M. R.; VIEIRA, T. G. C.; LACERDA, M. P. C.; ANDRADE, H.; FERNANDES FILHO, E. Caracterização de agroecossistemas cafeeiros da Zona da Mata de Minas Gerais utilizando o Sistema de Processamento de Informações georreferenciadas (SPRING) In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 3., 2003, Porto Seguro. Resumos... Brasília, DF: Embrapa Café, 2003. Biblioteca(s): Embrapa Café. |
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Registros recuperados : 44 | |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
23/07/2018 |
Data da última atualização: |
23/07/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ALBERT, L. P.; WU, J.; PROHASKA, N.; CAMARGO, P. B. de; HUXMAN, T. E.; TRIBUZY, E. S.; IVANOV, V. Y.; OLIVEIRA, R. S.; GARCIA, S.; SMITH, M. N.; OLIVEIRA JUNIOR, R. C. de; RESTREPO-COUPE, N.; SILVA, R. da; STARK, S. C.; MARTINS, G. A.; PENHA, D. V.; SALESKA, S. R. |
Afiliação: |
Loren P. Albert, University of Arizona / Brown University; Jin Wu, University of Arizona / Brookhaven National Laboratory; Neill Prohaska, University of Arizona; Plinio Barbosa de Camargo, CENA/USP; Travis E. Huxman, University of California; Edgard S. Tribuzy, UFOPA; Valeriy Y. Ivanov, University of Michigan; Rafael S. Oliveira, UNICAMP; Sabrina Garcia, INPA; Marielle N. Smith, University of Arizona / Michigan State University; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Natalia Restrepo-Coupe, University of Technology Sydney; Rodrigo da Silva, UFOPA; Scott C. Stark, Michigan State University; Giordane A. Martins, INPA; Deliane V. Penha, UFOPA; Scott R. Saleska, University of Arizona. |
Título: |
Age-dependent leaf physiology and consequences for crown-scale carbon uptake during the dry season in an Amazon evergreen forest. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
New Phytologist, v. 219, n. 3, p. 870-884, Aug. 2018. |
DOI: |
10.1111/nph.15056 |
Idioma: |
Inglês |
Conteúdo: |
Satellite and tower-based metrics of forest-scale photosynthesis generally increase with dry season progression across central Amazônia, but the underlying mechanisms lack consensus. We conducted demographic surveys of leaf age composition, and measured the age dependence of leaf physiology in broadleaf canopy trees of abundant species at a central eastern Amazon site. Using a novel leaf-to-branch scaling approach, we used these data to independently test the much-debated hypothesis ? arising from satellite and towe-based observations ? that leaf phenology could explain the forest-scale pattern of dry season photosynthesis. Stomatal conductance and biochemical parameters of photosynthesis were higher for recently mature leaves than for old leaves. Most branches had multiple leaf age categories simultaneously present, and the number of recently mature leaves increased as the dry season progressed because old leaves were exchanged for new leaves. These findings provide the first direct field evidence that branch-scale photosynthetic capacity increases during the dry season, with a magnitude consistent with increases in ecosystem-scale photosynthetic capacity derived from flux towers. Interactions between leaf age-dependent physiology and shifting leaf age-demographic composition are sufficient to explain the dry season photosynthetic capacity pattern at this site, and should be considered in vegetation models of tropical evergreen forests. |
Thesagro: |
Desmatamento; Fenologia; Floresta Tropical; Fotossíntese; Seca. |
Thesaurus NAL: |
Amazonia; Drought; Ontogeny; Photosynthesis; Tropical forests. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02699naa a2200445 a 4500 001 2093465 005 2018-07-23 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1111/nph.15056$2DOI 100 1 $aALBERT, L. P. 245 $aAge-dependent leaf physiology and consequences for crown-scale carbon uptake during the dry season in an Amazon evergreen forest.$h[electronic resource] 260 $c2018 520 $aSatellite and tower-based metrics of forest-scale photosynthesis generally increase with dry season progression across central Amazônia, but the underlying mechanisms lack consensus. We conducted demographic surveys of leaf age composition, and measured the age dependence of leaf physiology in broadleaf canopy trees of abundant species at a central eastern Amazon site. Using a novel leaf-to-branch scaling approach, we used these data to independently test the much-debated hypothesis ? arising from satellite and towe-based observations ? that leaf phenology could explain the forest-scale pattern of dry season photosynthesis. Stomatal conductance and biochemical parameters of photosynthesis were higher for recently mature leaves than for old leaves. Most branches had multiple leaf age categories simultaneously present, and the number of recently mature leaves increased as the dry season progressed because old leaves were exchanged for new leaves. These findings provide the first direct field evidence that branch-scale photosynthetic capacity increases during the dry season, with a magnitude consistent with increases in ecosystem-scale photosynthetic capacity derived from flux towers. Interactions between leaf age-dependent physiology and shifting leaf age-demographic composition are sufficient to explain the dry season photosynthetic capacity pattern at this site, and should be considered in vegetation models of tropical evergreen forests. 650 $aAmazonia 650 $aDrought 650 $aOntogeny 650 $aPhotosynthesis 650 $aTropical forests 650 $aDesmatamento 650 $aFenologia 650 $aFloresta Tropical 650 $aFotossíntese 650 $aSeca 700 1 $aWU, J. 700 1 $aPROHASKA, N. 700 1 $aCAMARGO, P. B. de 700 1 $aHUXMAN, T. E. 700 1 $aTRIBUZY, E. S. 700 1 $aIVANOV, V. Y. 700 1 $aOLIVEIRA, R. S. 700 1 $aGARCIA, S. 700 1 $aSMITH, M. N. 700 1 $aOLIVEIRA JUNIOR, R. C. de 700 1 $aRESTREPO-COUPE, N. 700 1 $aSILVA, R. da 700 1 $aSTARK, S. C. 700 1 $aMARTINS, G. A. 700 1 $aPENHA, D. V. 700 1 $aSALESKA, S. R. 773 $tNew Phytologist$gv. 219, n. 3, p. 870-884, Aug. 2018.
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