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15. | | ARAUJO, A. C. de; RANDOW, C. von; RESTREPO-COUPE, N. Ecosystem-atmosphere exchanges of CO2 in dense and open 'terra firme' rainforests in Brazilian Amazonia. In: NAGY, L.; FORSBERG, B. R.; ARTAXO, P. (Ed.). Interactions between biosphere, atmosphere and human land use in the Amazon basin. [S.l.]: Springer, 2016. Cap. 8, p. 149-169. (Ecological Studies, 227). Biblioteca(s): Embrapa Amazônia Oriental. |
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16. | | ARAUJO, A. C. de; SÁ, T. D. de A.; FRAZÃO, R. R.; SOMMER, R. Aplicação de técnicas de estatística descritiva à análise da precipitação sob dossel em vegetação secundária jovem no nordeste do Pará. In: SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA FCAP, 7.; SEMINÁRIO DE INICIAÇÃO CIENTIFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 1., 1997, Belém, PA. Resumos. Belém, PA: FCAP, 1997. p. 98. Biblioteca(s): Embrapa Amazônia Oriental. |
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17. | | ARAUJO, A. C. de; COIMBRA, H. M.; MOLLER, M. R. F.; SÁ, T. D. de A. Aspectos térmicos do solo em sistemas rotacionais de agricultura no nordeste do Pará. In: CONGRESSO BRASILEIRO DE INICIAÇÃO CIENTÍFICA EM CIÊNCIAS AGRÁRIAS, 16., 1996, Santa Maria, RS. Os desafios da iniciação científica para o desenvolvimento social, frente à globalização: resumos. Santa Maria: UFSM, 1997. p. 209. Biblioteca(s): Embrapa Amazônia Oriental. |
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19. | | ARAÚJO, A. C. de; OLIVEIRA, V. C. de; SÁ, T. D. de A.; BRIENZA JUNIOR, S. Aspecto biofísico de vegetação secundária enriquecida com leguminosas de rápido crescimento no nordeste do Pará: composição espectral da luz. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA PARA O PROGRESSO DA CIÊNCIA, 49., 1997, Belo Horizonte, MG. Anais... Belo Horizonte: SBPC: UFMG, 1997. v. 2, p. 3-4. Biblioteca(s): Embrapa Amazônia Oriental. |
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Registros recuperados : 101 | |
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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
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
21/06/2001 |
Data da última atualização: |
06/12/2022 |
Autoria: |
SÁ, T. D. de A.; OLIVEIRA, V. C. de; ARAUJO, A. C. de; BRIENZA JUNIOR, S. |
Afiliação: |
TATIANA DEANE DE ABREU SA, CPATU; CPATU/CNPQ; ALESSANDRO CARIOCA DE ARAUJO, BOLSISTA CPATU / CNPQ / FCAP; SILVIO BRIENZA JUNIOR, CPATU. |
Título: |
Spectral irradiance and stomatal conductance of enriched fallows with fast-growing trees in eastern Amazonia, Brazil. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Agroforestry Systems, v. 47, n. 1, p. 289-303, 1999. |
Descrição Física: |
il. |
DOI: |
10.1023/A:1006240102207 |
Idioma: |
Inglês |
Conteúdo: |
The biomass production of both indigenous and introduced plant species in tropical fallow systems depends on the degree to which these species can acclimate to the light and water environments. Results for light spectral composition monitoring within the canopy of enriched fallows and for the leaf stomatal conductance of fast-growing leguminous trees and indigenous fallow species are presented. All measurements were made in a smallholder farm in Igarapé-Açu, northeastern Pará State, Brazil. Light spectral composition (330 to 1100 nm) was monitored at two heights (ground level and 1 m) in a six-year-old natural fallow, 1.5-year-old natural fallow, and 1.5-year-old fallows enriched with Acacia angustissima, Acacia mangium, Clitoria racemosa, Inga edulis, Sclerolobium paniculatum, and a mixture of these trees. Light-quality parameters including photosynthetically active radiation, phytochrome active radiation, and blue active radiation changed most drastically in the stands enriched with A. mangium. Stomatal conductance was higher for A. mangium than the other trees and four common indigenous fallow vegetation species (Phenakospermum guyannense, Davilla rugosa, Lacistema pubescens, and Myrcia bracteata). Results suggest that the enrichment of fallows with A. mangium may promote changes in light and water vapor exchange regimes, with potential effects on species diversity in fallows. |
Thesagro: |
Cultivo Migratório; Disponibilidade de Nutriente; Fixação de Nitrogênio; Pousio; Radiação Solar. |
Thesaurus NAL: |
fallow; nitrogen fixation; nutrient availability; shifting cultivation; solar radiation. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02334naa a2200301 a 4500 001 1400485 005 2022-12-06 008 1999 bl uuuu u00u1 u #d 024 7 $a10.1023/A:1006240102207$2DOI 100 1 $aSÁ, T. D. de A. 245 $aSpectral irradiance and stomatal conductance of enriched fallows with fast-growing trees in eastern Amazonia, Brazil.$h[electronic resource] 260 $c1999 300 $cil. 520 $aThe biomass production of both indigenous and introduced plant species in tropical fallow systems depends on the degree to which these species can acclimate to the light and water environments. Results for light spectral composition monitoring within the canopy of enriched fallows and for the leaf stomatal conductance of fast-growing leguminous trees and indigenous fallow species are presented. All measurements were made in a smallholder farm in Igarapé-Açu, northeastern Pará State, Brazil. Light spectral composition (330 to 1100 nm) was monitored at two heights (ground level and 1 m) in a six-year-old natural fallow, 1.5-year-old natural fallow, and 1.5-year-old fallows enriched with Acacia angustissima, Acacia mangium, Clitoria racemosa, Inga edulis, Sclerolobium paniculatum, and a mixture of these trees. Light-quality parameters including photosynthetically active radiation, phytochrome active radiation, and blue active radiation changed most drastically in the stands enriched with A. mangium. Stomatal conductance was higher for A. mangium than the other trees and four common indigenous fallow vegetation species (Phenakospermum guyannense, Davilla rugosa, Lacistema pubescens, and Myrcia bracteata). Results suggest that the enrichment of fallows with A. mangium may promote changes in light and water vapor exchange regimes, with potential effects on species diversity in fallows. 650 $afallow 650 $anitrogen fixation 650 $anutrient availability 650 $ashifting cultivation 650 $asolar radiation 650 $aCultivo Migratório 650 $aDisponibilidade de Nutriente 650 $aFixação de Nitrogênio 650 $aPousio 650 $aRadiação Solar 700 1 $aOLIVEIRA, V. C. de 700 1 $aARAUJO, A. C. de 700 1 $aBRIENZA JUNIOR, S. 773 $tAgroforestry Systems$gv. 47, n. 1, p. 289-303, 1999.
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