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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
28/10/2011 |
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Data da última atualização: |
04/04/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, P. J. de O. PONTE de; RIBEIRO, A.; ROCHA, E. J. P. da; BOTELHO, M. do N.; SOUSA, A. M. L. de; SOUZA, E. B. de; FARIAS, J. R. B. |
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Afiliação: |
PAULO JORGE DE OLIVEIRA PONTE DE SOUZA; ARISTIDES RIBEIRO, UFV; EDSON JOSÉ PAULINO DA ROCHA, UNIVERSIDADE FEDERAL DO PARÁ; MARCEL DO NASCIMENTO BOTELHO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; ADRIANO MARLISOM LEÃO DE SOUSA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; EVERALDO BARREIROS DE SOUZA, UNIVERSIDADE FEDERAL DO PARÁ; JOSE RENATO BOUCAS FARIAS, CNPSO. |
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Título: |
Impacts of soyabean expansion on the Amazon energy balance: a case study. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Experimental Agriculture, v. 47, n. 3, p. 553-567, 2011. |
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DOI: |
10.1017/S0014479711000391 |
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Idioma: |
Inglês |
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Conteúdo: |
A micrometeorological experiment was carried out in an area of soyabean cultivation located in northeastern Para state, Brazil, in order to evaluate impacts on the local energy balance due to replacement of forests by soyabean. The meteorological data from forest ecosystems were collected in Caxiuanã forests located in central Para. The energy balance components were obtained using the Bowen ratio technique. Differences in energy balance components between ecosystems were significant during the soyabean growing season and more significant between growing seasons. During the soyabean growing season mean impacts of ?15%, ?9% and ?27% on net radiation, latent heat flux (LE) and sensible heat flux (H), respectively, were observed. At specific soyabean stages, LE was higher than in the forest because of the high soyabean surface conductance of water vapour.However, during the production off-season the impacts were more significant (p < 0.05), showing a reduction of 78% in LE and a substantial increase in H (84%) because of the absence of vegetation cover over this period. |
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Thesagro: |
Energia. |
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Thesaurus Nal: |
Energy. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01767naa a2200229 a 4500
001 1904383
005 2025-04-04
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1017/S0014479711000391$2DOI
100 1 $aSOUZA, P. J. de O. PONTE de
245 $aImpacts of soyabean expansion on the Amazon energy balance$ba case study.$h[electronic resource]
260 $c2011
520 $aA micrometeorological experiment was carried out in an area of soyabean cultivation located in northeastern Para state, Brazil, in order to evaluate impacts on the local energy balance due to replacement of forests by soyabean. The meteorological data from forest ecosystems were collected in Caxiuanã forests located in central Para. The energy balance components were obtained using the Bowen ratio technique. Differences in energy balance components between ecosystems were significant during the soyabean growing season and more significant between growing seasons. During the soyabean growing season mean impacts of ?15%, ?9% and ?27% on net radiation, latent heat flux (LE) and sensible heat flux (H), respectively, were observed. At specific soyabean stages, LE was higher than in the forest because of the high soyabean surface conductance of water vapour.However, during the production off-season the impacts were more significant (p < 0.05), showing a reduction of 78% in LE and a substantial increase in H (84%) because of the absence of vegetation cover over this period.
650 $aEnergy
650 $aEnergia
700 1 $aRIBEIRO, A.
700 1 $aROCHA, E. J. P. da
700 1 $aBOTELHO, M. do N.
700 1 $aSOUSA, A. M. L. de
700 1 $aSOUZA, E. B. de
700 1 $aFARIAS, J. R. B.
773 $tExperimental Agriculture$gv. 47, n. 3, p. 553-567, 2011.
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Embrapa Soja (CNPSO) |
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| 1. |  | BATISTA, T. A. C.; OLIVEIRA, M. do S. P. de; LOPES, C. R. P.; SANTOS, M. da G. F. dos. Avaliação de cachos em acessos de açaizeiro do tipo branco. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 26., 2023, Belém, PA. Anais [...]. Belém, PA: Embrapa Amazônia Oriental, 2024. p. 73-74. (Embrapa Amazônia Oriental. Eventos técnicos & científicos, 2).| Tipo: Resumo em Anais de Congresso |
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