| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
16/02/2009 |
|
Data da última atualização: |
15/01/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
RIGHI, E. Z.; ANGELOCCI, L. R.; MARIN, F. R. |
|
Afiliação: |
EVANDRO ZANINI RIGHI, PUC-PR; LUIZ ROBERTO ANGELOCCI, Esalq/USP; FABIO RICARDO MARIN, CNPTIA. |
|
Título: |
Energy balance of a young drip-irrigated coffee crop in southeast Brazil: an analysis of errors and reliability of measurements by the Bowen ratio method. |
|
Ano de publicação: |
2007 |
|
Fonte/Imprenta: |
Revista Brasileira de Agrometeorologia, Piracicaba, v. 15, n. 3, p. 267-279, 2007. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The energy balance of a young (one to two year-old), drip irrigated coffee crop in hedgerows configuration was determined using the energy balance-Bowen ratio (EBBR) method, during two periods in the wet season [October?Dezember/2002 (P1) and February?March/2003 (P2)] and two in the dry season [May?July/2003 (P3) and August?September/2003 (P4)], in Piracicaba, São Paulo State, Brazil. An analysis of errors affecting the estimates of latent and sensible heat fluxes was performed. Emphasis was given on determining the reliability of the assumption that Kh=Kw in the EBBR method, in view of the possibility of occurrence of sensible heat advection (regional and or within-row) and on the effect of errors of measurements of the air temperature and vapor pressure through the use of thermocouple psychrometers. The psychrometric errors had a more prevalent effect in the dry periods when the humidity gradients were lower than during the humid periods, leading to a larger discarding of measurement during P3 and P4. In the wet periods, it was deduced that the assumption of Kh=Kw did not introduce a large effect on the estimates of the heat fluxes, but during the dry periods this similarity could not be assumed as a function of advective fluxes. The soil surface water conditions were the main factor that determined the energy partitioning. The latent heat flux represented more than 80% of the available energy (Rn?G) in the wet season, decreasing to 78% in P3 and 64% in P4, the dry periods. However, values obtained during P4 were affected by problems on management of the coffee crop. Weeds growing in the inter-rows affected the energy partitioning mostly during periods with low rainfall. The effect of coffee growth and the weeds on the latent heat flux was masked by the soil humidity inside each studied period. In the early dry period, the effect of inter-row weeds on the latent heat flux was important, because they could have extracted water from deep depths in the soil. MenosThe energy balance of a young (one to two year-old), drip irrigated coffee crop in hedgerows configuration was determined using the energy balance-Bowen ratio (EBBR) method, during two periods in the wet season [October?Dezember/2002 (P1) and February?March/2003 (P2)] and two in the dry season [May?July/2003 (P3) and August?September/2003 (P4)], in Piracicaba, São Paulo State, Brazil. An analysis of errors affecting the estimates of latent and sensible heat fluxes was performed. Emphasis was given on determining the reliability of the assumption that Kh=Kw in the EBBR method, in view of the possibility of occurrence of sensible heat advection (regional and or within-row) and on the effect of errors of measurements of the air temperature and vapor pressure through the use of thermocouple psychrometers. The psychrometric errors had a more prevalent effect in the dry periods when the humidity gradients were lower than during the humid periods, leading to a larger discarding of measurement during P3 and P4. In the wet periods, it was deduced that the assumption of Kh=Kw did not introduce a large effect on the estimates of the heat fluxes, but during the dry periods this similarity could not be assumed as a function of advective fluxes. The soil surface water conditions were the main factor that determined the energy partitioning. The latent heat flux represented more than 80% of the available energy (Rn?G) in the wet season, decreasing to 78% in P3 and 64% in P4, the dry periods... Mostrar Tudo |
|
Palavras-Chave: |
Advecção; Calor sensível; Erros de medidas; Fluxo de energia latente; Psicrometria; Psychrometry. |
|
Thesagro: |
Balanço de energia; Café; Clima; Irrigação. |
|
Thesaurus Nal: |
advection. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 02861naa a2200277 a 4500
001 1024586
005 2020-01-15
008 2007 bl uuuu u00u1 u #d
100 1 $aRIGHI, E. Z.
245 $aEnergy balance of a young drip-irrigated coffee crop in southeast Brazil$ban analysis of errors and reliability of measurements by the Bowen ratio method.$h[electronic resource]
260 $c2007
520 $aThe energy balance of a young (one to two year-old), drip irrigated coffee crop in hedgerows configuration was determined using the energy balance-Bowen ratio (EBBR) method, during two periods in the wet season [October?Dezember/2002 (P1) and February?March/2003 (P2)] and two in the dry season [May?July/2003 (P3) and August?September/2003 (P4)], in Piracicaba, São Paulo State, Brazil. An analysis of errors affecting the estimates of latent and sensible heat fluxes was performed. Emphasis was given on determining the reliability of the assumption that Kh=Kw in the EBBR method, in view of the possibility of occurrence of sensible heat advection (regional and or within-row) and on the effect of errors of measurements of the air temperature and vapor pressure through the use of thermocouple psychrometers. The psychrometric errors had a more prevalent effect in the dry periods when the humidity gradients were lower than during the humid periods, leading to a larger discarding of measurement during P3 and P4. In the wet periods, it was deduced that the assumption of Kh=Kw did not introduce a large effect on the estimates of the heat fluxes, but during the dry periods this similarity could not be assumed as a function of advective fluxes. The soil surface water conditions were the main factor that determined the energy partitioning. The latent heat flux represented more than 80% of the available energy (Rn?G) in the wet season, decreasing to 78% in P3 and 64% in P4, the dry periods. However, values obtained during P4 were affected by problems on management of the coffee crop. Weeds growing in the inter-rows affected the energy partitioning mostly during periods with low rainfall. The effect of coffee growth and the weeds on the latent heat flux was masked by the soil humidity inside each studied period. In the early dry period, the effect of inter-row weeds on the latent heat flux was important, because they could have extracted water from deep depths in the soil.
650 $aadvection
650 $aBalanço de energia
650 $aCafé
650 $aClima
650 $aIrrigação
653 $aAdvecção
653 $aCalor sensível
653 $aErros de medidas
653 $aFluxo de energia latente
653 $aPsicrometria
653 $aPsychrometry
700 1 $aANGELOCCI, L. R.
700 1 $aMARIN, F. R.
773 $tRevista Brasileira de Agrometeorologia, Piracicaba$gv. 15, n. 3, p. 267-279, 2007.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 23 | |
| 5. |  | ROLEMBERG, K. F.; GÓES, J. M. de; FERNANDES-GÓES, L. C. Heteroquelia em Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ocypodidae) na Área de Proteção Ambiental (APA) do Delta do Parnaiba. In: SIMPÓSIO SOBRE A SUSTENTABILIDADE DA PESCA DO CARANGUEJO-UÇÁ, 1., 2004, Parnaíba. Resumos e Palestras. Parnaíba: UESPI, 2004.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
|    |
| 6. | | ROLEMBERG, K. F.; GÓES, J. M. de; FERNANDES-GÓES, L. C. Heteroquelia em Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ocypodidae) na Área de Proteção Ambiental (APA) do Delta do Parnaiba. In: ENCONTRO DE INICIAÇÃO CIENTIFICA, 1.; PRÊMIO DE INICIAÇÃO CIENTIFICA DA FAPEPI, 1., 2005, [Teresina]. Anais...[Teresina]: FAPEPI, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 7. | | LINHARES, J. C. S.; FERNANDES-GÓES, L. C.; GÓES, J. M. de. Considerações a respeito do tamanho da maturação em Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ocypodidae) na Área de Proteçao Ambiental (APA) do Delta do Parnaíba. In: ENCONTRO DE INICIAÇÃO CIENTIFICA, 1.; PRÊMIO DE INICIAÇÃO CIENTIFICA DA FAPEPI, 1., 2005, [Teresina]. Anais...[Teresina]: FAPEPI, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 8. | | LINHARES, J. C. S.; FERNANDES-GÓES, L. C.; GÓES, J. M. de. Considerações a respeito do tamanho da primeira maturação em (linnaeus, 1763) (crustácea, brachyura, ocypodidae) na área de proteção ambiental (APA) delta do Parnaíba. In: SIMPÓSIO SOBRE A SUSTENTABILIDADE DA PESCA DO CARANGUEJO-UÇÁ, 1., 2004, Parnaíba. Resumos e Palestras. Parnaíba: UESPI, 2004.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 9. | | GÓES, J. M.; FERNANDES-GÓES, L. C.; LEGAT, J. F. A.; SOUZA, L. O. Nova ocorrência do caranguejo Pilumnus spinosissimus Rathbun, 1898 (Crustacea, Brachyura, Xanthidae) para o litoral do Estado do Piauí, Brasil. In: CONGRESSO BRASILEIRO DE OCEANOGRAFIA, 3.; CONGRESSO IBERO-AMERICANO DE OCEANOGRAFIA, 1., 2008, Fortaleza. Anais... Fortaleza: Associação Brasileira de Oceanografia, 2008. 3 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 14. | | LEAL, L. K. A. M.; PIERDONÁ, T. M.; GÓES, J. G. S.; CANUTO, K. M.; SILVEIRA, E. R.; BEZERRA, A. M. E.; VIANA, G. S. B. A comparative chemical and pharmacological study of standardized extracts and vanillic acid from wild and cultivated Amburana cearensis A. C. Smith. Phytomedicine, v. 18, n. 2-3, p. 230-233, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
| |
| 15. | | SILVA, T. F. A.; LEGAT, J. F. A.; SOUZA, L. I.; FRANÇA, F. C. D.; GÓES, J. M.; FERNANDES-GÓES, L. C. Desenvolvimento gonadal do caranguejo-uçá, Ucides cordatus (Decapoda: Ucididae), capturado na Ilha das Canárias, MA. In: CONGRESSO BRASILEIRO SOBRE CRUSTÁCEOS, 6., 2010, Ilhéus. Programa e resumos... Ilhéus: Editus, 2010. Ref. 97.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 16. | | VELOSO, C. A. C.; GÓES, J. E. M.; EL-HUSNY, J. C.; MENDEZ, J. R.; TENORIO, A. R. de M.; PEREIRA, W. L. M. Efeito do fósforo na produção de matéria seca em três cultivares de soja (Glycine max (L.) Merril. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 23.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 7.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 5.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 2., 1998, Caxambu. Interrelação fertilidade, biologia do solo e nutrição de plantas: consolidando um paradigma: resumos. Lavras: UFLA: SBCS: SBM, 1998. p. 686. FertBIO 98.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| 17. | | LEGAT, J. F. A.; LEGAT, A. P.; CASTRO, P. F.; PEREIRA, A. M. L.; GOES, J. M.; FERNANDES-GOES, L. C. Current status of ucides cordatus (linnaeus, 1763) (crustácea, ocypodidae) fishery in the Parnaíba delta region, Brazil. In: BRAZILIAN CRUSTACEAN CONGRESS & THE CRUSTACEAM SOCIETY MEETING, 3. 2004, Florianópolis, SC. Program and Abstracts. Florianópolis: SBC, 2004. p. 123.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 18. | | LEGAT, J. F. A.; SILVA, T. F. A.; FRANÇA, F. C. D.; RODRIGUES, L. A.; GÓES, J. M.; FERNANDES-GÓES, L. C.; LEGAT, A. P. Período de ecdise de Ucides cordatus (Brachyura: ucididae) na área de proteção ambiental Delta do Rio Parnaíba. In: CONGRESSO BRASILEIRO SOBRE CRUSTÁCEOS, 6., 2010, Ilhéus. Programa e resumos... Ilhéus: Editus, 2010. p. 239.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 20. | | TENÓRIO, A. R. M.; GRAÇA, J. J. da C.; GOÉS, J. E. de M.; MENDEZ, J. G. R.; GAMA, J. R. N. F.; SILVA, P. R. O. da; CHAGAS, P. S. M.; AMÉRICO, R. R.; PEREIRA, W. L. M.; PINTO, W. da S.; MENDEZ, J. G. R.; GOÉS, J. E. de M. Mapa de solos da Fazenda Escola Experimental de Igarapé-Açu. [Belém, PA]: FCAP, 1997. 1 Mapa, color, 72 cm x 82 cm, escala 1:3000.| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| Registros recuperados : 23 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
