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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
17/08/2006 |
Data da última atualização: |
29/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOMMER, R.; SÁ, T. D. de A.; VIELHAUER, K.; ARAÚJO, A. C. de; FÖLSTER, H.; VLEK, P. L. G. |
Afiliação: |
ROLF SOMMER, University of Bonn; TATIANA DEANE DE ABREU SA, CPATU; KONRAD VIELHAUER, University of Bonn; ALESSANDRO CARIOCA DE ARAÚJO, INPA; HORST FÖLSTER, University of Göttingen; University of Bonn. |
Título: |
Transpiration and canopy conductance of secondary vegetation in the eastern Amazon. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 112, n. 2, p. 103-121, Aug. 2002. |
Descrição Física: |
il. |
DOI: |
http://dx.doi.org/10.1016/S0168-1923(02)00044-8 |
Idioma: |
Inglês |
Conteúdo: |
Secondary woody vegetation in the Brazilian Amazon accounts for about 30% of the cleared area in this region, which exceeds 100,000 km2. Despite the relative predominance of secondary vegetation, the hydrological and climatic properties of these areas are not well documented. In an effort to address this, the evapotranspiration (E) of a 3.5-year-old secondary vegetation in the eastern Amazon of Brazil was measured over 1 year. The annual evapotranspiration according to the Bowen ratio energy balance (BREB) amounted to 1421 mm, which is equal to rates quoted for tropical primary forests. The secondary vegetation returned 73% of the annual rainfall (1954 mm) to the atmosphere. Evapotranspiration required 73% of the net-radiation (Rn) energy; this function remained fairly constant over the whole year. In order to estimate evapotranspiration with the Penman?Monteith (PM) method, the canopy conductance (gc) was determined using the BREB results. The monthly mean daily gc varied between 14 and 22 mm s?1 in the rainy season and the transitional period (January?August), and reached a minimum of 7 mm s?1 in the dry season in October. The hourly as well as daily mean canopy conductance were approximated by a multiple linear regression analysis incorporating hourly and daily averages of Rn and vapour pressure deficit, respectively. In addition, the Jarvis-type model, which is based on a set of environmental control functions, was applied to predict hourly gc. The multiple linear regression and the non-linear optimisation (Jarvis-type model) were equally suitable for gc prediction. The optimised environmental control functions were comparable to those predicted elsewhere for Amazonian primary forests. This underlines the similarity of secondary and primary forests with respect to hydrological characteristics as well as energy turnover. MenosSecondary woody vegetation in the Brazilian Amazon accounts for about 30% of the cleared area in this region, which exceeds 100,000 km2. Despite the relative predominance of secondary vegetation, the hydrological and climatic properties of these areas are not well documented. In an effort to address this, the evapotranspiration (E) of a 3.5-year-old secondary vegetation in the eastern Amazon of Brazil was measured over 1 year. The annual evapotranspiration according to the Bowen ratio energy balance (BREB) amounted to 1421 mm, which is equal to rates quoted for tropical primary forests. The secondary vegetation returned 73% of the annual rainfall (1954 mm) to the atmosphere. Evapotranspiration required 73% of the net-radiation (Rn) energy; this function remained fairly constant over the whole year. In order to estimate evapotranspiration with the Penman?Monteith (PM) method, the canopy conductance (gc) was determined using the BREB results. The monthly mean daily gc varied between 14 and 22 mm s?1 in the rainy season and the transitional period (January?August), and reached a minimum of 7 mm s?1 in the dry season in October. The hourly as well as daily mean canopy conductance were approximated by a multiple linear regression analysis incorporating hourly and daily averages of Rn and vapour pressure deficit, respectively. In addition, the Jarvis-type model, which is based on a set of environmental control functions, was applied to predict hourly gc. The multiple linear regres... Mostrar Tudo |
Palavras-Chave: |
Igarapé-Açu; Tipitamba. |
Thesagro: |
Desmatamento; Transpiração Vegetal; Vegetação Secundária. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02690naa a2200277 a 4500 001 1407956 005 2022-11-29 008 2002 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/S0168-1923(02)00044-8$2DOI 100 1 $aSOMMER, R. 245 $aTranspiration and canopy conductance of secondary vegetation in the eastern Amazon.$h[electronic resource] 260 $c2002 300 $cil. 520 $aSecondary woody vegetation in the Brazilian Amazon accounts for about 30% of the cleared area in this region, which exceeds 100,000 km2. Despite the relative predominance of secondary vegetation, the hydrological and climatic properties of these areas are not well documented. In an effort to address this, the evapotranspiration (E) of a 3.5-year-old secondary vegetation in the eastern Amazon of Brazil was measured over 1 year. The annual evapotranspiration according to the Bowen ratio energy balance (BREB) amounted to 1421 mm, which is equal to rates quoted for tropical primary forests. The secondary vegetation returned 73% of the annual rainfall (1954 mm) to the atmosphere. Evapotranspiration required 73% of the net-radiation (Rn) energy; this function remained fairly constant over the whole year. In order to estimate evapotranspiration with the Penman?Monteith (PM) method, the canopy conductance (gc) was determined using the BREB results. The monthly mean daily gc varied between 14 and 22 mm s?1 in the rainy season and the transitional period (January?August), and reached a minimum of 7 mm s?1 in the dry season in October. The hourly as well as daily mean canopy conductance were approximated by a multiple linear regression analysis incorporating hourly and daily averages of Rn and vapour pressure deficit, respectively. In addition, the Jarvis-type model, which is based on a set of environmental control functions, was applied to predict hourly gc. The multiple linear regression and the non-linear optimisation (Jarvis-type model) were equally suitable for gc prediction. The optimised environmental control functions were comparable to those predicted elsewhere for Amazonian primary forests. This underlines the similarity of secondary and primary forests with respect to hydrological characteristics as well as energy turnover. 650 $aAmazonia 650 $aDesmatamento 650 $aTranspiração Vegetal 650 $aVegetação Secundária 653 $aIgarapé-Açu 653 $aTipitamba 700 1 $aSÁ, T. D. de A. 700 1 $aVIELHAUER, K. 700 1 $aARAÚJO, A. C. de 700 1 $aFÖLSTER, H. 700 1 $aVLEK, P. L. G. 773 $tAgricultural and Forest Meteorology$gv. 112, n. 2, p. 103-121, Aug. 2002.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registros recuperados : 244 | |
163. | | COELHO, R. de F. R.; OLIVEIRA, V. C. de; CARVALHO, C. J. R. de; SÁ, T. D. de A. Fluxo de nitrogênio e fósforo pela deposição de liteira em sistemas de produção agrícola de corte/queima e corte/trituração/manejo de capoeira, na Amazônia Oriental. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 5., 2004, Curitiba. SAFs: desenvolvimento com proteção ambiental: anais. Colombo: Embrapa Florestas, 2004. p. 559-561. (Embrapa Florestas. Documentos, 98).Biblioteca(s): Embrapa Florestas. |
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164. | | COELHO, R. de F. R.; OLIVEIRA, V. C. de; CARVALHO, C. J. R. de; SA, T. D. de A. Fluxo de nitrogênio e fósforo pela deposição de liteira em sistemas de produção agrícola de corte/queima e corte/trituração/manejo de capoeira, na Amazônia Oriental. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 5., 2004, Curitiba. SAFs: desenvolvimento com proteção ambiental: anais. Colombo: Embrapa Florestas, 2004. p. 559-561. (Embrapa Florestas. Documentos, 98).Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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165. | | KANASHIRO, M.; SÁ, T. D. de A.; VIELHAUER, K.; DENICH, M.; VLEK, P. L. G.; SERRAO, E. A. S. Future plans of the project "Capoeira" (ENV 25). In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. P4.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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166. | | SOUSA, N. C.; COIMBRA, H. M.; TRINDADE, I. A.; SOUZA, C. M. de A.; SÁ, T. D. de A. Desempenho de medidor portátil de clorofila no monitoramento de folhas de mandioca em área previamente ocupada por capoeira enriquecida. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 519-520.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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167. | | GHIRARDI, M. de N.; SÁ, T. D. de A.; FERREIRA, J. H. O.; GHIRARDI, V.; LIMA, N. P. Manejo de biomassa para produção de alimentos orgânicos sem uso do fogo. Cadernos de Agroecologia, Porto Alegre, v. 13, n. 1, jul. 2018. Edição dos anais do VI Congresso Latino-Americano (CLAA), X Congresso Brasileiro (CBA), V Seminário do DF e Entorno (SEMDF), 12-15 setembro de 2017, a Brasília, DF, Brasil.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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168. | | CURRENT, D. A.; SMITH, J.; SABOGAL, C.; FINEGAN, B.; SÁ, T. D. de A.; MEJIA, A.; NALVARTE, W.; DIAZ, A. Managing fallows for the generation of products and services from woods biomass: an emerging option for resource poor farmers on the agriculturae frontier in tropical América. In: ANNUAL MEETINGS, 2000, Minneapolis. Abstracts. Madison: ASA: CSSA: SSSA, 2000. p. 65.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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170. | | RODRIGUES, G. S.; KITAMURA, P. C.; MEYER, L. F. F.; DENICH, M.; SÁ, T. D. de A. Integration of information on fallow systems towards supporting public policies. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GKSS, 2002. 1 CD-ROM. Editado por Reinhard Lieberei, Helmut Bianchi, Vera Boehm, Christoph Reisdorff.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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171. | | RODRIGUES, G. S.; KITAMURA, P. C.; MEYER, L. F. F.; DENICH, M.; SÁ, T. D. de A. Integration of information on fallow systems toward supporting public policies. In: GERMAN-BRAZILIAN ON WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GHSS, 2002. p. 777-782. Editado por Reinhard Lieberei, Helmut Bianchi, Vera Boehm, Christoph Reisdorff.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Meio Ambiente. |
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172. | | RODRIGUES, G. S.; KITAMURA, P. C.; MEYER, L. F. F.; DENICH, M.; SÁ, T. D. de A. Integration of information on fallow systems toward supporting public policies. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GHSS, 2002. p. 224. Editado por Reinhard Lieberei, Helmut Bianchi, Vera Boehm, Christoph Reisdorff. Anexo 1 CD-ROM nº 0084, completo. Publicado também em GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS: ARCHIEMENTS AND PROPECTS OF COOPERATIVE RESEARCH,...Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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174. | | SILVA, J. A. R.; LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. de A. Relações entre variáveis fisiológicas e de ambiente físico em zebuínos e bubalinos na Ilha de Marajó. 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. 203.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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178. | | SOMMER, R.; VLEK, P. L. G.; SÁ, T. D. de A.; VIELHAUER, K.; COELHO, R. de F. R.; FÖLSTER, H. Nutrient balance of shifting cultivation by burning or mulching in the eastern Amazon - evidence for subsoil nutrient accumulation. Nutrient Cycling in Agroecosystems, v. 68, n. 3, p. 257-271, Mar. 2004.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
Biblioteca(s): Embrapa Amazônia Oriental. |
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179. | | SILVA, F. K. V.; SILVA, A. K. T.; SÁ, T. D. de A.; KATO, M. do S. A. Monitoramento da temperatura e da umidade do solo em cultivo de maracujá: (Passiflora edulis), em experiência participativa com agricultores familiares do nordeste do Pará. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 12.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 6., 2002, Belém, PA. A contribuição do profissional de Ciências Agrárias no uso e conservação da biodiversidade: anais. Belém, PA: FCAP: Embrapa Amazônia Oriental, 2002.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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180. | | ROBERTS, J. M.; CABRAL, O. M. R.; COSTA, J. P. da; McWILLIAM, A.-L. C.; SÁ, T. D. de A. An overview of the leaf area index and physiological measurements during ABRACOS. In: GASH, J. H. C.; NOBRE, C. A.; ROBERTS, J. M.; VICTORIA, R. L. (Ed.). Amazonian deforestation and climate. Chichester: J. Wiley, 1996. p. 287-306. il.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental. |
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Registros recuperados : 244 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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