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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
20/12/2017 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHOR, T. L.; DIAS, N. L.; ARAUJO, A. C. de; WOLFF, S.; ZAHN, E.; MANZI, A.; TREBS, I.; SÁ, M. O.; TEIXEIRA, P. R.; SÖRGEL, M. |
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Afiliação: |
Tomás L. Chor, UFPR / University of California; Nelson L. Dias, UFPR; ALESSANDRO CARIOCA DE ARAUJO, CPATU; Stefan Wolff, Max Planck Institute for Chemistry; Einara Zahn, UFPR; Antônio Manzi, INPE; Ivonne Trebs, Environmental Research and Innovation (ERIN); Marta O. Sá, INPA; Paulo R. Teixeira, INPA; Matthias Sörgel, Max Planck Institute for Chemistry. |
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Título: |
Flux-variance and flux-gradient relationships in the roughnesssublayer over the Amazon forest. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 239, p. 213-222, May 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previously measured fluxes in the literature for the Amazonforest. MenosThe failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previous... Mostrar Tudo |
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Palavras-Chave: |
Subcamada de rugosidade. |
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Thesagro: |
Floresta. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02303naa a2200265 a 4500
001 2083084
005 2021-12-22
008 2017 bl uuuu u00u1 u #d
100 1 $aCHOR, T. L.
245 $aFlux-variance and flux-gradient relationships in the roughnesssublayer over the Amazon forest.$h[electronic resource]
260 $c2017
520 $aThe failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previously measured fluxes in the literature for the Amazonforest.
650 $aAmazonia
650 $aFloresta
653 $aSubcamada de rugosidade
700 1 $aDIAS, N. L.
700 1 $aARAUJO, A. C. de
700 1 $aWOLFF, S.
700 1 $aZAHN, E.
700 1 $aMANZI, A.
700 1 $aTREBS, I.
700 1 $aSÁ, M. O.
700 1 $aTEIXEIRA, P. R.
700 1 $aSÖRGEL, M.
773 $tAgricultural and Forest Meteorology$gv. 239, p. 213-222, May 2017.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
24/04/2008 |
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Data da última atualização: |
28/09/2022 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
CARVALHO, J. O. M. de; RODRIGUES, C. D. S. |
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Afiliação: |
José Orestes Merola de Carvalho, Embrapa Rondônia; Carlos Daniel Souza Rodrigues, Centro de Pesquisa Fundação Mokiti Okada. |
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Título: |
Bokashi: composto fermentado para a melhoria da qualidade do solo. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Porto Velho: Embrapa Rondônia, 2007. |
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Descrição Física: |
1 Folder. |
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Idioma: |
Português |
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Conteúdo: |
Folder explicativo sobre o uso do Bokashi, o qual se utiliza para promoção do equilíbrio biológico do solo, que, por sua vez irá melhorar suas condições físicas (proporcionando a formação de agregados, aumentando a capacidade do solo armazenar água e drenar o excesso, minimizando os riscos da erosão), químicas (diminuindo as perdas por lixiviação e promovendo maior disponibilização de nutrientes a partir da fermentação da matéria orgânica disponibilizada pela adubação verde) e sanitárias (diminuição das populações de fitopatógenos do solo). |
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Palavras-Chave: |
Bokashi; Equilíbrio biológico. |
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Thesagro: |
Solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAF-RO-2010/12553/1/folder-bokashi.pdf
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Marc: |
LEADER 01057nam a2200169 a 4500
001 1710116
005 2022-09-28
008 2007 bl uuuu u0uu1 u #d
100 1 $aCARVALHO, J. O. M. de
245 $aBokashi$bcomposto fermentado para a melhoria da qualidade do solo.$h[electronic resource]
260 $aPorto Velho: Embrapa Rondônia$c2007
300 $c1 Folder.
520 $aFolder explicativo sobre o uso do Bokashi, o qual se utiliza para promoção do equilíbrio biológico do solo, que, por sua vez irá melhorar suas condições físicas (proporcionando a formação de agregados, aumentando a capacidade do solo armazenar água e drenar o excesso, minimizando os riscos da erosão), químicas (diminuindo as perdas por lixiviação e promovendo maior disponibilização de nutrientes a partir da fermentação da matéria orgânica disponibilizada pela adubação verde) e sanitárias (diminuição das populações de fitopatógenos do solo).
650 $aSolo
653 $aBokashi
653 $aEquilíbrio biológico
700 1 $aRODRIGUES, C. D. S.
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Embrapa Rondônia (CPAF-RO) |
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