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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/03/2016 |
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Data da última atualização: |
04/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CABRAL, O. M. R.; ROCHA, H. R. da; GASH, J. H. C.; FREITAS, H. C. de; LIGO, M. A. V. |
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Afiliação: |
OSVALDO MACHADO RODRIGUES CABRAL, CNPMA; HUMBERTO RIBEIRO DA ROCHA, IAG-USP; JOHN H GASH, Centre for Ecology and Hydrology; HLBER CUSTODIO FREITAS, IAG-USP; MARCOS ANTONIO VIEIRA LIGO, CNPMA. |
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Título: |
Water and energy fluxes from a woodland savanna (cerrado) in southeast Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Hydrology: Regional Studies, Amsterdam, v. 4, part. B, p. 22-40, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The cerrado sensu-stricto savanna evapotranspiration was observed using the eddy-covariance method over three years. New hydrological insights for the region: The first year total rainfall (R = 1664 mm) was 11% above the long-term rainfall (1498 mm) and the total evapotranspiration (ET = 1242 mm) and water equivalent of available energy (Av = 1835 mm) were approximately 4% and 2% greater, respectively, than in the second year when the rainfall total was 5% lower than the long-term average. In the third year despite the total rainfall (1259 mm) being 24% lower than the first year and 16% lower than the average, the totals of ET (1242 mm) and Av (1815 mm) were approximately the same. The small variation in the observed annual ET totals shows that in this cerrado vegetation the deep soil moisture content supports the ET in a dry year and the water available for recharging the soil profile and groundwater (∼R − ET) was dominated by the rainfall amount being significantly greater in the wet year (422 mm) than in the dry year (13 mm). 650 __ |a Evapotranspiration; Eddy covariance; Canopy conductance; Savanna; Leaf area index; Rainfall interception. |
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Palavras-Chave: |
2214-5818; Canopy conductance; Rainfall interception; Savanna. |
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Thesagro: |
Cerrado; Evapotranspiração. |
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Thesaurus Nal: |
Eddy covariance; leaf area index. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/140645/1/2015AP047.pdf
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Marc: |
LEADER 01966naa a2200265 a 4500
001 2039664
005 2016-03-04
008 2015 bl uuuu u00u1 u #d
100 1 $aCABRAL, O. M. R.
245 $aWater and energy fluxes from a woodland savanna (cerrado) in southeast Brazil.$h[electronic resource]
260 $c2015
520 $aAbstract: The cerrado sensu-stricto savanna evapotranspiration was observed using the eddy-covariance method over three years. New hydrological insights for the region: The first year total rainfall (R = 1664 mm) was 11% above the long-term rainfall (1498 mm) and the total evapotranspiration (ET = 1242 mm) and water equivalent of available energy (Av = 1835 mm) were approximately 4% and 2% greater, respectively, than in the second year when the rainfall total was 5% lower than the long-term average. In the third year despite the total rainfall (1259 mm) being 24% lower than the first year and 16% lower than the average, the totals of ET (1242 mm) and Av (1815 mm) were approximately the same. The small variation in the observed annual ET totals shows that in this cerrado vegetation the deep soil moisture content supports the ET in a dry year and the water available for recharging the soil profile and groundwater (∼R − ET) was dominated by the rainfall amount being significantly greater in the wet year (422 mm) than in the dry year (13 mm). 650 __ |a Evapotranspiration; Eddy covariance; Canopy conductance; Savanna; Leaf area index; Rainfall interception.
650 $aEddy covariance
650 $aleaf area index
650 $aCerrado
650 $aEvapotranspiração
653 $a2214-5818
653 $aCanopy conductance
653 $aRainfall interception
653 $aSavanna
700 1 $aROCHA, H. R. da
700 1 $aGASH, J. H. C.
700 1 $aFREITAS, H. C. de
700 1 $aLIGO, M. A. V.
773 $tJournal of Hydrology: Regional Studies, Amsterdam$gv. 4, part. B, p. 22-40, 2015.
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Embrapa Meio Ambiente (CNPMA) |
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