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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/11/2002 |
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Data da última atualização: |
22/11/2002 |
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Autoria: |
MCKENZIE, N. J.; JACQUIER, D. W. |
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Título: |
Procedures for field sampling and laboratory measurement of saturated and unsaturated hydraulic conductivity on large soil cores. |
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Ano de publicação: |
0 |
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Fonte/Imprenta: |
Canberra : CSIRO -Division of Soils. s.d. |
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Páginas: |
20p. |
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Série: |
(CSIRO Division of Soils. Divisional Report, 125). |
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ISBN: |
0-643-05862 1 |
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Idioma: |
Inglês |
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Conteúdo: |
Methods for measuring saturated and unsaturated hydraulic conductivity on large intact soil cores are presented. Soil horizons are wet in the field using a trickle irrigation system before excavation and sampling of the large soil cores. A convenient and accurate method for measuring saturated hydraulic conductivity suited to the large cores is then described. The same cores are used for the measurement of usaturated hydraulic conductivity at potentials close to zero. The system uses a drip infiltrometer to supply water at a constant flux. Unit gradient is achieved by adjusting the potential th the lower boundary with an adjustable outflow tube. Matric potential in the core is monitored using tensiometers and water content is measured gravimetrically. Detailed descriptions of the apparatus and calculations are presented. Alternative methods for supplying water using a constant potential device are also considered. |
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Palavras-Chave: |
Growndwater flow; Soils sampling; Solos; Technique; Tecnica. |
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Thesagro: |
Amostragem; Condutividade Hidráulica. |
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Thesaurus Nal: |
Australia; measurement; soil surveys. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01713nam a2200265 a 4500
001 1330603
005 2002-11-22
008 bl uuuu u0uu1 u #d
100 1 $aMCKENZIE, N. J.
245 $aProcedures for field sampling and laboratory measurement of saturated and unsaturated hydraulic conductivity on large soil cores.
260 $aCanberra : CSIRO -Division of Soils. s.d.$c0
300 $a20p.
490 $a(CSIRO Division of Soils. Divisional Report, 125).
520 $aMethods for measuring saturated and unsaturated hydraulic conductivity on large intact soil cores are presented. Soil horizons are wet in the field using a trickle irrigation system before excavation and sampling of the large soil cores. A convenient and accurate method for measuring saturated hydraulic conductivity suited to the large cores is then described. The same cores are used for the measurement of usaturated hydraulic conductivity at potentials close to zero. The system uses a drip infiltrometer to supply water at a constant flux. Unit gradient is achieved by adjusting the potential th the lower boundary with an adjustable outflow tube. Matric potential in the core is monitored using tensiometers and water content is measured gravimetrically. Detailed descriptions of the apparatus and calculations are presented. Alternative methods for supplying water using a constant potential device are also considered.
650 $aAustralia
650 $ameasurement
650 $asoil surveys
650 $aAmostragem
650 $aCondutividade Hidráulica
653 $aGrowndwater flow
653 $aSoils sampling
653 $aSolos
653 $aTechnique
653 $aTecnica
700 1 $aJACQUIER, D. W.
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Registro original: |
Embrapa Solos (CNPS) |
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| Registros recuperados : 2 | |
| 1. |  | SANCHEZ, P. A.; AHAMED, S.; CARRÉ, F.; HARTEMINK, A. E.; HEMPEL, J.; HUISING, J.; LAGACHERIE, P.; MACBRATNEY, A. B.; MCKENZIE, N. J.; MENDONÇA-SANTOS, M. de L.; MINASNY, B.; MONTANARELLA, L.; OKOTH, P.; PALM, C. A.; SACHS, J. D.; SHEPHERD, K. D.; VAGEN, T. G.; VANLAUWE, B.; WALSH, M. G.; WINOWIECKI, L. A.; ZHANG, G. L. Digital soil map of the world. Science, v. 325, n. 5941, p. 680-681, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| 2. | | ARROUAYS, D.; GRUNDY, M. G.; HARTEMINK, A. E.; HEMPEL, J. W.; HEUVELINK, G. B. M.; HONG, S. Y.; LAGACHERIE, P.; LELYK, G.; MCBRATNEY, A. B.; MCKENZIE, N. J.; MENDONCA-SANTOS, M. D. L.; MINASNY, B.; MONTANARELLA, L.; ODEH, I. O. A.; SANCHEZ, P. A.; THOMPSON, J. A.; ZHANG, G.-L. GlobalSoilMap: toward a fine-resolution global grid of soil properties. Advances in Agronomy, v. 125, p. 93-134, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 2 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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