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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/03/1998 |
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Data da última atualização: |
21/12/2016 |
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Autoria: |
SILVA, E. M. da. |
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Título: |
A test of the independent domain theory for predicting moisture hystereetic paths. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Davis: University of California, 1980. |
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Páginas: |
165 p. |
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Descrição Física: |
il. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
The conceptual model of hysteresis as proposed by mualem ( 1974 ) was used as a means of testing the independente domain theory to describe measured primary scanning curves. Therr porous materials were used: Boise sandstone, yolo fine sandy loam, and aiken clay. Water content values at a given capillary pressure head were mearsured using a static equilibrium method. The applied pressure increment for reaching each along a specific characteristic curve was equally spaced. Appreciable water evaporation losses were registered and a correction was utilized to obtain actual water content values. The measured moisture characteriscs varied considerably for each porous material. The area enclosed between boundary curves being smaller for sandstone than that for the other materials was an indication that the pore geometry and radial interconnections was simpler for sandstone than that for natural soils. The comparasion between predicted and measured scanning curves was better for the sandstone than for soil. In general there was a satisfactory used is simple to apply and does not require much computation time for its application. |
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Palavras-Chave: |
Conteúdo da água no solo; Movimento da água no solo; Propriedade magnética; Soil chemicophysical properties; Soil water moviment. |
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Thesagro: |
Evaporação; Física do Solo. |
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Thesaurus Nal: |
evaporation; magnetic properties; soil water content. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01889nam a2200253 a 4500
001 1402011
005 2016-12-21
008 1980 bl uuuu m 00u1 u #d
100 1 $aSILVA, E. M. da
245 $aA test of the independent domain theory for predicting moisture hystereetic paths.
260 $aDavis: University of California$c1980
300 $a165 p.$cil.
500 $aM.Sc. Thesis.
520 $aThe conceptual model of hysteresis as proposed by mualem ( 1974 ) was used as a means of testing the independente domain theory to describe measured primary scanning curves. Therr porous materials were used: Boise sandstone, yolo fine sandy loam, and aiken clay. Water content values at a given capillary pressure head were mearsured using a static equilibrium method. The applied pressure increment for reaching each along a specific characteristic curve was equally spaced. Appreciable water evaporation losses were registered and a correction was utilized to obtain actual water content values. The measured moisture characteriscs varied considerably for each porous material. The area enclosed between boundary curves being smaller for sandstone than that for the other materials was an indication that the pore geometry and radial interconnections was simpler for sandstone than that for natural soils. The comparasion between predicted and measured scanning curves was better for the sandstone than for soil. In general there was a satisfactory used is simple to apply and does not require much computation time for its application.
650 $aevaporation
650 $amagnetic properties
650 $asoil water content
650 $aEvaporação
650 $aFísica do Solo
653 $aConteúdo da água no solo
653 $aMovimento da água no solo
653 $aPropriedade magnética
653 $aSoil chemicophysical properties
653 $aSoil water moviment
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 734 | |
| 17. |  | SILVA, E. M. da; HASEGAWA, S. Measuring soil water content by using TDR. In: PROJECT of sustainable agricultural development and natural resources conservation in the Brazilian Cerrado: technical report 1994-1999. Planaltina, DF: JICA: Embrapa Cerrados, 2000. Cap. 19. p. 338.381. 1 CD ROM. Editado por Edson Sano.| Biblioteca(s): Embrapa Cerrados. |
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| 19. | | SILVA, E. M. R. da; DOBEREINER, J. O papel das leguminosas no reflorestamento. In: SEMINÁRIO SOBRE ATUALIDADES E PERSPECTIVAS FLORESTAIS: Associações Biológicas entre Especies Florestais e Microorganismos para Aumento da Produtividade Economica dos Reflorestamentos, 7., 1982, Curitiba. Anais... Curitiba: EMBRAPA-URPFCS, 1982. p.33-52. (EMBRAPA-URPFCS. Documentos, 12)| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 734 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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