|
Registro Completo |
|
Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
|
Data corrente: |
14/05/1996 |
|
Data da última atualização: |
14/05/1996 |
|
Autoria: |
JAYNES, D. B.; TYLER, E. J. |
|
Título: |
Using soil physical properties to estimate hydraulic conductivity. |
|
Ano de publicação: |
1984 |
|
Fonte/Imprenta: |
Soil Science, v.138, n.4, p.298-305, 1984. |
|
Idioma: |
Inglês |
|
Conteúdo: |
We measured the hydraulic conductivity of a coarse-textured C horizon at 15 sites. The hydraulic conductivity over the soil water potential range of 0 to - 10kPa was measured in situ with the crust test method,and the data were fit to a simple empirical equation. The resulting regression coefficients were found to be significantly correlated at the1% confidence level with the percentage of sand, percentage of silt, bulk density, and porosity of the soil. An equation based only on the sand content of the soil was developed that described 83% of the hydraulic conductivity variation. The equation also successfully described the hydraulic conductivity of a soil with similar physical properties, but was inadequate when applied to a fine-textured soil. The techniqueshows potential of serving as an easy, reliable, and accurate means for estimating soil hidraulic conductivity. |
|
Palavras-Chave: |
Physical. |
|
Thesagro: |
Condutividade Hidráulica; Física; Solo. |
|
Thesaurus Nal: |
hydraulic conductivity; soil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01415naa a2200205 a 4500
001 1077074
005 1996-05-14
008 1984 bl --- 0-- u #d
100 1 $aJAYNES, D. B.
245 $aUsing soil physical properties to estimate hydraulic conductivity.
260 $c1984
520 $aWe measured the hydraulic conductivity of a coarse-textured C horizon at 15 sites. The hydraulic conductivity over the soil water potential range of 0 to - 10kPa was measured in situ with the crust test method,and the data were fit to a simple empirical equation. The resulting regression coefficients were found to be significantly correlated at the1% confidence level with the percentage of sand, percentage of silt, bulk density, and porosity of the soil. An equation based only on the sand content of the soil was developed that described 83% of the hydraulic conductivity variation. The equation also successfully described the hydraulic conductivity of a soil with similar physical properties, but was inadequate when applied to a fine-textured soil. The techniqueshows potential of serving as an easy, reliable, and accurate means for estimating soil hidraulic conductivity.
650 $ahydraulic conductivity
650 $asoil
650 $aCondutividade Hidráulica
650 $aFísica
650 $aSolo
653 $aPhysical
700 1 $aTYLER, E. J.
773 $tSoil Science$gv.138, n.4, p.298-305, 1984.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
|
