Hydraulic conductivity in two sites of the Central Valley of Costa Rica: comparative analysis of three methodologies of testing in the vadose zone

 

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Detalles Bibliográficos
Autores: Macías, Julio, Vargas, Asdrubal, Arellano, Federico
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2018
Descripción:This article presents a comparative analysis of 15 hydraulic conductivity field tests performed in the vadose zone at two sites in Central Valley of Costa Rica, characterized by silt and sandy-silt soils. Conductivity tests included Guelph permeameter (GP), Porchet (PM) and Double Ring (DR) methods. All three methods indicates higher field saturated conductivity (Kfs) values at sandy-silt soils as expected. Calculated Kfs values show the same trend reported in various scientific publication were DR >PM>GP. Authors interpreted lower values of Kfs obtained for GP as the result of: consideration of capillarity effects in the mathematical formulation, and more importantly the effects of short periods of pre-saturation and monitoring, during execution of PM and DR tests.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/34160
Acceso en línea:https://revistas.ucr.ac.cr/index.php/geologica/article/view/34160
Access Level:acceso abierto
Palabra clave:conductividad hidráulica
zona no saturada
permeámetro Guelph
método de Porchet y doble anillo
hydraulic conductivity
vadose zone
Guelph permeameter
Porchet method
double ring method