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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| Autoři: | , , |
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| Médium: | artículo original |
| Stav: | Versión publicada |
| Datum vydání: | 2018 |
| Popis: | 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. |
| Země: | Portal de Revistas UCR |
| Instituce: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Jazyk: | Español |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/34160 |
| On-line přístup: | https://archivo.revistas.ucr.ac.cr/index.php/geologica/article/view/34160 |
| Klíčové slovo: | conductividad hidráulica zona no saturada permeámetro Guelph método de Porchet y doble anillo hydraulic conductivity vadose zone Guelph permeameter Porchet method double ring method |