Saturated Hydraulic Conductivity and Textural Heterogeneity of Soils

García Gutiérrez, Carlos and Pachepsky, Yakov and Martín Martín, Miguel Angel (2017). Saturated Hydraulic Conductivity and Textural Heterogeneity of Soils. "Hydrology and Earth System Sciences Discussions (HESSD)", v. 22 (n. 7); pp. 3923-3932. ISSN 1812-2116. https://doi.org/10.5194/hess-22-3923-2018.

Description

Title: Saturated Hydraulic Conductivity and Textural Heterogeneity of Soils
Author/s:
  • García Gutiérrez, Carlos
  • Pachepsky, Yakov
  • Martín Martín, Miguel Angel
Item Type: Article
Título de Revista/Publicación: Hydrology and Earth System Sciences Discussions (HESSD)
Date: 2017
ISSN: 1812-2116
Volume: 22
Subjects:
Faculty: E.T.S.I. Navales (UPM)
Department: Matemática e Informática Aplicadas a la Ingenierías Civil y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Saturated hydraulic conductivity Ksat is an important soil parameter that highly depends on soil’s particle size distribution (PSD). The nature of this dependency is explored in this work in two ways, (1) by using the Information Entropy as a heterogeneity parameter of the PSD and (2) using descriptions of PSD in forms of textural triplets, different than the usual description in terms of the triplet of sand, silt and clay contents. The power of this parameter, as a descriptor of Ksat and 5 logKsat, was tested on a database of >19K soils. We found coefficients of determination of up to 0.977 for logKsat using a triplet that combines very coarse, coarse, medium and fine sand as coarse particles, very fine sand as intermediate particles, and silt and clay as fines. The power of the correlation is analysed for different textural classes and different triplets. Overall, the use of textural triplets different than traditional, combined with IE, may provide a useful tool for predicting Ksat values.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2015-69697-PUnspecifiedUnspecifiedUnspecified

More information

Item ID: 50314
DC Identifier: http://oa.upm.es/50314/
OAI Identifier: oai:oa.upm.es:50314
DOI: 10.5194/hess-22-3923-2018
Official URL: https://www.hydrol-earth-syst-sci.net/22/3923/2018/
Deposited by: Memoria Investigacion
Deposited on: 11 Dec 2018 15:30
Last Modified: 14 May 2019 12:08
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