Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Saturated hydraulic conductivity and textural heterogeneity of soils
Año:2018
Áreas de investigación
  • Física química y matemáticas,
  • Ingenierías
Datos
Descripción
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 lnKsat, was tested on a database larger than 19?000 soils. Bootstrap analysis yielded coefficients of determination of up to 0.977 for lnKsat using a triplet that combines very coarse, coarse, medium, and fine sand as coarse particles; very fine sand, and silt as intermediate particles; and clay as fine particles. The power of the correlation was analysed for different textural classes and different triplets using a bootstrap approach. Also, it is noteworthy that soils with finer textures had worse correlations, as their hydraulic properties are not solely dependent on soil PSD. This heterogeneity parameter can lead to new descriptions of soil PSD, other than the usual clay, silt, and sand, that can describe better different soil physical properties, that are texture-dependent.
Internacional
Si
JCR del ISI
Si
Título de la revista
Hydrol. Earth Syst. Sci.
ISSN
3923-2018
Factor de impacto JCR
Información de impacto
Volumen
22
DOI
Número de revista
7
Desde la página
23
Hasta la página
32
Mes
JULIO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Carlos Garcia-Gutierrez Baez (UPM)
  • : Yakov A. Pachepsky
  • Autor: Miguel Angel Martin Martin (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Matemática Aplicada
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)