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Sammanfattning

The saturated hydraulic conductivity of soil, K-s, is a critical parameter in hydrological models that remains notoriously difficult to predict. In this study, we test the capability of a model based on percolation theory and critical path analysis to estimate K-s measured on 95 undisturbed soil cores collected from contrasting soil types. One parameter (the pore geometry factor) was derived by model fitting, while the remaining two parameters (the critical pore diameter, d(c), and the effective porosity) were derived from X-ray computed tomography measurements. The model gave a highly significant fit to the K-s measurements (p

Nyckelord

permeability; saturated hydraulic conductivity; soil; critical path analysis; percolation; model

Publicerad i

Water Resources Research
2018, volym: 54, nummer: 11, sidor: 9255-9263
Utgivare: AMER GEOPHYSICAL UNION

SLU författare

UKÄ forskningsämne

Markvetenskap
Oceanografi, hydrologi, vattenresurser

Publikationens identifierare

  • DOI: https://doi.org/10.1029/2018WR023609

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/97658