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Durner, Wolfgang ; Diamantopoulos, Efstathios ; Iden, Sascha C. ; Scharnagl, Benedikt:
Hydraulic properties and non-equilibrium water flow in soils.
In:
Application of soil physics in environmental analyses : Measuring, modelling and data integration. -
Cham
: Springer
,
2014
. - S. 403-434
ISBN 978-3-319-06013-2
DOI: https://doi.org/10.1007/978-3-319-06013-2_17
Abstract
Accurate knowledge of hydraulic properties for unsaturated soils is critical in the estimation of soil water fluxes by simulation models that are based on the Richards equation. The purpose of this chapter is to review the characterization of unsaturated soil hydraulic properties for their applicability in models simulating unsaturated water transport. We start with a short review of the fundamentals that lead to the definition of the hydraulic functions in the framework of continuum hydromechanics. Next, we address problems of common parameterizations of hydraulic functions in the critical regions near and at saturation, towards dryness, and on hysteresis. We find that traditional approaches have deficiencies, but recent progress has been significant in particular with respect to including film and corner flow components in the hydraulic conductivity function. The chapter closes with a discussion of the phenomenon of dynamic non-equilibrium in soil water flow, which shows to our opinion toward the need for a paradigm change in the modeling of soil water transport.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenphysik Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenphysik > Lehrstuhl Bodenphysik - Univ.-Prof. Dr. Efstathios Diamantopoulos |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie |
| Eingestellt am: | 21 Mai 2026 09:38 |
| Letzte Änderung: | 21 Mai 2026 09:38 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/97269 |