Open AccessAnalytical expressions for noncapillary soil water retention based on popular capillary retention models
Author(s) -
Streck Thilo,
Weber Tobias K. D.
Publication year - 2020
Publication title -
vadose zone journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.036
H-Index - 81
ISSN - 1539-1663
DOI - 10.1002/vzj2.20042
Subject(s) - water retention , capillary action , saturation (graph theory) , function (biology) , soil science , soil water , characterisation of pore space in soil , mathematics , environmental science , geotechnical engineering , geology , thermodynamics , physics , combinatorics , evolutionary biology , biology , porosity
Recently, Weber et al. proposed a new model for noncapillary retention of soil water without introducing new parameters. The model is based on the integral of any given saturation function for the capillary part in log space. In the original paper, the integration was carried out numerically. Here, we derive analytical solutions for the most popular soil water retention models (van Genuchten, Kosugi, and Brooks–Corey).