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פותח על ידי קלירמאש פתרונות בע"מ -
A conceptual model of the soil water retention curve
Year:
1998
Source of publication :
Water Resources Research
Authors :
אסולין, שמואל
;
.
Volume :
34
Co-Authors:
Assouline, S., Unite de Science du Sol, INRA, Versailles, France, Unite de Science du Sol, INRA, Route de St-Cyr, 78026 Versailles Cedex, France
Tessier, D., Unite de Science du Sol, INRA, Versailles, France, Unite de Science du Sol, INRA, Route de St-Cyr, 78026 Versailles Cedex, France
Bruand, A., Unite de Science du Sol, SESCPF, INRA, Ardon, France, Unite de Science du Sol, SESCPF, INRA, 45160, Ardon, France
Facilitators :
From page:
223
To page:
231
(
Total pages:
9
)
Abstract:
A conceptual model based on the assumption that soil structure evolves from a uniform random fragmentation process is proposed to define the water retention function. The fragmentation process determines the particle size distribution of the soil. The transformation of particles volumes into pore volumes via a power function and the adoption of the capillarity equation lead to an expression for the water retention curve. This expression presents two fitting parameters only. The proposed model is tested on water retention data sets of 12 soils representing a wide range of soil textures, from sand to clay. The agreement between the fitted curves and the measured data is very good. The performances of the model are also compared with those of the two-parameter models of van Genuchten [1980] and Russo [1988] for the water retention function. In general, the proposed model exhibits increased flexibility and improves the fit at both the high and the low water contents range.
Note:
Related Files :
Increased flexibility
Low water-content
Particle size analysis
soil moisture
Soils
Two-parameter models
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22679
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:53
You may also be interested in
Scientific Publication
A conceptual model of the soil water retention curve
34
Assouline, S., Unite de Science du Sol, INRA, Versailles, France, Unite de Science du Sol, INRA, Route de St-Cyr, 78026 Versailles Cedex, France
Tessier, D., Unite de Science du Sol, INRA, Versailles, France, Unite de Science du Sol, INRA, Route de St-Cyr, 78026 Versailles Cedex, France
Bruand, A., Unite de Science du Sol, SESCPF, INRA, Ardon, France, Unite de Science du Sol, SESCPF, INRA, 45160, Ardon, France
A conceptual model of the soil water retention curve
A conceptual model based on the assumption that soil structure evolves from a uniform random fragmentation process is proposed to define the water retention function. The fragmentation process determines the particle size distribution of the soil. The transformation of particles volumes into pore volumes via a power function and the adoption of the capillarity equation lead to an expression for the water retention curve. This expression presents two fitting parameters only. The proposed model is tested on water retention data sets of 12 soils representing a wide range of soil textures, from sand to clay. The agreement between the fitted curves and the measured data is very good. The performances of the model are also compared with those of the two-parameter models of van Genuchten [1980] and Russo [1988] for the water retention function. In general, the proposed model exhibits increased flexibility and improves the fit at both the high and the low water contents range.
Scientific Publication
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