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W. Brutsaert (1976)
The concise formulation of diffusive sorption of water in a dry soilWater Resources Research, 12
A. Rogowski (1971)
Watershed Physics: Model of the Soil Moisture CharacteristicWater Resources Research, 7
Some remarks on science and catchment prediction
C. Amerman (1973)
Hydrology and Soil Science 1
J. Philip (1957)
THE THEORY OF INFILTRATION: 4. SORPTIVITY AND ALGEBRAIC INFILTRATION EQUATIONSSoil Science, 84
H. Green, G. Ampt (1912)
Studies on Soil Physics: Part II — The Permeability of an Ideal Soil to Air and WaterThe Journal of Agricultural Science, 5
U.S. Dep. Agr. Agr. Handb., 18
(1976)
Estimating saturated hydraulic conductivity and capillary potential at the wetting front
N. Collis-george (1977)
Infiltration equations for simple soil systemsWater Resources Research, 13
W. Gardner, D. Hillel, Y. Benyamini (1970)
Post-Irrigation Movement of Soil Water: 1. RedistributionWater Resources Research, 6
G. Campbell (1974)
A SIMPLE METHOD FOR DETERMINING UNSATURATED CONDUCTIVITY FROM MOISTURE RETENTION DATASoil Science, 117
W., Hjbbbr And, A. Ampt (1911)
Studies on Soil Phyics.The Journal of Agricultural Science, 4
(1951)
U.S. Dep. Agr. Agr. Handb
R. Mein, C. Larson (1973)
Modeling infiltration during a steady rainWater Resources Research, 9
S. Neuman (1976)
Wetting front pressure head in the infiltration model of Green and AmptWater Resources Research, 12
D. Brakensiek (1977)
Estimating the effective capillary pressure in the Green and Ampt Infiltration EquationWater Resources Research, 13
(1968)
Moisture - tension data for selected soils on experimental watersheds
(1911)
Studies on soil physics, 1, Flow of air and water through soils
The soil moisture characteristic may be modeled as a power curve combined with a short parabolic section near saturation to represent gradual air entry. This two‐part function—together with a power function relating soil moisture and hydraulic conductivity—is used to derive a formula for the wetting front suction required by the Green‐Ampt equation. Representative parameters for the moisture characteristic, the wetting front suction, and the sorptivity, a parameter in the infiltration equation derived by Philip (1957), are computed by using the desorption data of Holtan et al. (1968). Average values of the parameters, and associated standard deviations, are calculated for 11 soil textural classes. The results of this study indicate that the exponent of the moisture characteristic power curve can be predicted reasonably well from soil texture and that gradual air entry may have a considerable effect on a soil's wetting front suction.
Water Resources Research – Wiley
Published: Aug 1, 1978
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