University of California

The measurement and description of water flow through Columbia silt loam and Hesperia sandy loam


J. M. Davidson
D. R. Nielsen
J. W. Biggar

Authors Affiliations

J. M. Davidson was Laboratory Technician IV, Department of Irrigation, Davis; D. R. Nielsen was Assistant Professor of Irrigation and Assistant Irrigationist, Davis; J. W. Biggar was Assistant Irrigationist and Lecturer, Davis.

Publication Information

Hilgardia 34(15):601-617. DOI:10.3733/hilg.v34n15p601. September 1963.

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Experimental data are presented for water entering air-dry soils in the horizontal and vertical position. All soils were wet with water below atmospheric pressure. The ability of a frequently used mathematical equation to describe the soil water movement is examined for several boundary conditions. The mathematical assumptions and their physical reality are discussed. A method of measuring the unsaturated capillary conductivity is presented.

Literature Cited

Anderson D. M., Low P. F. The density of water adsorbed by lithium-sodium-, and potassium-bentonite. Soil Sci. Soc. Am. Proc. 1958. 22:99-103.

Anderson D. M., Linville A. Temperature fluctuations at a wetting front: I. Characteristic temperature-time curves. Soil Sci. Soc. Amer. Proc. 1962. 26:14-18. DOI: 10.2136/sssaj1962.03615995002600010005x [CrossRef]

Baver L. D. Soil Physics. 1956. New York: John Wiley and Sons, Inc. DOI: 10.1097/00010694-195604000-00024 [CrossRef]

Biggar J. W., Taylor S. A. Some aspects of the kinetics of moisture flow into unsaturated soils. Soil Sci. Soc. Am. Proc. 1960. 24:81-85.

Bodman G. B., Colman E. A. Moisture and energy conditions during downward entry of water into soils. Soil Sci. Soc. Am. Proc. 1943. 8:116-22.

Bruce R. R., Kluute A. The measurement of soil moisture diffusivity. Soil Sci. Soc. Am. Proc. 1956. 20:458-62. DOI: 10.2136/sssaj1963.03615995002700010011x [CrossRef]

Childs E. C., Collis-George N. Soil geometry and soil water equilibrium. Disc. Faraday Soc. 1948. 3:78-85.

The permeability of porous materials. Proc. Roy. Soc. London. 1950. A201:392-405.

Darcy H. Les fountaines publiques de la ville de Dijon. 1856. Paris: Dalmont.

Davidson J. M., Biggar J. W., Nielsen D. R. A model for teaching students how water and air move through soil. Soil Sci. Soc. Am. Proc. 1962. 26:302-03.

Elrick D. E. Unsaturated flow properties of soils. Australian Jour. Soil Research. 1963. 1:1-5. DOI: 10.1071/SR9630001 [CrossRef]

Miller E. E., Miller R. D. Theory of capillary flow: 1. Practical implications. Soil Sci. Soc. Am. Proc. 1955. 19:267-71.

Nielsen D. R., Phillips R. E. Small fritted glass bead plates for determination of moisture retention. Soil Sci. Soc. Am. Proc. 1958. 22:574-75.

Nielsen D. R., Biggar J. W. Measuring capillary conductivity. Soil Science. 1961. 92:192-93. DOI: 10.1097/00010694-196109000-00008 [CrossRef]

Nielsen D. R., Biggar J. W., Davidson J. M. Experimental consideration of diffusion analysis in unsaturated flow problems. Soil Sci. Soc. Am. Proc. 1962. 26:107-11.

Philip J. R. Numerical solution of equations of the diffusion type with diffusivity concentration-dependent. Trans. Faraday Soc. 1955. 51:885-92. DOI: 10.1039/tf9555100885 [CrossRef]

Numerical solution of equations of the diffusion type with diffusivity concentration-dependent: 2. Australian Jour. Phys. 1957a. 10:29-42. DOI: 10.1071/PH570029 [CrossRef]

The theory of infiltration: 2. The profile at infinity. Soil Science. 1957b. 83:435-48.

The theory of infiltration: 1. The infiltration equation and its solution. Soil Science. 1957c. 83:345-57.

The theory of infiltration: 3. Moisture profile and relation to experiment. Soil Science. 1957d. 84:163-87. DOI: 10.1097/00010694-195708000-00008 [CrossRef]

Richards L. A. Capillary conduction of liquid through porous media. Physics. 1931. 1:318-33.

Report of the sub-committee on permeability and infiltration, committee on terminology, Soil Science Society of America. Soil Sci. Soc. Am. Proc. 1952. 16:85-88. DOI: 10.2136/sssaj1952.03615995001600010025x [CrossRef]

Youngs E. G. Moisture profiles during vertical infiltration. Soil Sciences. 1957. 84:283-90. DOI: 10.1097/00010694-195710000-00003 [CrossRef]

Davidson J, Nielsen D, Biggar J. 1963. The measurement and description of water flow through Columbia silt loam and Hesperia sandy loam. Hilgardia 34(15):601-617. DOI:10.3733/hilg.v34n15p601
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