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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2002.5700
Last checked: 02/28/2024
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2002.5700
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| Publication Type:
| Refereed |
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| Author(s): | Young, M. H.;
Karagunduz, A.;
Ŝim^Dounek, J.;
Pennell, K. D. |
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| Author Affiliation: | Young: Division of Hydrologic Sciences, Desert Research Institute, Las Vegas, NV; Karagunduz and Pennell: School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA; and Ŝim^Dounek: U. S. Salinity Laboratory, USDA-ARS, Riverside, CA |
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| Title: | A modified upward infiltration method for characterizing soil hydraulic properties |
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| Section: | Division S-1 - Notes
Other records with the "Division S-1 - Notes" Section
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| Source: | Soil Science Society of America Journal. Vol. 66, No. 1, January/February 2002, p. 57-64. |
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| Publishing Information: | Madison, WI: Soil Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Infiltration; Hydraulic properties; Analytical methods; Tensiometers; Physical properties of soil; Soil water content; Water pressure; Hydraulic conductivity
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| Abstract/Contents: | "This note describes a modified upward infiltration method (UIM), which combines laboratory experiments and inverse parameter estimation for determining soil hydraulic properties in the wetting direction. The laboratory method used a Mariotte system to impose a constant head boundary condition on the bottom of a soil column, allowing water to be taken up by the soil material under negative pressure head. Tensiometers installed along the column measured the change in soil pressure head before and after wetting front arrival. The HYDRUS-1D code was used to obtain an optimal set of van Genuchten parameters, using pressure head and cumulative flux data as auxiliary variables in the objective function. Two soil types (a fine sand and a sandy loam) were tested in triplicate in uniformly-packed soil columns. The results of the uniform column experiments were repeatable, and showed excellent fits between observed and predicted data. Fitted parameters were used in forward simulations to independently predict water flow behavior in layered columns of the same soil material. The forward simulations successfully predicted water flow for sand-over-loam and loam-over-sand combinations in layered columns. The relative simplicity of the experimental procedure and the availability of appropriate numerical models renders the modified upward infiltration method an alternative for determining wetting hydraulic properties of soils." |
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| Language: | English |
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| References: | 24 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Young, M. H., A. Karagunduz, J. Ŝim^Dounek, and K. D. Pennell. 2002. A modified upward infiltration method for characterizing soil hydraulic properties. Soil Sci. Soc. Am. J. 66(1):p. 57-64. |
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| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2002.5700
Last checked: 02/28/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2002.5700
Last checked: 02/28/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .S65 |
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