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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1998.03615995006200050005x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1998.03615995006200050005x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Bauters, Tim W. J.;
DiCarlo, David A.;
Steenhuis, Tammo S.;
Parlange, Jean-Yves |
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| Author Affiliation: | Bauters, Steenhuis, and Parlange: Department of Agricultural and Biological Engineering, Cornell University, Ithaca, New York; DiCarlo: Department of Petroleum Engineering, Stanford University, Stanford, California |
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| Title: | Preferential flow in water-repellent sands |
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| Section: | Soil physics
Other records with the "Soil physics" Section
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| Source: | Soil Science Society of America Journal. Vol. 62, No. 5, September/October 1998, p. 1185-1190. |
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| Publishing Information: | Madison, WI: Soil Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Water repellency; Infiltration rate; Preferential flow; Hydrophobic soils; Water pollution; Soil water
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| Abstract/Contents: | "Water-repellent soils occur all over the world and affect both groundwater pollution and crop yield. The finger-like wetting patterns in these soils have many similarities with unstable wetting fronts in coarse-grained sandy soils. Our objectives were to study the water movement in water-repellent sand and to examine how the theory for unstable wetting fronts applies to water-repellent sands. Infiltration experiments, in which moisture content and matric potentials were measured, were carried out in slab chambers with identical sands but with different levels of water repellence. Soil water characteristics were determined in separate experiments. Infiltration in the hydrophilic soil resulted in a uniform and horizontal front. All water-repellent sands showed a fingered flow pattern. For negative water-entry values, water infiltrated without delay. For positive values, water entered the soil only after the depth of the ponded water equaled or exceeded the water-entry pressure, which increased with increasing repellency. The finger widths predicted with the unstable flow theory agreed rather well with the observed values. In general, the research showed that the wetting patterns of water-repellent sands depended directly on the soil water characteristic curve. This implies that the type of wetting front and risk to groundwater pollution can be predicted based on laboratory-measured soil hydraulic properties." |
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| Language: | English |
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| References: | 22 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bauters, T. W. J., D. A. DiCarlo, T. S. Steenhuis, and J.-Y. Parlange. 1998. Preferential flow in water-repellent sands. Soil Sci. Soc. Am. J. 62(5):p. 1185-1190. |
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| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1998.03615995006200050005x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1998.03615995006200050005x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2199342a |
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