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Published in Soil Sci Soc Am J 56:1751-1753 (1992)
© 1992 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Interpretation of Solute Transport Data Obtained with Fiberglass Wick Soil Solution Samplers

N. N. Poletika*, K. Roth and W. A. Jury

Contribution from the Dep. of Soil and Environmental Sciences, Univ. of California, Riverside, CA 92521

*Corresponding author.

ABSTRACT

The fiberglass wick soil solution sampler has shown potential for use in unsaturated soil, but its effect on determination of transport properties is not fully characterized. This study investigated transport behavior in the sampler of Br-, simazine [2-chloro-4,6-bis(ethylamino)-s-triazine], and MS-2 coliphage. Travel-time moment analysis for several steady flow experiments involving narrow pulse inputs of these components showed rapid breakthrough with well-defined peaks and negligible adsorption. Assuming a convection-dispersion process in a two-layer system consisting of homogeneous soil overlying a sampler, moment analysis suggests that, for the flow rates tested, both expected travel time and its variance are little influenced by transport through the porous wick for layer thicknesses commonly used in solute transport studies.

Received for publication December 3, 1991.


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Copyright © 1992 by the Soil Science Society of America.