Abstract
All soils have horizons (layers) but their influence on water and solute flux have not been studied in any detail. Solute transport parameters were examined in a sandy soil by applying a pulse of KCl to the soil surface and measuring breakthrough curves in both the Ap horizon and B horizon using solution samplers. Measurements were taken under steady surface flux density of water applied using drip lines. The solute velocity in the B horizon was significantly faster than the A horizon and was directly related to a lower transport volume in the B horizon. Solute velocity in the B horizon could not be accurately estimated without knowing the thickness of the Ap horizon. The measurements suggested a transfer function model (correlated flow) would accurately predict the variance of solute travel times, if the variance prediction was corrected for faster mean solute travel times in the B horizon. The study indicates the importance of obtaining both solute transport and soil survey information at a site.
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References
Butters, G.L., and W.A. Jury. 1989: Field scale transport of Bromide in an unsaturated soil. 2. Dispersion modeling. Water Resour. Res., 25, 1583–1589.
Jury, W.A., 1982: Simulation of solute transport using a transfer function. Water Resour. Res., 38, 363–368.
Jury, W.A. and G. Sposito, 1985: Field calibration and validation of solute transport models for the unsaturated zone. Soil Sci. Soc. Amer. J., 49, 1331–1441.
Reynolds, W.D., and D.E. Elrick, 1989: Steady infiltration from a ponded ring source: I. Theory. Soil Sci. Soc. Amer. J. (in press).
Simmons, C.S., 1982: A stochastic-convective transport representative of dispersion in one-dimensional porous media systems. Water Resour. Res., 18, 1193–1214.
Soil Survey Staff. U.S.D.A., 1960: Soil Classification, 7th approximation. U.S. Government printing office, Washington, D.C. 265 p.
Topp, G.C., J.L. Davis, and A.P. Annam, 1980: Electromagnetic determination of soil water content: Measurement of coaxial transmission lines. Water Resour. Res., 16,574–582.
White, R.E., J.S. Dyson, R.A. Haugh, W.A. Jury, and G. Sposito, 1986: A transfer function model of solute transport through soil, 2. Illustrative applications. Water Resour. Res., 22, 248–254.
White, I., and M.J. Sully, 1987: Macroscopic and microscopic capillary length and time scales from field infiltration. Water Resourc. Res., 23,1514–1522.
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© 1990 Birkhäuser Verlag Basel
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Kachanoski, R.G., Hamlin, C., van Wesenbeeck, I.J. (1990). Spatial Variability of Water and Solute Flux in a Layered Soil. In: Roth, K., Jury, W.A., Flühler, H., Parker, J.C. (eds) Field-Scale Water and Solute Flux in Soils. Monte Verità. Birkhäuser Basel. https://doi.org/10.1007/978-3-0348-9264-3_6
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DOI: https://doi.org/10.1007/978-3-0348-9264-3_6
Publisher Name: Birkhäuser Basel
Print ISBN: 978-3-0348-9969-7
Online ISBN: 978-3-0348-9264-3
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