Journal article
Soil water residence time and solute uptake 2. Dye tracing and preferential flow predictions.
Journal of Hydrology, Vol.62(1-4), pp.279-285
1983
Abstract
The occurrence of preferential flow, by-passing soil peds, is predicted from the occurrence of rainfall intensities in excess of pedal sorption; depth of preferential tracer penetration is estimated from the displacement of this excess through a small operational volume of preferential flow, θf. θf-values estimated from column drainage experiments to lie between 0.01 and 0.03 cm3 cm-3 for rainfall intensities from 1 to 10 mm hr.-1, increasing to ∼ 0.1 cm3 cm-3 at saturation. Observed tracer penetration is compared with predicted tracer penetration and mean profile θf-values are calculated. The preferential flow calculations discussed provide a useful approximation for characterising field tracer behaviour.
Details
- Title
- Soil water residence time and solute uptake 2. Dye tracing and preferential flow predictions.
- Authors/Creators
- S.T. Trudgill (Author/Creator) - University of SheffieldA.M. Pickles (Author/Creator) - University of SheffieldK.R.J. Smettem (Author/Creator)
- Publication Details
- Journal of Hydrology, Vol.62(1-4), pp.279-285
- Publisher
- Elsevier B.V.
- Identifiers
- 991005540138507891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.60 Herbicides, Pesticides & Ground Poisoning
- 3.60.812 Pesticide Degradation
- Web Of Science research areas
- Engineering, Civil
- Geosciences, Multidisciplinary
- Water Resources
- ESI research areas
- Engineering