Two-Dimensional Dual-Permeability Analyses of a Bromide Tracer Experiment on a Tile-Drained Field

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F07%3A01137082" target="_blank" >RIV/68407700:21110/07:01137082 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Two-Dimensional Dual-Permeability Analyses of a Bromide Tracer Experiment on a Tile-Drained Field
Original language description
Preferential flow has been hypothesized as an important factor for chemical leaching from tile-drained agricultural fields with structured soils originating from glacial till sediments. The objective of this paper was to analyze the tile outflow and leaching patterns using a two-dimensional dual-permeability and a standard approach for comparison. Simulated drainage rates and Br-effluent concentrations were made comparable with collector data from a field experiment by weighing results for irrigated andnonirrigated plots according to their area fractions. Results from the dual-permeability analyses suggest that conditions at the soil surface, near the water table, and of the field-scale mixing are significantly affecting leaching patterns, in additionto local nonequilibrium effects. The description of preferential flow toward tile drain could be strongly improved with the 2D-DPERM compared with the 2D-SPM.
Czech name
Analýza bromidového experimentu na ploše s drenážním systémem pomocí dvourozměrného modelu duální permeability
Czech description
Analýza bromidového experimentu na ploše s drenážním systémem pomocí dvourozměrného modelu duální permeability

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DA - Hydrology and limnology
OECD FORD branch
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Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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