2D Dual-permeability Analyses of Bromide Field Tracer Experiment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F06%3A00125060" target="_blank" >RIV/68407700:21110/06:00125060 - 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
2D Dual-permeability Analyses of Bromide Field Tracer Experiment
Original language description
Preferential flow was hypothesized as important factor for chemical leaching from tiledrained agricultural fields with structured soils originating from glacial till sediments. Although tile water outflow peaks could somehow be reproduced, single- porosity models failed and dual-porosity approaches were limited in explaining both, the field-scale affected tile drain leaching patterns and the plotscale residual bromide distribution. The objective was to analyze the tile outflow and leaching patterns comparing single- and dual-domain numerical models for high and low between-domain transfer and formulation of solute boundary conditions. The application of bromide in dissolved form with the irrigation water yielded initially larger preferential outflow concentrations than application of bromide only in the soil matrix surface layer. The mass transfer rate distribution suggests most intensive redistribution between domains near the water table and in the topsoil.
Czech name
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Czech description
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Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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