2D Dual-permeability Analyses of Bromide Field Tracer Experiment

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

2D Dual-permeability Analyses of Bromide Field Tracer Experiment

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

2D Dual-permeability Analyses of Bromide Field Tracer Experiment

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Geophysical Research Abstracts: Volume 8, 2006

ISBN

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ISSN

1029-7006

e-ISSN

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Počet stran výsledku

1

Strana od-do

999

Název nakladatele

European Geosciences Union

Místo vydání

Strasbourg Ceres

Místo konání akce

Vídeň

Datum konání akce

2. 4. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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