Analýza bromidového experimentu na ploše s drenážním systémem pomocí dvourozměrného modelu duální permeability

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

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

2007

Kód důvěrnosti údajů

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

Název periodika

Vadose Zone Journal

ISSN

1539-1663

e-ISSN

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Svazek periodika

6

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

651-667

Kód UT WoS článku

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EID výsledku v databázi Scopus

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