Automated set-up designed to measure hydraulic parameters in heterogeneous soil close to saturation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F02%3A01083780" target="_blank" >RIV/68407700:21110/02:01083780 - 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

Automated set-up designed to measure hydraulic parameters in heterogeneous soil close to saturation

Popis výsledku v původním jazyce

Experiments were conducted on large undisturbed soil samples to measure hydraulic conductivity function directly. As a next stage, an enhanced set-up with fully automated data acquisition was developed to allow long infiltration-outflow experiments undervariable saturated conditions. To control the upper boundary condition the tension infiltration disk is used. Continuous weighing of the sample during the experiment monitors changes in the soil water content. For undisturbed soil sample of coarse sandyloam, a sequence of experimental runs was performed, each represented by a constant suction pressure head applied to the soil surface. All experimental runs show several noticeable stages, the bulk soil water content changes during those stages are presented here. Automation of the experimental set-up allowed the extension of the experiment duration and improved the accuracy of the data. Because of the long experiment duration, remarkable phenomenons were observed.

Název v anglickém jazyce

Automated set-up designed to measure hydraulic parameters in heterogeneous soil close to saturation

Popis výsledku anglicky

Experiments were conducted on large undisturbed soil samples to measure hydraulic conductivity function directly. As a next stage, an enhanced set-up with fully automated data acquisition was developed to allow long infiltration-outflow experiments undervariable saturated conditions. To control the upper boundary condition the tension infiltration disk is used. Continuous weighing of the sample during the experiment monitors changes in the soil water content. For undisturbed soil sample of coarse sandyloam, a sequence of experimental runs was performed, each represented by a constant suction pressure head applied to the soil surface. All experimental runs show several noticeable stages, the bulk soil water content changes during those stages are presented here. Automation of the experimental set-up allowed the extension of the experiment duration and improved the accuracy of the data. Because of the long experiment duration, remarkable phenomenons were observed.

Druh

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

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Journal of Hydrology and Hydromechanics

ISSN

0042-790X

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

11

Strana od-do

247-257

Kód UT WoS článku

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EID výsledku v databázi Scopus

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