Geophysical Methods in a Study of the Infiltration Process in Clay Soil

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F06%3A00126714" target="_blank" >RIV/68407700:21110/06:00126714 - 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

Geophysical Methods in a Study of the Infiltration Process in Clay Soil

Popis výsledku v původním jazyce

Within the framework of the research of preferential flow in clay-loam soil at Valecov site in Bohemo-Moravian highland, field ponded infiltration experiment monitored by TDR and resistivity tomography. TDR method was able to detect slow water content increase throughout the infiltration; however, it was not able to detect all the water added to the soil right from the start of the experiment. The resistivity tomography was performed using ARES system. The results imply that the measuring technique in its present state is not suitable for the clay soil. The outputs of the geophysical methods were found inconclusive. At the end of the infiltration experiment, a dye tracer and excavation was used to visualize the flow paths. The tracer was found to infiltrate about 4 times deeper than predicted based on the tracer volume, assuming flow in fully saturated soil. The findings from the field measurements were validated in laboratory experiments using undisturbed samples of the soil.

Název v anglickém jazyce

Geophysical Methods in a Study of the Infiltration Process in Clay Soil

Popis výsledku anglicky

Within the framework of the research of preferential flow in clay-loam soil at Valecov site in Bohemo-Moravian highland, field ponded infiltration experiment monitored by TDR and resistivity tomography. TDR method was able to detect slow water content increase throughout the infiltration; however, it was not able to detect all the water added to the soil right from the start of the experiment. The resistivity tomography was performed using ARES system. The results imply that the measuring technique in its present state is not suitable for the clay soil. The outputs of the geophysical methods were found inconclusive. At the end of the infiltration experiment, a dye tracer and excavation was used to visualize the flow paths. The tracer was found to infiltrate about 4 times deeper than predicted based on the tracer volume, assuming flow in fully saturated soil. The findings from the field measurements were validated in laboratory experiments using undisturbed samples of the soil.

Druh

D - Stať ve sborníku

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F04%2F0663" target="_blank" >GA103/04/0663: Vliv makropórů v půdách Českomoravské vrchoviny na vyplavování dusičnanů do podzemních vod</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

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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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