Recurrent Ponded infiltration into structured soil: A magnetic resonance imaging studyRecurrent Ponded infiltration into structured soil: A magnetic resonance imaging study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F03%3A01097209" target="_blank" >RIV/68407700:21110/03:01097209 - 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

Recurrent Ponded infiltration into structured soil: A magnetic resonance imaging studyRecurrent Ponded infiltration into structured soil: A magnetic resonance imaging study

Popis výsledku v původním jazyce

Recurrent ponded infiltration (RPI) was applied to two undisturbed samples (5.4-cm diameter, 9-cm height) of coarse sandy loam (Korkusova Huť, CR). The water distribution within the samples during RPI was monitored using Magnetic Resonance Imaging (MRI);the soil internal structure was visualized by X-ray Computed Tomography (CT). Preferential flow and a decrease of the steady-state infiltration rate between two successive infiltrations of RPI are typical for the soil studied. During the MRI-monitored experiment, these phenomena were pronounced only in one sample, which facilitated their linking to specific features in the MRI results; the flow rate decrease was related to a reduction of the MRI-detected water content and a change of the spectrum of T1(a characteristic related to the water surface-to-volume ratio). The MRI methods employed could detect water in low-density regions, and thereby captured potential preferential pathways; however, 1D MRI demonstrated that some results ma.

Název v anglickém jazyce

Recurrent Ponded infiltration into structured soil: A magnetic resonance imaging studyRecurrent Ponded infiltration into structured soil: A magnetic resonance imaging study

Popis výsledku anglicky

Recurrent ponded infiltration (RPI) was applied to two undisturbed samples (5.4-cm diameter, 9-cm height) of coarse sandy loam (Korkusova Huť, CR). The water distribution within the samples during RPI was monitored using Magnetic Resonance Imaging (MRI);the soil internal structure was visualized by X-ray Computed Tomography (CT). Preferential flow and a decrease of the steady-state infiltration rate between two successive infiltrations of RPI are typical for the soil studied. During the MRI-monitored experiment, these phenomena were pronounced only in one sample, which facilitated their linking to specific features in the MRI results; the flow rate decrease was related to a reduction of the MRI-detected water content and a change of the spectrum of T1(a characteristic related to the water surface-to-volume ratio). The MRI methods employed could detect water in low-density regions, and thereby captured potential preferential pathways; however, 1D MRI demonstrated that some results ma.

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

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

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Water Resources Research

ISSN

0043-1397

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

"21-1"-"21-12"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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