Recurrent Ponded infiltration into structured soil: A magnetic resonance imaging studyRecurrent Ponded infiltration into structured soil: A magnetic resonance imaging study
Result description
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.
Keywords
Computed x-ray tomographyImage analysisInfiltrationMagnetic resonance imagingUndisturbed soil samplesheterogeneity
The result's identifiers
Result code in IS VaVaI
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Recurrent Ponded infiltration into structured soil: A magnetic resonance imaging studyRecurrent Ponded infiltration into structured soil: A magnetic resonance imaging study
Original language description
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.
Czech name
—
Czech description
—
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DA - Hydrology and limnology
OECD FORD branch
—
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Water Resources Research
ISSN
0043-1397
e-ISSN
—
Volume of the periodical
39
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
"21-1"-"21-12"
UT code for WoS article
—
EID of the result in the Scopus database
—
Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
DA - Hydrology and limnology
Year of implementation
2003