Neutron radiography of preferential flow in near-saturated soil sample
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00235551" target="_blank" >RIV/68407700:21110/15:00235551 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21720/15:00235551
Result on the web
<a href="http://www.musis-workshop2015.uni-hannover.de/fileadmin/musis-workshop2015/MUSIS_2015_BOOKLET-8.pdf" target="_blank" >http://www.musis-workshop2015.uni-hannover.de/fileadmin/musis-workshop2015/MUSIS_2015_BOOKLET-8.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Neutron radiography of preferential flow in near-saturated soil sample
Original language description
A number of infiltration experiments has supplied the evidence that the validity of standard Richards theory of the flow in porous media has to be questioned in case of natural soils. Under near-saturated conditions the preferential flow and temporal instability of the saturated hydraulic conductivity has been detected. Water flow in an undisturbed sample of coarse sandy loam from Cambisol series containing naturally developed vertical macropore was investigated during recurrent ponding infiltration (RPI) experiments. Experiment consisted of two ponded infiltration runs, each followed by draining of the sample. Before the infiltration, the threedimensional neutron tomography (NT) image of the dry sample was acquired. The propagation of wetting front was documented by a sequence of neutron radiography (NR) images. Analysis of NR showed that water moved preferentially through the macropore at the approximate speed of 2 mm/sec, which was significantly faster than the 0.3 mm/sec wetting ad
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
DA - Hydrology and limnology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-03691S" target="_blank" >GA14-03691S: Isothermal and non-isothermal water flow and solute transport in near-saturated porous media</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů