About: A comparison of measurement techniques for determining unsaturated soil hydraulic properties

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Using several test methods, unsaturated and saturated soil hydraulic properties were determined adn compared for three uniform sandy soils at adjacent field sites. Drying soil-water retention curves were measured on undisturbed soil specimens using a pressure plate apparatus, and wtting soil-water retention curves of disturbed specimens were measured via capillary rise experiments in the laboratory. The saturated hydraulic conductivities (Ks) were measured in situ with a Guelph in -situ cone permeameterand in the laboratory with falling hed tests. Finally, to analyze transient flow data from in - situ cone permeameter and laboratry multistep outflow/inflow experiments, parameter optimization techniques were used to simultaneously estimate the drying a nd wetting soil-water retention and hydraulic conductivity curves. Ks values from all test methods were within an order of magnitude of each other at each site and, as expected, trended with bulk density. The Quelph permeameter generally yielded the high Using several test methods, unsaturated and saturated soil hydraulic properties were determined adn compared for three uniform sandy soils at adjacent field sites. Drying soil-water retention curves were measured on undisturbed soil specimens using a pressure plate apparatus, and wtting soil-water retention curves of disturbed specimens were measured via capillary rise experiments in the laboratory. The saturated hydraulic conductivities (Ks) were measured in situ with a Guelph in -situ cone permeameterand in the laboratory with falling hed tests. Finally, to analyze transient flow data from in - situ cone permeameter and laboratry multistep outflow/inflow experiments, parameter optimization techniques were used to simultaneously estimate the drying a nd wetting soil-water retention and hydraulic conductivity curves. Ks values from all test methods were within an order of magnitude of each other at each site and, as expected, trended with bulk density. The Quelph permeameter generally yielded the high (en)
Title	A comparison of measurement techniques for determining unsaturated soil hydraulic properties A comparison of measurement techniques for determining unsaturated soil hydraulic properties (en)
skos:prefLabel	A comparison of measurement techniques for determining unsaturated soil hydraulic properties A comparison of measurement techniques for determining unsaturated soil hydraulic properties (en)
skos:notation	RIV/60460709:41210/03:00005381!RIV/2004/MSM/412104/N
http://linked.open.../vavai/riv/strany	41-48
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 412100004)
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Kodešová, Radka
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Česká zemědělská univerzita v Praze / Fakulta agrobiologie, potravinových a přírodních zdrojů
http://linked.open...dnocenehoVysledku	596817
http://linked.open...ai/riv/idVysledku	RIV/60460709:41210/03:00005381
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cone permeameter;Guelph permeameter; falling head; multistep outflow; pressure plate, unsaturated soil hydraulic properties; inverse solution; field studies (en)
http://linked.open.../riv/klicoveSlovo	inverse solution Guelph permeameter pressure plate Cone permeameter falling head unsaturated soil hydraulic properties field studies multistep outflow
http://linked.open...ontrolniKodProRIV	[E848BD74A167]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Sborník - Hydrologie půdy v malém povodí
http://linked.open...in/vavai/riv/obor	DF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
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http://linked.open...UplatneniVysledku	2003
http://linked.open...iv/tvurceVysledku	Kodešová, Radka Gribb, M. M.
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2003-10-15 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20412100004
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Ústav pro hydrodynamiku AV ČR
https://schema.org/isbn	80-02-01586-X
http://localhost/t...ganizacniJednotka	41210

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