About: Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Disk infiltrometers are established as standard devices for measuring soil surface hydraulic properties. This study explored the validity of a semiempirical approach that is used to obtain estimates of the near-saturated hydraulic conductivity from disk infiltrometer data. The approach was compared with two other estimation expressions. The analysis was based on three-dimensional numerical modeling of the infiltration process. The results of the validation procedure showed that the original expression performed best among the compared methods, but still failed for fine-textured soils and the selected Cambisols. The study showed that improved estimates, specifically for fine-textured soils and Cambisols, can be obtained by extending the original approach. This is achieved primarily (i) by using the modified van Genuchten parameterization of soil hydraulic functions, and (ii) by including a more representative set of soils in the objective function when optimizing the estimation formula. Disk infiltrometers are established as standard devices for measuring soil surface hydraulic properties. This study explored the validity of a semiempirical approach that is used to obtain estimates of the near-saturated hydraulic conductivity from disk infiltrometer data. The approach was compared with two other estimation expressions. The analysis was based on three-dimensional numerical modeling of the infiltration process. The results of the validation procedure showed that the original expression performed best among the compared methods, but still failed for fine-textured soils and the selected Cambisols. The study showed that improved estimates, specifically for fine-textured soils and Cambisols, can be obtained by extending the original approach. This is achieved primarily (i) by using the modified van Genuchten parameterization of soil hydraulic functions, and (ii) by including a more representative set of soils in the objective function when optimizing the estimation formula. (en)
Title	Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions (en)
skos:prefLabel	Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions (en)
skos:notation	RIV/68407700:21110/10:00168153!RIV11-GA0-21110___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA205/08/1174), Z(MSM6840770002)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Dohnal, Michal Dušek, Jaromír Vogel, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	263212
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/10:00168153
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	minidisk infiltrometer; hydraulic conductivity; Cambisols (en)
http://linked.open.../riv/klicoveSlovo	hydraulic conductivity minidisk infiltrometer Cambisols
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[4E677D2D0700]
http://linked.open...i/riv/nazevZdroje	Soil Science Society of America Journal
http://linked.open...in/vavai/riv/obor	DA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Hydrological fluxes in soil-plant-atmosphere system
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	74
http://linked.open...iv/tvurceVysledku	Dohnal, Michal Dušek, Jaromír Vogel, Tomáš
http://linked.open...ain/vavai/riv/wos	000277500600011
http://linked.open...n/vavai/riv/zamer	Revitalizace vodního systému krajiny a měst zatíženého významnými antropogenními změnami
issn	0361-5995
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	21110
is http://linked.open...avai/riv/vysledek of	Improving Hydraulic Conductivity Estimates from Minidisk Infiltrometer Measurements for Soils with Wide Pore-Size Distributions

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