Hydraulic properties of soil cores from untrafficked and trafficked areas

dc.contributor.author Mousli, M. Z.
dc.contributor.author Horton, R.
dc.contributor.author Horton, Robert
dc.contributor.author Ankeny, M. D.
dc.contributor.author Kiuchi, M.
dc.contributor.department Agronomy
dc.date 2018-01-30T00:06:05.000
dc.date.accessioned 2020-06-29T23:02:30Z
dc.date.available 2020-06-29T23:02:30Z
dc.date.embargo 2018-01-29
dc.date.issued 1992
dc.description.abstract <p>The hydraulic conductivity is an important soil parameter that is both difficult and time consuming to measure directly. Several methods have been proposed to estimate soil hydraulic conductivity indirectly. This paper focuses on one method of predi.:ting hydraulic conductivity from knowledge of the soil water retention curve. Water retention curves were measured for 15 undisturbed soil cores. Unsaturated hydraulic conductivity of the same 15 soil cores also was determined directly by using unit gradient measurements. An equation was fitted to each of the retention curves, and a procedure using the fitting parameters was implemented to predict hydraulic conductivity of each core. Predicted and observed hydraulic conductivities are compared. The procedure describes hydraulic conductivity relationships better when observed values of unsaturated hydraulic conductivity are included in the curve fitting process, than when the saturated hydraulic conductivity alone is used as a matching point. Analysis of a data set taken from the literature indicates that observed air permeabilities may also be useful for estimating the unsaturated hydraulic conductivity.</p>
dc.description.comments <p>This proceeding was published as Mousli, M. Z., R. Horton, M. D. Ankeny, and M. Kiuchi. 1992. Hydraulic properties of soil cores from untrafficked and trafficked areas. In: M. Th. Van Genuchten et al. (eds.) Proc. of International Workshop on Indirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils pp. 685-692. U. S. Salinity Lab, Riverside, CA.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_conf/73/
dc.identifier.articleid 1069
dc.identifier.contextkey 11440509
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_conf/73
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4416
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_conf/73/1989_Horton_HydraulicProperties001.PDF|||Sat Jan 15 01:46:03 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Hydrology
dc.subject.disciplines Soil Science
dc.title Hydraulic properties of soil cores from untrafficked and trafficked areas
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication d3fb0917-6868-417e-9695-a010896cfafa
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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