A Simple Correction Term to Model Infiltration in Water-Repellent Soils

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dc.contributor.authorAbou Najm, Majdi R.en
dc.contributor.authorStewart, Ryan D.en
dc.contributor.authorDi Prima, Simoneen
dc.contributor.authorLassabatere, Laurenten
dc.date.accessioned2023-01-09T13:22:53Zen
dc.date.available2023-01-09T13:22:53Zen
dc.date.issued2021-02-01en
dc.date.updated2023-01-02T02:38:01Zen
dc.description.abstractSoil water repellency can substantially alter hydrologic processes, particularly the ability of soils to infiltrate water. Water repellency often changes through time, making it difficult to simulate infiltration behaviors of water-repellent soils using standard models. Here, we propose a simple rate-based correction term that starts with a value of zero at the beginning of the infiltration process (t = 0) and asymptotically approaches 1 as time increases, thus simulating decreasing soil water repellency through time. The correction term can be used with any infiltration model. For this study, we selected a simple two-term infiltration equation and then, using two data sets of infiltration measurements conducted in soils with varying water repellency, compared model error with versus without the added term. The correction substantially reduced model error, particularly in more repellent soils. At the same time, the rate constant parameter introduced in the new model may be useful to better understand dynamics of soil water repellency and to provide more consistent interpretations of hydraulic properties in water-repellent soils.en
dc.description.versionAccepted versionen
dc.format.extent12 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN e2020WR028539 (Article number)en
dc.identifier.doihttps://doi.org/10.1029/2020WR028539en
dc.identifier.eissn1944-7973en
dc.identifier.issn0043-1397en
dc.identifier.issue2en
dc.identifier.orcidStewart, Ryan [0000-0002-9700-0351]en
dc.identifier.urihttp://hdl.handle.net/10919/113091en
dc.identifier.volume57en
dc.language.isoenen
dc.publisherAmerican Geophysical Unionen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000624603200041&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfireen
dc.subjecthydrophobicen
dc.subjectinfiltrationen
dc.subjectwater repellencyen
dc.subjectCOMPREHENSIVE MODELen
dc.subjectGLACIOFLUVIAL DEPOSITen
dc.subjectPREFERENTIAL FLOWen
dc.subjectIMPACTen
dc.subjectFORESTen
dc.subjectRUNOFFen
dc.titleA Simple Correction Term to Model Infiltration in Water-Repellent Soilsen
dc.title.serialWater Resources Researchen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/School of Plant and Environmental Sciencesen

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