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dc.contributor.authorBayad, Mohameden
dc.contributor.authorChau, Henryen
dc.contributor.authorTrolove, S.en
dc.contributor.authorMoir, James L.en
dc.contributor.authorCondron, Leo M.en
dc.contributor.authorBouray, Moussaen
dc.date.accessioned2021-01-13T01:46:31Z
dc.date.available2020-08-19en
dc.date.issued2020-09en
dc.date.submitted2020-08-14en
dc.identifier.issn2073-4441en
dc.identifier.urihttps://hdl.handle.net/10182/13210
dc.description.abstractIn this work, we modelled the response of soil water repellency (SWR) persistence to the decrease in moisture in drying soils, and we explored the implication of soil particle size distribution and specific surface area on the SWR severity and persistence. A new equation for the relationship between SWR persistence and soil moisture (θ) is described in this paper. The persistence of SWR was measured on ten different hydrophobic soils using water drop penetration time (WDPT) at decreasing levels of gravimetric water content. The actual repellency persistence showed a sigmoidal response to soil moisture decrease, where Rₐ(θ) = Rₚ/1 + eδ⁽θ⁻θ𝒸⁾. The suggested equation enables one to model the actual SWR persistence (Rₐ) using θ, the potential repellency (Rₚ) and two characteristic parameters related to the shape of the response curve. The two parameters are the critical soil moisture θ𝒸, where the Rₐ increase rate reaches its maximum, and the parameter δ affecting the steepness of the curve at the inflexion point of the sigmoidal curve. Data shows that both soil carbon and texture are controlling the potential SWR in New Zealand pastures.en
dc.format.extent12en
dc.language.isoenen
dc.publisherMDPIen
dc.relationThe original publication is available from - MDPI - https://doi.org/10.3390/W12092322en
dc.relation.urihttps://doi.org/10.3390/W12092322en
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland.en
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectsoil water repellencyen
dc.subjectsoil moistureen
dc.subjectsoil carbonen
dc.subjectsoil textureen
dc.titleThe relationship between soil moisture and soil water repellency persistence in hydrophobic soilsen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
dc.identifier.doi10.3390/W12092322en
dc.subject.anzsrc0503 Soil Sciencesen
dc.subject.anzsrc080110 Simulation and Modellingen
dc.subject.anzsrc070104 Agricultural Spatial Analysis and Modellingen
dc.subject.anzsrc079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)en
dc.subject.anzsrc05 Environmental Sciencesen
dc.relation.isPartOfWateren
pubs.issue9en
pubs.notesArticle belongs to the Special Issue: Soil Water Repellencyen
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/SOILS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/PE20
pubs.organisational-group/LU/Research Management Office/QE18
pubs.publication-statusPublisheden
pubs.volume12en
dc.identifier.eissn2073-4441en
dc.rights.licenceAttributionen
lu.identifier.orcid0000-0002-9411-9816
lu.identifier.orcid0000-0001-6677-3901
lu.identifier.orcid0000-0002-3082-994X
pubs.article-number2322en


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