The relationship between soil moisture and soil water repellency persistence in hydrophobic soils
dc.contributor.author | Bayad, M | |
dc.contributor.author | Chau, Henry | |
dc.contributor.author | Trolove, S | |
dc.contributor.author | Moir, James | |
dc.contributor.author | Condron, L | |
dc.contributor.author | Bouray, M | |
dc.date.accessioned | 2021-01-13T01:46:31Z | |
dc.date.available | 2020-08-19 | |
dc.date.issued | 2020-09 | |
dc.date.submitted | 2020-08-14 | |
dc.description.abstract | In 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. | |
dc.format.extent | 12 pages | |
dc.identifier | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000580045300001&DestLinkType=FullRecord&DestApp=WOS_CPL | |
dc.identifier.doi | 10.3390/W12092322 | |
dc.identifier.eissn | 2073-4441 | |
dc.identifier.issn | 2073-4441 | |
dc.identifier.other | OD7RD (isidoc) | |
dc.identifier.uri | https://hdl.handle.net/10182/13210 | |
dc.language.iso | en | |
dc.publisher | MDPI | |
dc.relation | The original publication is available from MDPI - https://doi.org/10.3390/W12092322 - http://dx.doi.org/10.3390/w12092322 | |
dc.relation.isPartOf | Water | |
dc.relation.uri | https://doi.org/10.3390/W12092322 | |
dc.rights | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. | |
dc.rights.ccname | Attribution | |
dc.rights.ccuri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject | soil water repellency | |
dc.subject | soil moisture | |
dc.subject | soil carbon | |
dc.subject | soil texture | |
dc.subject.anzsrc | ANZSRC::0503 Soil Sciences | |
dc.subject.anzsrc | ANZSRC::080110 Simulation and Modelling | |
dc.subject.anzsrc | ANZSRC::070104 Agricultural Spatial Analysis and Modelling | |
dc.subject.anzsrc | ANZSRC::079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.) | |
dc.subject.anzsrc | ANZSRC::05 Environmental Sciences | |
dc.title | The relationship between soil moisture and soil water repellency persistence in hydrophobic soils | |
dc.type | Journal Article | |
lu.contributor.unit | LU | |
lu.contributor.unit | LU|Agriculture and Life Sciences | |
lu.contributor.unit | LU|Agriculture and Life Sciences|SOILS | |
lu.contributor.unit | LU|Research Management Office | |
lu.contributor.unit | LU|Research Management Office|OLD QE18 | |
lu.contributor.unit | LU|Research Management Office|OLD PE20 | |
lu.identifier.orcid | 0000-0002-9411-9816 | |
lu.identifier.orcid | 0000-0001-6677-3901 | |
pubs.article-number | 2322 | |
pubs.issue | 9 | |
pubs.notes | Article belongs to the Special Issue: Soil Water Repellency | |
pubs.publication-status | Published | |
pubs.publisher-url | http://dx.doi.org/10.3390/w12092322 | |
pubs.volume | 12 |
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