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dc.contributor.authorVero, Sara E.
dc.contributor.authorHealy, Mark G.
dc.contributor.authorHenry, Tiernan
dc.contributor.authorCreamer, Rachel E.
dc.contributor.authorIbrahim, Tristan G.
dc.contributor.authorForrestal, Patrick J.
dc.contributor.authorRichards, Karl G.
dc.contributor.authorFenton, Owen
dc.identifier.citationVero, S.E., Healy, M.G., Henry, T., Creamer, R.E., Ibrahim, T.G., Forrestal, P.J., Richards, K.G., Fenton, O. (2016). A methodological framework to determine optimum durations for the construction of soil water characteristic curves using centrifugation. Irish Journal of Agricultural and Food Research, 55(2), pp. 91-99, doi:10.1515/ijafr-2016-0009en_IE
dc.description.abstractDuring laboratory assessment of the soil water characteristic curve (SWCC), determining equilibrium at various pressures, is challenging. This study establishes a methodological framework to identify appropriate experimental duration at each pressure step for construction of SWCCs via centrifugation. Three common temporal approaches to equilibrium, (24, 48 and 72 h) are examined, for a grassland and arable soil. The framework highlighted differences in equilibrium duration between the two soils. For both soils, the 24-h treatment significantly overestimated saturation. For the arable site, no significant difference was observed between the 48 and 72-h treatments. Hence, a 48-h treatment was sufficient to determine effective equilibrium. For the grassland site, the 48 and 72-h treatments differed significantly. This highlights that a more prolonged duration is necessary for some soils to conclusively determine that effective equilibrium has been reached. This framework can be applied to other soils to determine the optimum centrifuge durations for SWCC construction.en_IE
dc.publisherDe Gruyter Openen_IE
dc.relation.ispartofIrish Journal Of Agriculture And Food Researchen
dc.subjectpF curveen_IE
dc.subjectSoil water characteristic curveen_IE
dc.subjectSoil characteristic curveen_IE
dc.titleA methodological framework to determine optimum durations for the construction of soil water characteristic curves using centrifugationen_IE
dc.local.contactMark Healy, Room Eng-1038, Civil Engineering, Col Of Engineering & Informatics, Nui Galway. 5364 Email:

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