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Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/9475
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dc.contributor.authorPalmer, Anthony Ren
dc.contributor.authorFuentes, Sigfredoen
dc.contributor.authorTaylor, Danielen
dc.contributor.authorMacinnis-Ng, Cateen
dc.contributor.authorZeppel, Melanieen
dc.contributor.authorYunusa, Isaen
dc.contributor.authorFebruary, Edmunden
dc.contributor.authorEamus, Dereken
dc.date.accessioned2012-02-21T10:53:00Z-
dc.date.issued2008-
dc.identifier.citationAustralian Journal of Botany, 56(7), p. 557-563en
dc.identifier.issn1444-9862en
dc.identifier.issn0067-1924en
dc.identifier.urihttps://hdl.handle.net/1959.11/9475-
dc.description.abstractTrends in global soil moisture are needed to inform models of soil-plant-atmosphere interactions. Predawn leaf water potential (Ψpd), a surrogate for soil moisture and an index of plant water stress, has been routinely collected in Australian forests, woodlands and savannas, but the associated leaf area index (LAI) has seldom been available to enable the preparation of a Ψpd on LAI relationship. Following an analysis of Ψpd and MODIS LAI data from Australian forests, woodlands and savannas, we identified patterns in Ψpd which provide an understanding of the role of soil-moisture status in controlling LAI. In the savanna of northern Australia, the MODIS LAI product had a basal value of 0.96 during the dry season as compared with a mean value of 2.5 for the wet season. The dry season value is equivalent to the LAI of the tree component and corresponds with ground-truthed LAI. Ψpd is lowest (more negative) during the height of the dry season (late October) at -2.5 MPa, and highest (-0.1 MPa) during the wet season (early March). We present two models which predict Ψpd from the MODIS LAI product. These may be useful surrogates for studying trends in soil moisture in highly seasonal climates and may contribute to climate change research.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAustralian Journal of Botanyen
dc.titleThe use of pre-dawn leaf water potential and MODIS LAI to explore seasonal trends in the phenology of Australian and southern African woodlands and savannasen
dc.typeJournal Articleen
dc.identifier.doi10.1071/BT08079en
dc.subject.keywordsEnvironmental Science and Managementen
local.contributor.firstnameAnthony Ren
local.contributor.firstnameSigfredoen
local.contributor.firstnameDanielen
local.contributor.firstnameCateen
local.contributor.firstnameMelanieen
local.contributor.firstnameIsaen
local.contributor.firstnameEdmunden
local.contributor.firstnameDereken
local.subject.for2008050299 Environmental Science and Management not elsewhere classifieden
local.subject.seo2008960699 Environmental and Natural Resource Evaluation not elsewhere classifieden
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.emailiyunusa@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20120208-091415en
local.publisher.placeAustraliaen
local.format.startpage557en
local.format.endpage563en
local.peerreviewedYesen
local.identifier.volume56en
local.identifier.issue7en
local.contributor.lastnamePalmeren
local.contributor.lastnameFuentesen
local.contributor.lastnameTayloren
local.contributor.lastnameMacinnis-Ngen
local.contributor.lastnameZeppelen
local.contributor.lastnameYunusaen
local.contributor.lastnameFebruaryen
local.contributor.lastnameEamusen
dc.identifier.staffune-id:iyunusaen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:9666en
dc.identifier.academiclevelAcademicen
local.title.maintitleThe use of pre-dawn leaf water potential and MODIS LAI to explore seasonal trends in the phenology of Australian and southern African woodlands and savannasen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorPalmer, Anthony Ren
local.search.authorFuentes, Sigfredoen
local.search.authorTaylor, Danielen
local.search.authorMacinnis-Ng, Cateen
local.search.authorZeppel, Melanieen
local.search.authorYunusa, Isaen
local.search.authorFebruary, Edmunden
local.search.authorEamus, Dereken
local.uneassociationUnknownen
local.year.published2008en
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