Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/59090
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dc.contributor.authorvan Gorsel, Evaen
dc.contributor.authorWolf, Sebastianen
dc.contributor.authorCleverly, Jamesen
dc.contributor.authorIsaac, Peteren
dc.contributor.authorHaverd, Vanessaen
dc.contributor.authorEwenz, Cäciliaen
dc.contributor.authorArndt, Stefanen
dc.contributor.authorBeringer, Jasonen
dc.contributor.authorde Dios, Víctor Rescoen
dc.contributor.authorEvans, Bradly Jen
dc.contributor.authorGriebel, Anneen
dc.contributor.authorHutley, Lindsay Ben
dc.contributor.authorKeenan, Trevoren
dc.contributor.authorKljun, Nataschaen
dc.contributor.authorMacfarlane, Craigen
dc.contributor.authorMeyer, Wayne Sen
dc.contributor.authorMcHugh, Ianen
dc.contributor.authorPendall, Eliseen
dc.contributor.authorProber ,Suzanne Men
dc.contributor.authorSilberstein, Richarden
dc.date.accessioned2024-05-08T01:32:31Z-
dc.date.available2024-05-08T01:32:31Z-
dc.date.issued2016-11-01-
dc.identifier.citationBiogeosciences, 13(21), p. 5947-5964en
dc.identifier.issn1726-4189en
dc.identifier.issn1726-4170en
dc.identifier.urihttps://hdl.handle.net/1959.11/59090-
dc.description.abstract<p>As a result of climate change warmer temperatures are projected through the 21st century and are already increasing above modelled predictions. Apart from increases in the mean, warm/hot temperature extremes are expected to become more prevalent in the future, along with an increase in the frequency of droughts. It is crucial to better understand the response of terrestrial ecosystems to such temperature extremes for predicting land-surface feedbacks in a changing climate. While land-surface feedbacks in drought conditions and during heat waves have been reported from Europe and the US, direct observations of the impact of such extremes on the carbon and water cycles in Australia have been lacking. During the 2012/2013 summer, Australia experienced a record-breaking heat wave with an exceptional spatial extent that lasted for several weeks. In this study we synthesised eddy-covariance measurements from seven woodlands and one forest site across three biogeographic regions in southern Australia. These observations were combined with model results from BIOS2 (Haverd et al., 2013a, b) to investigate the effect of the summer heat wave on the carbon and water exchange of terrestrial ecosystems which are known for their resilience toward hot and dry conditions. We found that water-limited woodland and energy-limited forest ecosystems responded differently to the heat wave. During the most intense part of the heat wave, the woodlands experienced decreased latent heat flux (23 % of background value), increased Bowen ratio (154 %) and reduced carbon uptake (60 %). At the same time the forest ecosystem showed increased latent heat flux (151 %), reduced Bowen ratio (19 %) and increased carbon uptake (112 %). Higher temperatures caused increased ecosystem respiration at all sites (up to 139 %). During daytime all ecosystems remained carbon sinks, but carbon uptake was reduced in magnitude. The number of hours during which the ecosystem acted as a carbon sink was also reduced, which switched the woodlands into a carbon source on a daily average. Precipitation occurred after the first, most intense part of the heat wave, and the subsequent cooler temperatures in the temperate woodlands led to recovery of the carbon sink, decreased the Bowen ratio (65 %) and hence increased evaporative cooling. Gross primary productivity in the woodlands recovered quickly with precipitation and cooler temperatures but respiration remained high. While the forest proved relatively resilient to this short-term heat extreme the response of the woodlands is the first direct evidence that the carbon sinks of large areas of Australia may not be sustainable in a future climate with an increased number, intensity and duration of heat waves.</p>en
dc.languageenen
dc.publisherCopernicus GmbHen
dc.relation.ispartofBiogeosciencesen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleCarbon uptake and water use in woodlands and forests in southern Australia during an extreme heat wave event in the "angry Summer" of 2012/2013en
dc.typeJournal Articleen
dc.identifier.doi10.5194/bg-13-5947-2016en
dcterms.accessRightsUNE Greenen
local.contributor.firstnameEvaen
local.contributor.firstnameSebastianen
local.contributor.firstnameJamesen
local.contributor.firstnamePeteren
local.contributor.firstnameVanessaen
local.contributor.firstnameCäciliaen
local.contributor.firstnameStefanen
local.contributor.firstnameJasonen
local.contributor.firstnameVíctor Rescoen
local.contributor.firstnameBradly Jen
local.contributor.firstnameAnneen
local.contributor.firstnameLindsay Ben
local.contributor.firstnameTrevoren
local.contributor.firstnameNataschaen
local.contributor.firstnameCraigen
local.contributor.firstnameWayne Sen
local.contributor.firstnameIanen
local.contributor.firstnameEliseen
local.contributor.firstnameuzanne Men
local.contributor.firstnameRicharden
local.relation.isfundedbyARCen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailbevans31@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeGermanyen
local.format.startpage5947en
local.format.endpage5964en
local.peerreviewedYesen
local.identifier.volume13en
local.identifier.issue21en
local.access.fulltextYesen
local.contributor.lastnamevan Gorselen
local.contributor.lastnameWolfen
local.contributor.lastnameCleverlyen
local.contributor.lastnameIsaacen
local.contributor.lastnameHaverden
local.contributor.lastnameEwenzen
local.contributor.lastnameArndten
local.contributor.lastnameBeringeren
local.contributor.lastnamede Diosen
local.contributor.lastnameEvansen
local.contributor.lastnameGriebelen
local.contributor.lastnameHutleyen
local.contributor.lastnameKeenanen
local.contributor.lastnameKljunen
local.contributor.lastnameMacfarlaneen
local.contributor.lastnameMeyeren
local.contributor.lastnameMcHughen
local.contributor.lastnamePendallen
local.contributor.lastnameProberen
local.contributor.lastnameSilbersteinen
dc.identifier.staffune-id:bevans31en
local.profile.orcid0000-0001-6675-3118en
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local.identifier.unepublicationidune:1959.11/59090en
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local.title.maintitleCarbon uptake and water use in woodlands and forests in southern Australia during an extreme heat wave event in the "angry Summer" of 2012/2013en
local.relation.fundingsourcenotethe European Commission’s FP7 (Marie Curie International Outgoing Fellowship, grant 300083) and ETH Zurich, a Ramón y Cajal fellowship RYC-2012-10970, The Royal Society UK, grant IE110132.en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorvan Gorsel, Evaen
local.search.authorWolf, Sebastianen
local.search.authorCleverly, Jamesen
local.search.authorIsaac, Peteren
local.search.authorHaverd, Vanessaen
local.search.authorEwenz, Cäciliaen
local.search.authorArndt, Stefanen
local.search.authorBeringer, Jasonen
local.search.authorde Dios, Víctor Rescoen
local.search.authorEvans, Bradly Jen
local.search.authorGriebel, Anneen
local.search.authorHutley, Lindsay Ben
local.search.authorKeenan, Trevoren
local.search.authorKljun, Nataschaen
local.search.authorMacfarlane, Craigen
local.search.authorMeyer, Wayne Sen
local.search.authorMcHugh, Ianen
local.search.authorPendall, Eliseen
local.search.authorProber ,Suzanne Men
local.search.authorSilberstein, Richarden
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/756249a0-fb84-461d-badb-28b984acd1d2en
local.uneassociationNoen
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local.year.published2016en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/756249a0-fb84-461d-badb-28b984acd1d2en
local.fileurl.openpublishedhttps://rune.une.edu.au/web/retrieve/756249a0-fb84-461d-badb-28b984acd1d2en
local.subject.for20204104 Environmental managementen
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local.date.moved2024-05-08en
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School of Environmental and Rural Science
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