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dc.contributor.authorOwen, Nick Aen
dc.contributor.authorChoncubhair, Órlaith Níen
dc.contributor.authorMales, Jamieen
dc.contributor.authorDel Real Laborde, José Ignacioen
dc.contributor.authorRubio-Cortés, Ramónen
dc.contributor.authorGriffiths, Howarden
dc.contributor.authorLanigan, Garyen
dc.date.accessioned2019-08-08T09:47:58Z
dc.date.available2019-08-08T09:47:58Z
dc.date.issued2016-02en
dc.identifier.issn0140-7791
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/295433
dc.description.abstractMass and energy fluxes were measured over a field of Agave tequilana in Mexico using eddy covariance (EC) methodology. Data were gathered over 252 d, including the transition from wet to dry periods. Net ecosystem exchanges (FN,EC ) displayed a crassulacean acid metabolism (CAM) rhythm that alternated from CO2 sink at night to CO2 source during the day, and partitioned canopy fluxes (FA,EC ) showed a characteristic four-phase CO2 exchange pattern. Results were cross-validated against diel changes in titratable acidity, leaf-unfurling rates, energy exchange fluxes and reported biomass yields. Projected carbon balance (g C m(-2)  year(-1) , mean ± 95% confidence interval) indicated the site was a net sink of -333 ± 24, of which contributions from soil respiration were +692 ± 7, and FA,EC was -1025 ± 25. EC estimated biomass yield was 20.1 Mg (dry) ha(-1)  year(-1) . Average integrated daily FA,EC was -234 ± 5 mmol CO2  m(-2)  d(-1) and persisted almost unchanged after 70 d of drought conditions. Regression analyses were performed on the EC data to identify the best environmental predictors of FA . Results suggest that the carbon acquisition strategy of Agave offers productivity and drought resilience advantages over conventional semi-arid C3 and C4 bioenergy candidates.
dc.description.sponsorshipRIRDC (Australia) for funding the experiment
dc.languageengen
dc.language.isoenen
dc.publisherWiley
dc.subjectAgave tequilanaen
dc.subjectCAMen
dc.subjectbioenergyen
dc.subjectbiomassen
dc.subjectclimate change adaptationen
dc.subjectcrassulacean acid metabolismen
dc.subjectecophysiologyen
dc.subjecteddy covarianceen
dc.subjecteddy fluxen
dc.subjectrenewable energyen
dc.subjectAcidsen
dc.subjectAgaveen
dc.subjectBiomassen
dc.subjectCarbonen
dc.subjectCarbon Dioxideen
dc.subjectEcosystemen
dc.subjectGasesen
dc.subjectModels, Biologicalen
dc.subjectPlant Leavesen
dc.subjectRegression Analysisen
dc.subjectReproducibility of Resultsen
dc.subjectRespirationen
dc.subjectSoilen
dc.subjectSpectrum Analysisen
dc.subjectThermodynamicsen
dc.subjectWateren
dc.titleEddy covariance captures four-phase crassulacean acid metabolism (CAM) gas exchange signature in Agave.en
dc.typeArticle
prism.endingPage309
prism.issueIdentifier2en
prism.publicationDate2016en
prism.publicationNamePlant Cell Environen
prism.startingPage295
prism.volume39en
dc.identifier.doi10.17863/CAM.42489
dcterms.dateAccepted2015-07-05en
rioxxterms.versionofrecord10.1111/pce.12610en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-02en
dc.contributor.orcidGriffiths, Howard [0000-0002-3009-6563]
dc.identifier.eissn1365-3040
rioxxterms.typeJournal Article/Reviewen


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