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Potential of oak tree-ring chronologies from southern Portugal for climate reconstructions

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dc.contributor.authorLeal, Sofia
dc.contributor.authorCampelo, Filipe
dc.contributor.authorLuz, Ana Luísa
dc.contributor.authorCarneiro, Maria de Fátima
dc.date.accessioned2019-02-25T14:35:49Z
dc.date.available2019-02-25T14:35:49Z
dc.date.issued2015
dc.descriptionOriginal Articlept_PT
dc.description.abstractThe present work reports a first attempt to assemble long tree-ring chronologies from Portugal potentially useful for climate reconstructions. Three oak species (Quercus pyrenaica, Quercus faginea, and Quercus ilex) were sampled at three sites in southern Portugal to obtain tree-ring chronologies. The longest tree ring series covers 173 years extending back to 1840. Our tree-ring records show, depending on the site, moderate-to-high correlations with precipitation in different seasons (from r = 0.40, p < 0.01, to 0.81, p < 0.001) and temporal stability in the growth/climate relationship for two sites. Calibration-verification trials confirm the reliability of climate/growth models for climatic reconstructions back to periods represented by tree-ring records from these two sites. Regional precipitation for Alentejo can be estimated for the following seasons: April through August (calibration r2 = 0.24); September, from previous year, to July (calibration r2 = 0.65). The results are a promising kick-off for Portuguese dendroclimatology, since they represent a significant breakthrough in the Mediterranean region, especially for Iberian Peninsula, where there is a considerable lack of dendroclimatic reconstructions. Further efforts to extend the tree-ring records back in time using subfossil material should be undertakenpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDendrochronologia 35 (2015) 4–13pt_PT
dc.identifier.doihttp://dx.doi.org/10.1016/j.dendro.2015.05.003pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/17442
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionwww.elsevier.com/locate/dendropt_PT
dc.subjectdendrochronologiapt_PT
dc.subjectoakpt_PT
dc.subjectQuercuspt_PT
dc.subjectMediterraneanpt_PT
dc.titlePotential of oak tree-ring chronologies from southern Portugal for climate reconstructionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleDendrochronologiapt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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