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dc.contributor.author
Hadad, Martín Ariel
dc.contributor.author
Roig Junent, Fidel Alejandro
dc.contributor.author
Boninsegna, Jose Armando
dc.contributor.author
Paton, Daniel
dc.date.available
2016-03-22T17:39:28Z
dc.date.issued
2014-12
dc.identifier.citation
Hadad, Martín Ariel; Roig Junent, Fidel Alejandro; Boninsegna, Jose Armando; Paton, Daniel; Age effects on the climatic signal in Araucaria araucana from xeric sites in Patagonia, Argentina; Taylor & Francis; Plant Ecology & Diversity; 8; 3; 12-2014; 343-351
dc.identifier.issn
1755-0874
dc.identifier.uri
http://hdl.handle.net/11336/4904
dc.description.abstract
Background: At different cambial ages, trees experience changes in their structure and interactions with environmental conditions. Reciprocal mechanisms between tree age and physical resources, photosynthetic rates, and xylem production may influence hydraulic resistance and plant water stress. However, it is yet uncertain how these mechanisms are associated with changes in growth sensitivity to biophysical drivers, especially climate. Aim: To establish age-associated climate - growth relationships in growth rings of Araucaria araucana trees from the temperate xeric zones of northern Patagonia, Argentina. Methods: We analysed the growth in 211 A. araucana trees from four sampling sites, in three age classes: young (≤120 years), mature (121-275 years), and old (≥276 years). We explored the correlations between the signal strength of tree growth and climate, based on comparisons between each age-class chronology and monthly mean surface air temperature, total precipitation, and the Southern Annular Mode (SAM) index. Results: The young trees showed higher correlations when their growth was compared with precipitation, air temperature, and the SAM index during austral spring and summer months of the same year. In contrast, growth in mature and old trees showed higher correlations with summer temperatures of the previous growing season. Conclusions: The sensitivity of the radial-growth response of A. araucana to climate varies with age and is strongest in the rings of young trees.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Tree-Ring
dc.subject
Age Class
dc.subject
Dendroclimatology
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Forest-Steppe Ecotone
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Pehuén
dc.subject.classification
Ciencias de las Plantas, Botánica
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Age effects on the climatic signal in Araucaria araucana from xeric sites in Patagonia, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
8
dc.journal.number
3
dc.journal.pagination
343-351
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Hadad, Martín Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Roig Junent, Fidel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Boninsegna, Jose Armando. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Paton, Daniel. Universidad Autónoma de Madrid; España
dc.journal.title
Plant Ecology & Diversity
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/17550874.2014.980350
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/17550874.2014.980350
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1080/17550874.2014.980350


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