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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
dc.subject Forest-steppe ecotone
dc.subject Pehuén
dc.subject.classification Ciencias de las Plantas, Botánica
dc.subject.classification Ciencias Biológicas
dc.subject.classification 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/10.1080/17550874.2014.980350
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/17550874.2014.980350


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)