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Abstract
Climate and stands management have an effect on the process of wood formation via resource availability. To improve knowledge of wood quantity and physical structure, increment cores of ponderosa pine were taken in high- and low-density stands growing in Patagonia, Argentina. Microdensity profiles were performed on trees for which sapflow density (Qs) data were available over two consecutive years (2004 and 2005, dry and wet years, respectively). [ver mas...]
dc.contributor.authorMartinez Meier, Alejandro
dc.contributor.authorFernandez, Marí­a Elena
dc.contributor.authorDalla Salda, Guillermina
dc.contributor.authorGyenge, Javier Enrique
dc.contributor.authorLicata, Julián Andrés
dc.contributor.authorRozenberg, Philippe
dc.date.accessioned2017-10-26T17:31:58Z
dc.date.available2017-10-26T17:31:58Z
dc.date.issued2015-06
dc.identifier.issn0378-1127
dc.identifier.otherhttps://doi.org/10.1016/j.foreco.2015.02.021
dc.identifier.urihttp://hdl.handle.net/20.500.12123/1601
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0378112715000791
dc.description.abstractClimate and stands management have an effect on the process of wood formation via resource availability. To improve knowledge of wood quantity and physical structure, increment cores of ponderosa pine were taken in high- and low-density stands growing in Patagonia, Argentina. Microdensity profiles were performed on trees for which sapflow density (Qs) data were available over two consecutive years (2004 and 2005, dry and wet years, respectively). Conventional and non-conventional microdensity variables were analyzed in the segment of the microdensity profile where Qs was measured. Trees in the low-density stand showed a greater capacity for water transport than trees in the high-density stand, even if no constraints in the soil water availability were confirmed, as was the case for the wet year. Minimum and earlywood density were significantly higher in the high-density stand in several analyzed years. These differences were not reflected in mean density of the whole radial profile. The structural changes in physical wood properties in relation to silvicultural treatments appear to affect plant water status, even in the wet growing season: greater wood density in the first part of the tree-ring may contribute to the observed Qs decrease found in the high-density stand. This fact may lead trees to lack the coordinated mechanisms of response to drought observed in more xeric sites. The increase of wood density in the first part of the tree-ring in ponderosa pine could be not conducive to acclimation, exposing trees to an increasing “dilemma” facing drought.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceForest ecology and management 346 : 31-40. (June 2015)eng
dc.subjectPinus Ponderosaes_AR
dc.subjectArboles Forestaleses_AR
dc.subjectForest Treeseng
dc.subjectLignificación
dc.subjectLignificationeng
dc.subjectAgua
dc.subjectWatereng
dc.subjectSilvicultura
dc.subjectSilvicultureeng
dc.subjectSequía
dc.subjectDroughteng
dc.subject.otherFormación de la Madera
dc.titleEcophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variableseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/acceptedVersioneng
dc.description.filFil: Martinez Meier, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
dc.description.filFil: Fernandez, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.filFil: Dalla Salda, Guillermina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
dc.description.filFil: Gyenge, Javier Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.filFil: Licata, Julián Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.filFil: Rozenberg, Philippe Institut National de la Recherche Agronomique. Unité d’Amélioration Génétique et Physiologie Forestières; Francia
dc.subtypecientifico


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