Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables
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 w...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/1601 https://www.sciencedirect.com/science/article/pii/S0378112715000791 https://doi.org/10.1016/j.foreco.2015.02.021 |
| _version_ | 1855034826454728704 |
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| author | Martinez Meier, Alejandro Fernandez, María Elena Dalla Salda, Guillermina Gyenge, Javier Enrique Licata, Julián Andrés Rozenberg, Philippe |
| author_browse | Dalla Salda, Guillermina Fernandez, María Elena Gyenge, Javier Enrique Licata, Julián Andrés Martinez Meier, Alejandro Rozenberg, Philippe |
| author_facet | Martinez Meier, Alejandro Fernandez, María Elena Dalla Salda, Guillermina Gyenge, Javier Enrique Licata, Julián Andrés Rozenberg, Philippe |
| author_sort | Martinez Meier, Alejandro |
| collection | INTA Digital |
| description | 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). 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1601 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA16012018-07-04T15:01:54Z Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables Martinez Meier, Alejandro Fernandez, María Elena Dalla Salda, Guillermina Gyenge, Javier Enrique Licata, Julián Andrés Rozenberg, Philippe Pinus Ponderosa Arboles Forestales Forest Trees Lignification Water Silviculture Drought Lignificación Agua Silvicultura Sequía Formación de la Madera 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). 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. Fil: Martinez Meier, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Fernandez, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Dalla Salda, Guillermina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Gyenge, Javier Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Licata, Julián Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Rozenberg, Philippe Institut National de la Recherche Agronomique. Unité d’Amélioration Génétique et Physiologie Forestières; Francia 2017-10-26T17:31:58Z 2017-10-26T17:31:58Z 2015-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/1601 https://www.sciencedirect.com/science/article/pii/S0378112715000791 0378-1127 https://doi.org/10.1016/j.foreco.2015.02.021 eng info:eu-repo/semantics/restrictedAccess application/pdf Forest ecology and management 346 : 31-40. (June 2015) |
| spellingShingle | Pinus Ponderosa Arboles Forestales Forest Trees Lignification Water Silviculture Drought Lignificación Agua Silvicultura Sequía Formación de la Madera Martinez Meier, Alejandro Fernandez, María Elena Dalla Salda, Guillermina Gyenge, Javier Enrique Licata, Julián Andrés Rozenberg, Philippe Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title | Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title_full | Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title_fullStr | Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title_full_unstemmed | Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title_short | Ecophysiological basis of wood formation in ponderosa pine : linking water flux patterns with wood microdensity variables |
| title_sort | ecophysiological basis of wood formation in ponderosa pine linking water flux patterns with wood microdensity variables |
| topic | Pinus Ponderosa Arboles Forestales Forest Trees Lignification Water Silviculture Drought Lignificación Agua Silvicultura Sequía Formación de la Madera |
| url | http://hdl.handle.net/20.500.12123/1601 https://www.sciencedirect.com/science/article/pii/S0378112715000791 https://doi.org/10.1016/j.foreco.2015.02.021 |
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