Poda en plantaciones de pseudotsuga menziesii en la patagonia andina, argentina Report as inadecuate




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Bosque 2013, 34 2

Author: Miguel Davel

Source: http://www.redalyc.org/


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Bosque ISSN: 0304-8799 revistabosque@uach.cl Universidad Austral de Chile Chile Davel, Miguel Poda en plantaciones de Pseudotsuga menziesii en la Patagonia andina, Argentina Bosque, vol.
34, núm.
2, 2013, pp.
181-189 Universidad Austral de Chile Valdivia, Chile Disponible en: http:--www.redalyc.org-articulo.oa?id=173128718007 Cómo citar el artículo Número completo Más información del artículo Página de la revista en redalyc.org Sistema de Información Científica Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto BOSQUE 34(2): 181-189, 2013 DOI: 10.4067-S0717-92002013000200007 Poda en plantaciones de Pseudotsuga menziesii en la Patagonia andina, Argentina Pruning Pseudotsuga menziesii in the Patagonian Andes, Argentina Miguel Davel Centro de Investigación y Extensión Forestal Andino Patagónico (CIEFAP), CC14, CP 9200, Esquel, Chubut, Argentina, tel-fax: 54 2945 453948, mdavel@ciefap.org.ar SUMMARY In Patagonia Douglas-fir is grown to produce high quality timber; thus plantations should be pruned.
To prune a stand, the proportion of green crown to be removed (pruning severity) and the number of lifts should be defined.
The objectives of this research were to quantify the effect of pruning severity on tree growth and to select indicator variables to determine when to carry out pruning lifts.
To achieve the first objective a trial was established on low, medium and highly productive sites.
Pruning severities applied were heavy (65 % of the total tree height), intermediate (50 %), light (25 %) and control trees (no pruning).
To accomplish the second objective the association between five easy to measure variables (diameter at breast height (DBH), total height, diameter over stubs height, pruning height, maximum diameter over stubs of previous pruning) and maximum diameter over stubs (DOS) was studied on 656 trees.
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