Determinación del sistema de raleos por índices de sitios para plantaciones de Eucalyptus sp. en Pinar del Río
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Abstract
Were measured 363 trees from different ages and site index localities by less sample plots method, in plantations of Eucalyptus saligna Sm and E pellita F. Muell settled in three forest enterprises: La Palma, Pinar del Rio and Macurijes. Crown average was used as indicator of measurable trees, as also stem form, health and vigor of trees. Rotational cycle of felling was fixed at age 15. For yield prediction the Schumacher’s formula was used (see Alder, 1980). The paper outcomes that index site 24 needs three thinnings, two thinnings are necessary for index site class 21 and 18, while site index 15 needs only a singular thinning. Yield tables were calculated for all site index class and assortments products of thinning tables are added. Silvicultural treatments were being effective if yield tables by site class obtained in this work are used.
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References
Alder, D.: «Estimación del volumen y predicción del crecimiento», Estudio FAO Montes, vol. 22-2, 1980.
Álvarez O, P. A; J. C. Varona T, Silvicultura, Ed. Félix Varela, La Habana, 2006.
Betancourt B, A.: Silvicultura especial de árboles maderables tropicales, Ed. Científico-Técnica, La Habana, 1987.
Domínguez, A.: Comunicación personal, 2006.
Peñalver R, A.: «Estudio de crecimiento y rendimiento de las plantaciones de Eucalyptus sp. en la provincia de Pinar del Río». Resumen de la Tesis para Doctor en Ciencias Forestales, 1991.
Prodan, M. et al.: Mensura forestal, Instituto Interamericano de Cooperación para la Agricultura, San José, Costa Rica, 1997.
Rezende, M. A. et al.: «Variação de massa específica da madeira de Eucalyptus grandis aos 8 anos de idade em função de diferentes níveis de produtividade», revista Scientia Forestalis no. 53, Brasil, 1998, pp. 71-78.
Souza, Cintia et al.: «Comportamento de Acacia mangium e de clones de Eucalyptus grandis x Europhylla em plantios experimentais na Amazônia Central», revista Scientia Forestalis, Brasil, no. 65, 2004, pp. 95-101.
Stephan, G.: «La variación del número de los árboles en plantaciones de Pinus caribaea», Technische Universität Dresden, Section Forswirtschaft, 1980.