%0 Journal Article %T Efecto de la densidad de plantaci¨®n inicial en el m¨®dulo de elasticidad din¨¢mico de ¨¢rboles en pie y trozas de una plantaci¨®n de pino radiata de 28 a£¿os, en la zona de arenales, Chile %A Soto %A L %A Valenzuela %A L %A Lasserre %A J.P %J Maderas. Ciencia y tecnolog¨ªa %D 2012 %I Scientific Electronic Library Online %R 10.4067/S0718-221X2012000200008 %X the influence of initial planting density (dpi) on the dynamic modulus of elasticity (moed) was examinated at a 28 years old pinus radiata d. don spacing experiment with four treatments (2500, 1667, 833 and 625 stem¡¤ha-1) growing on sandy soil, in the biob¨ªo region, chile. the moed acoustic technology was determined using the method of time of flying (tv) for standing trees and the resonance method (res) for two logs of 5 m long, extracted from the tree base to the top of each tree. moed was not significantly influenced by dpi in high initial stocking treatments (2500, 1667 and 833 stem¡¤ha-1), both standing trees and logs level. in contrast, the lowest initial stocking treatment (625 stem¡¤ha-1) had the highest moed, significantly different in standing trees and the first the log, and similar between the first and second log. %K dynamic modulus of elasticity %K initial planting density %K pinus radiata. %U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0718-221X2012000200008&lng=en&nrm=iso&tlng=en