The use of the pilodyn for assessing outerwood density in New Zealand Radiata pine

The pilodyn, which drives a spring-loaded pin with a known force into exposed wood, was used to estimate outerwood density. The pilodyn was calibrated against x-ray densitometer values of increment cores from eight stands. With trees from one stand grouped according to outerwood density and pilodyn...

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Bibliographic Details
Published in:Forest products journal 1996-11, Vol.46 (11/12)
Main Authors: Watt, M.S. (Groome Poyry Ltd., Havelock, North, NZ.), Garnett, B.T, Walker, J.C.F
Format: Article
Language:English
Subjects:
DENSIDAD
DENSITE
EQUIPO FORESTAL
MATERIEL FORESTIER
NOUVELLE ZELANDE
NUEVA ZELANDIA
PINUS RADIATA
PROPIEDADES DE LA MADERA
PROPRIETE DU BOIS
SEMENCE
SEMILLAS
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Summary:The pilodyn, which drives a spring-loaded pin with a known force into exposed wood, was used to estimate outerwood density. The pilodyn was calibrated against x-ray densitometer values of increment cores from eight stands. With trees from one stand grouped according to outerwood density and pilodyn penetration (upper 20%, medium and lower 20% of the population), the pilodyn captured at least 80 percent of the difference in increment core density between the upper or lower group and the medium group. Subsequently, stands that would produce a good proportion of higher density logs were identified by the pilodyn alone
ISSN:0015-7473