Nondestructive Test on the Evaluation of Basic Wood Properties of Fast Growing Plantation Tree in Vietnam
Koichi YAMAMOTO Head of Wood Preservation Laboratory, Forestry and Forest Products Research Institute, P.O.Box 16, Tsukuba-Norin, lbaraki 305-0000, Japan
ABSTRACT
In order to evaluate the basic wood properties of plantation trees. a nondestructive method was applied on the standing trees in Vietnam. Stress wave velocities by FAKOPP were measured on 17 living trees through the stem in longitudinal direction. Increment core was also obtained from the stem at the breast height to know the density and green moisture content of the tree. Moisture contents of wood being more than 100 %, varied strongly among trees. There was, however clear positive relationship between basic wood density and stress wave velocity. It is probably possible to estimate the basic wood density of the stem of standing trees to determine the thinning trees or select mother trees in the point of wood properties.
Publication Source: Proceedings of the 12th International Symposium on Nondestructive Testing of Wood University of Western Hungary, Sopron, 13-15 September 2000, ISBN 963 7180 88 5 Publisher: University of Western Hungary, H 9400 Sopron, P.O.Box 132, FAX: +36 99 311 103
