Measurements of tree height, breast height diameter
, wood density and green volume were made using standard methods.
Hoibo (1991) found, in a spacing study of Norway spruce, that breast height diameter measured early in the tree's life was a better predictor for quality in the lower part of the bole, while the breast height diameter measured late in the tree's life told more about the properties farther up the stem.
If the stand is close to being even aged it is possible to use mean breast height age for the stand together with breast height diameter to describe the diameter growth for the individual tree.
The effects of different breast height diameter classes (i.e.
The breast height diameters were regrouped into three classes (small < 40 cm; medium = 40-50 cm; and large > 50 cm) to investigate the effects of different diameter classes on value gain of optimally bucked logs.
The breast height diameter and the height were measured for each tree and the species composition on sample plot was determined.
The trees on the plot have the highest average height and breast height diameter (7.9 m and 13.5 cm, respectively) of all the species.
In the geographical experimental plantation of European larch (sample plot 4) the average height of the trees grown from Rheinland-Pfalz seeds was 22.5 [+ or -] 1.0 m and their average breast height diameter was 24.1 [+ or -] 1.5 cm in 2001 (see the Table).
Age and breast height diameter of Sapium sebiferum were found to be significantly correlated (r=0.7032, p=0.0143).
For each pair combination, 10 breast height diameters and distances to the nearest neighbor (measured from center of trunk to center of trunk) were determined.
the standwise model, where treewise information was not available; however, the breast height diameter
distribution and heights were assumed to be known or estimated.