Age, diameter, height, radial growth, geographical location, site and growing conditions, silvicultural treatment, and seed source, all to some degree influence wood <answer>density</answer>. Variation is to be expected. Within an individual tree, the variation in wood <answer>density</answer> is often as great as or even greater than that between different trees (Timell 1986). Variation of specific gravity within the bole of a tree can occur in either the horizontal or vertical direction. :)
Variation in what measurement is sometimes greater within one tree than from one tree to another?
density