同一单株内和不同单株之间,桉树在木材构造方面有很大的遗传性,包括纤维和导管的大小。这种遗传作用比生长条件对木材构造的影响更为显著。相形之下,生长率对木材构造的影响比较微小。于是,我们可以认为:人工林与天然林桉树在木材性质上的差异属非构造的差异,而主要是由于生长快的人工林含有较高比例的幼龄材。 Eucalyptus trees are highly hereditary within the same plant and between different plants, including the size of the fibers and catheters. This genetic effect is more pronounced than the effect of growth conditions on wood construction. In contrast, the growth rate of the wood structure is relatively small. Therefore, we can think that the differences in wood properties between plantation and natural forest eucalyptus are non-structural differences, mainly due to the fact that the fast-growing plantation contains a higher proportion of young wood.