关于木材密度的各种调查数据之间存在着明显的矛盾,每个人都认为自己的数据是精确的,他们之间的矛盾是可以理解的,因为我们没有必需的资料来充分地解释这种差异,所以这些数据在所发表的不同的论文中有着明显的差异。从子代试验的结果来看,似乎在树木家系中生长得越快的树反而木材密度愈低。因此,在比较家系的生长率与木材密度的关系时,常常表现出弱的负相关关系。然而,也有几份研究报告指出,通过营林措施可以在提高树木生长率的同时,提高木材的密度。为了更进一步了解这种关系,必须知道有关木材的构造,特别是关于导管的尺寸和分布频度。关于这种矛盾的另外一个解释是:各种措施对木材密度的巨大影响对于自然条件的变化所产生的影响来说还是较小的,所以,试图建立各种变化趋势是困难的。现在,似乎能得出的结论是任何关于生长率对木材密度的影响在平衡地考虑营林和育种的影响力之内都被谨慎地认为是极小的和可能的。 There is a clear contradiction between the various survey data on wood density, and everybody thinks their data is accurate, and the contradiction between them is understandable because we do not have the necessary information to fully explain this difference , There is a clear difference between these data in the different published papers. Judging from the results of offspring trials, the tree that seems to grow faster in tree families, in contrast, has lower wood density. Therefore, when comparing the relationship between the growth rate of family and the density of wood, it often shows a weak negative correlation. However, several studies have also pointed out that silviculture measures can increase the density of wood while increasing tree growth rates. To learn more about this relationship, one must know about the construction of the wood, especially about the size and frequency of the catheter. Another explanation for this discrepancy is that the enormous impact of various measures on wood density is small for the effects of changes in natural conditions, and it is difficult to attempt to establish trends of change. What seems to be drawn now is that any insight into the impact of growth rates on wood density has been carefully considered to be minimal and possible within a balanced view of the influence of silviculture and breeding.