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木文通过对长白松(Pinus sylvestris var. sylvestriformis)立木相对干形的初步分析,认为长白松的相对干形具有一定的稳定性。起源不同并未引起干形变异,同一林分内不同立木的相对干形基本上是一致的。通过计算得出长白松立木各相对高度处直径经验公式模型。
Wood Based on the preliminary analysis of relative dryness of standing wood of Pinus sylvestris var. Sylvestriformis, the relative dryness of wood was considered as a certain stability. Different origins did not cause stem-shaped variation, and the relative dryness of different stands in the same stand was basically the same. Through the calculation, the empirical formula model of the diameter at each relative height of Pinus radiata was obtained.