秋材;晚材
As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.
造林密度大,则生长轮变窄,管胞列数减少,晚材率增加。
There are significant effects for thinning intensity on growth ring width, late wood percentage, growth ring density and hardness of Fraxinus mandshurica.
对生长轮宽度、晚材率、生长轮密度、木材硬度有显著影响;
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