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。
wood basic density is clearly related to late wood percent.
木材密度与晚材率的正相关显着。
there are significant effects for thinning intensity on growth ring width, late wood percentage, growth ring density and hardness of fraxinus mandshurica .