造林密度大，则生长轮变窄，管胞列数减少，晚材率增加。

As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.

youdao

造林密度大，则生长轮变窄，管胞列数减少，晚材率增加。

As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.

youdao