乔木层株数随胸径分布呈现截尾正态分布。
Diameter distribution of tree stratum reveals truncated normal distribution.
乔木层盖度是森林群落的主要数量特征之一。
Tree layer coverage is one of the primary numerical characteristics of forest community.
群落可分为乔木层、灌木层、草本层和层间层。
The community can be structurally divided into arborous layer, shrub layer and herbaceous layer.
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