长白山林区复层异龄林垂直结构的研究

通过皆伐样地资料，利用立木的树种与树高，年龄与树高，径阶与树高的关系分析了长白山林区复层异龄针阔混交林群落中林木垂直结构的动态变化。认为群落中的目的树种必须有连续更新的能力，立 各高度级中均有分布，群落中应有分布不同高度级组成树种作为辅佐木线或伴生种；长白山林区的阔叶红松林系统和暗针叶林系统的森林植物群落有较强的自我恢复和自我稳定机制；同一树种立木按径阶或龄级分布的峰值有随林层上升而增

Study on Vertical Structure of Compound Storied Uneven-aged Forest in Changbai Mountain Forest Region

By the materials of clear cutting sample plot,the dynamic variation of forest verticalstructure in conifer-broad mixed forest communities was analysed applying the relation of tree hightht totree species,ages and diameter grade, The author considered that the purpose species of trees wouldhave the properties of continious renevval and distributed in every hight grade. There were also compositespecies distributing in different hight grade as a companying species in it.The forest communities inbroad korean pine and dark coniferious forest both had the mechanisms of self-recovery and self-stabili-ty,and the crest value of the same tree species increased with the forest layer ascending.