天然兴安落叶松林年龄结构的分析

Analyses for Structures of Age in Natural Larix gmelinii Stands

本文利用天然兴安落叶松林分7块标准地资料,对林分年龄结构进行了分析。结果表明:林木年龄与林木直径之间存在着A=α+βlog(D)关系,林木年龄与林木树高之间存在着A=α+β(H)关系。另外,在本文中,利用林分年龄结构特征,把天然兴安落叶松林划分为三个类型,并提出了确定林分年龄的方法。

Using seven plots of natural Larix 'gmelinii stands, structures of age class of stand are analysed in this paper. The results show that the relation between age and diameter of tree is A=α+ βlog(D),and the relation between age and height of tree is A=α+ β(H). Natural Larix gmelinii stands are divided into three types according to the characteristics in structures of age class. The method for determining age of stand is given.