大兴沟林业局乔木林地各龄组树种结构分析

Analysis of Tree Species Structure in Different Age Groups of Arbor Forestland of Daxinggou Forestry Bureau

2017年对吉林省大兴沟林业局开展森林资源二类调查,结果表明:全局乔木林地按龄组结构分为五种类型,在所有类型中,天然树种以蒙古栎所占株数、蓄积最大;人工树种以落叶松株数、蓄积百分比最大。

In 2017,forest management investigation was carried out in Daxinggou Forestry Bureau of Jilin Province,the results showed that the forest land was divided into five types according to age group structure,among them,Quercus mongolica accounted for the largest tree quantity and tree volume in the natural tree species;in artificial tree species,artificial larch was the largest proportion of its quantity and volume.