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对林龄20年生6种造林密度的紫椴人工林固定试验样地调查数据分析表明,造林密度对保存率、树高、直径、直径分布、材积、蓄积均有明显影响。相同造林方式中,1.5m×1.5m株行距的中等密度保存率均高于其它两种密度,林分蓄积最大。研究结果表明,1.5m×1.5m株行距单株栽植是适宜的造林密度。
The survey data of fixed experimental plots of Tilia amurense plantation with six stands of 20 years old and 20 years old showed that plantation density had significant effects on the preservation rate, tree height, diameter, diameter distribution, volume and accumulation. In the same afforestation method, the medium density preservation rate of 1.5m × 1.5m row spacing was higher than the other two kinds of density, and the stand volume was the largest. The results showed that 1.5m × 1.5m row spacing plantation is the appropriate planting density.