摘要
通过标准地调查,对比研究林冠下引进红松的经营措施对天然杨桦中幼次生林的影响效果。调查发现,对林冠下引进红松的经营不但可以得到间伐材,还可以提高林分的树种丰富度、改善林分结构、提高林分质量、增加公顷株树和平均胸径,进而显著提高林分公顷蓄积。
The effect of the application on typical poplar - birch forest, specific introducing korean pine seedlings into those pruned poplar - birch forest stand was studied. The analysis show us that this application not only can get pruning volume but also improve the species richness , structure, quality and the total volume of the stand.
出处
《林业勘查设计》
2013年第2期53-55,共3页
Forest Investigation Design
关键词
杨桦次生林
杨桦中幼龄林
红松
poplar- birch secondary forest
young growth and half- mature forest
Korean pine
