间伐对华北落叶松人工林出材量的影响

摘要

Intermediate cutting plays a very important role on timber quality. The study showed that there was a difference in the timber outturn of Qiancengban forest center in Saihanba for Larix principis-ruppre-chtiiin Mayr plantation between thinned and un-thinned stands,and analysed the thinning effects on timber outturn. The results show that the thinning of Larix principis-rupprechtiiin Mayr plantation can increase timber size and timber outturn.%间伐对人工林木材质量有重要影响。该文通过对塞罕坝机械林场千层板林场间伐与未间伐的华北落叶松人工林的测定，分析了间伐对华北落叶松人工林出材量的影响。结果表明：间伐能够提高华北落叶松人工林木材规格，增加出材量。