摘要
通过对红松林采取不同强度的修枝和抚育间伐,研究该措施对红松生长量的影响,结果表明:修枝改善了林分生长条件,促进林木形成良好干材;抚育间伐后,林木的直径生长量和连年生长量显著增加,对林分总蓄积量的影响不甚明显,但相对蓄积量的增加还是很明显的,经抚育间伐的林分比未抚育间伐的林分增加1.2~1.4倍。
Through the pruning and thinning of Pinus koraiensis forest with different intensities,the effects of the measures on the growth of Pinus koraiensis were studied. Result shows that the pruning improve the growth conditions of the stand and promote the formation of optimal dry wood. After the thinning,the growth of tree diameter and the annual growth rate increase significantly,but the impact on the total volume of the stand is not obvious,but the increase in relative stock volume is still very obvious. The number of forest stands after thinning is 1. 2-1. 4 times higher than that of forest stand without thinning.
作者
倪鹏跃
Ni Pengyue(Liaoning Provincial Experimental Forest Farm,Fushun 113311 ,China)
出处
《防护林科技》
2018年第5期35-36,共2页
Protection Forest Science and Technology
关键词
红松
修枝
抚育间伐
Pinus koraiensis
pruning
thinning
