摘要
通过对24块红松人工林固定标准地的研究得知:修枝可显著提高林分的材积生长率并可改良林木的干形;修枝方法和侧枝粗细对切口愈合有着显著影响.一般应在侧枝较细时及时修枝,并可适当增加林分密度来限制侧枝粗度以利于修枝切口的愈合.修枝方法应采用紧贴树干平切的方法.在修枝强度上,提出了侧枝相对生长曲线法。
Through studying on 24 pernament sample plots,the conclusion is as follow:stem pruning raised the growth rate of stand and improved stem form.Relative growth curve method of side branch can determine to better the pruning intensity of different stands.
关键词
红松人工林
修枝
干形
林木生长
Korean pine,Pruning,Stem form relative growth curve method of side branch