...更新幼林 6 森林更新方法 天然更新和人工更新优缺点比较 天然更新（Natural regeneration） 人工更新（Artificial regeneration） 优 更新的费用少，能保 持地表和土壤的良好 状态，常可形成稳定 的适应性强的混交林 结构 幼苗幼树生长较迅速，便 于更换树种及...
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artificial regeneration under canopy 冠下人工更新
artificial regeneration under forest canopy 冠下人工更新
artificial forest regeneration 森林人工更新
artificial aging regeneration 人工再生
artificial measures promoting regeneration [林] 人工促进更新
artificial forcing regeneration 人工促进更新
artificial stimulating natural regeneration 人工促进天然更新
Plowing by tractor or by man can get a good effect for artificial regeneration.
人工促进效果以拖拉机耙地和人工耧地为好；
So we should adopt the artificial regeneration measures such as replanting, sowing.
因此，应通过林下补植、补播的措施来加以人工更新。
Objective To observe clinic curative effect on treating serious periodontitis with BAM artificial bone by periodontal guided bone regeneration(PGBR) technique in one year.
目的了解拜阿蒙（BAM）骨诱导人工骨通过引导牙周骨组织再生术治疗重度牙周炎患牙的临床疗效。
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