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在培育的用材林分中,尤其是人工营造的幼林,为了使之在一定长度无节,修枝是一项有效的措施。修枝主要选择林龄较小,生长旺盛,树干树冠无缺陷,将近郁闭成林,有希望培育成主伐材的优良林分。对于尚未郁闭的幼林,采取弱度修枝为妥。那些树干弯曲,歪斜,部分损伤或腐朽、多节的不健康木、劣势木、林缘木等林分不宜修枝。修枝季节以冬末春初为好,因为早春修枝后,形成层活动力强,伤口愈
In nurturing the timber forest, especially the artificial planting of young forest, in order to make it a certain length without section, pruning is an effective measure. The main choice of pruning age smaller, vigorous growth, tree trunk crown defect-free, near canopy closed forest, there is hope to cultivate the fine-grained timber stand. For young forests that have not yet closed, it is advisable to adopt weak pruning. Those trunk bending, skewing, partial damage or decay, multi-section unhealthy wood, inferior wood, forest edge wood and other branches should not be pruned. Pruning season in late winter and early spring as well, because pruning in early spring, the formation of active layer, the wound more