摘要
本文通过对迭部林区修枝抚育过的粗枝云杉(Picea asperataMast)林和未经人工经营的林分生长状况进行调查,并做解析木数据对比分析,结果表明:人工云杉林在经过较大强度修枝抚育管理后,导致3年内林分的生长量明显下降;同时发现修枝抚育期较早的人工林易受到雨雪冰冻等自然灾害;云杉人工林的抚育管理、间伐应在林木完全分化后进行。
Investigation on the growth of Picea asperata Mast plantations which had been pruned or pruned were conducted,compete with stem analysis.The data showed that heavy pruning caused significant decline of growth within three years after.Trees pruned earlier would be subject to freezing damage.Tending and thinning should not be carried out untill the complete differentiation of trees
出处
《陕西林业科技》
2009年第3期14-16,共3页
Shaanxi Forest Science and Technology
关键词
粗枝云杉
人工林
修枝
生长量
Picea asperata Mast
plantations
pruning
growth.
