摘要
根据吉林省汪清林业局的材料,对人工长白落叶松林的采伐年龄进行了研究。结果如下:根据平均生长量最大值确定的数量成熟龄为38a(年)。根据木材用途,中、小径材的工艺成熟龄分别定为25a和20a。根据收入和成本计算的各种经济成熟龄定为25～35a之间。最后根据经营目的等因素,将人工长白落叶松林的采伐年龄确定为26～30a。
Based on data collected from the Wangqing Forest Enterprise,this paper discussed the cutting age of Larix olgensis plantations.According to the maximum mean annual increment,the rotation age should be 38.Considering the small and middle wood used as mining timbers,posts and in housing construction in the country,the rotation age should be 20~25.According to the cost and income,the financial rotation age should be 25~ 35.In conclusion,according to the different purposes the general rotation age should be 26~30.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1990年第3期34-39,共6页
Journal of Beijing Forestry University
关键词
落叶松
采伐年龄
人工林
Larix olgensis,quantitative maturity,technical maturity,economical maturity,cutting age
