摘要
采用3株大树法,在优良林分中选择优良单株67株,以材积为主,附加形率、树冠因素,分级评分,按总分值将优树划分为五个等级。
By three-big tree method, 67 fine trees Were selected. On the condition of timber volume, plus other factors like form quotient and crown as well, they can be divided into 5 grades.
出处
《陕西林业科技》
2007年第1期11-13,共3页
Shaanxi Forest Science and Technology
关键词
巴山松
选优
等级
Pinus henriyi Mast
selection of fine tree
grade
