摘要
研究提出了红松人工林选择初选优树方法和标准。应用多元回归和改良加权系数公式计算选择指数，依选择指数最高者为初选优树。提出红松坚果型优树划分为早熟型和晚熟型。通过定向培育。
The paper describes the mothod and standard of selecting primary selection plus tree for artificial pinus koraiensis forest, which calculats selective index through multiple seqression and improved weighted coefficient. The highest tree of selective index is primary plus one. lt is put forward that nut type plces tree of pinus koraiensis is divided into the precocity type and late-maturing type. Good nut type of the tree species will be selected through directional cultivation.
出处
《林业科技》
北大核心
1997年第4期9-11,共3页
Forestry Science & Technology
关键词
红松
坚果
优树
初选标准
Aritificial Pinus koraiensis forest
Plus tree of nut type
Primary standard
