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红松是我国珍贵用材树种之一。但在东北林区红松林木树干分杈现象比较严重,据在五营、带岭一带调查,原始林中分杈木约占90％,而且基本上是多岐分杈;红松人工林中分杈木也占9-90％(见表1)。立木分杈对红松之干形、材种出材率以及培育大径材都有很大影响。因此,弄清红松分杈原因,找出解决的途径,具有重要的理论和实践意义。关于红松分杈的原因,不少林业工作者曾做过探索。多数人认为是结实、虫害、气候或环境条件影响所致,亦有称之为“树冠更替”的。通过五年的研究,作者认为分杈并不是红松生长的正常现象,而是不利的环境因子作用于它的具有特殊形态的顶芽和顶梢的结果。现浅撰成文,报道如下。
Korean pine is one of our precious timber species. However, in the forest area of northeastern China, Pinus koraiensis is more severed. According to the investigation in Wuying and Zailing areas, about 90% of the birchwood in the original forest is inhabited, Twigs also account for 9-90% (see Table 1). Standing branch of the pine on the dry shape of pine, timber species and the cultivation of large diameter timber have a great impact. Therefore, it is of great theoretical and practical significance to find out the reasons for the bifurcation of Korean pine and to find out the solutions. On the reasons for the branch of Korean pine, many forestry workers have done exploration. Most people think it is strong, pests, climate or environmental conditions caused by the impact, also known as “canopy replacement.” After five years of research, the author argues that bifurcation is not a normal phenomenon of Korean pine growth, but rather an adverse environmental factor that acts on the buds and tops of its special shape. Now shallow essay, reported below.