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1986~1990年间在吉林省汪清林业局清河林木种子站,对长白落叶松树体进行整形修剪试验。本着因势修剪、随枝造形和机械造形的原则,使树体形成“丫”字形、“开心形”骨架结构的树形。经五年的试验观察认为整形是可能的,并达到了矮化之目的。
From 1986 to 1990, the tree pruning experiment was carried out in Qinghe forest seed station of Wangqing Forestry Bureau of Jilin Province. In line with the situation of pruning, with the branch shape and the principle of mechanical shape, the tree formed a “Ah” -shaped, “happy-shaped” tree structure of the skeleton. After five years of experimental observation that shaping is possible, and reached the purpose of dwarfing.