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落叶松是我国北方速生用材树种之一,树高可达30余米,胸径可达60厘米以上。它的寿命长,生长快,材质好,适应性强。树皮、树脂是生产单宁、松节油、酒精、木栓等的化工原料。引种落叶松对于提高森林生产率,丰富造林树种,促进社会主义林业发展具有重要意义。我省从1958年起,先后在黄龙山、桥山、秦岭、关山林区和长城沿线风沙区十多处进行了落叶松引种试验。树种有华北落叶松、朝鲜落叶松、长白落叶松、兴安落叶松,近年还引进了日本落叶松、卜氏落叶松和西伯利亚落叶松。引种较早的4种落叶松已初见
Larix is one of the fast growing timber species in northern China. The tree height is up to 30 meters and the diameter at breast height is up to 60 centimeters. Its long life, fast growth, good material, adaptability. Bark, resin is the production of tannins, turpentine, alcohol, clogs and other chemical raw materials. The introduction of larch for improving forest productivity, afforestation tree species, and promote the development of socialist forestry is of great significance. Since 1958, our province has carried out the test of introduction of larch in more than 10 places in Huanglong Mountain, Qiaoshan, Qinling Mountains, Guanshan Forest Zone and the Great Wall along the Great Wall. Tree species are Larix principis-rupprechtii, North Korea larch, Changbai larch, Larix gmelinii, larch, Japanese larch and Siberian larch introduced in recent years. The introduction of the earlier four kinds of larches have already seen