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地处干旱寒冷的“三北”地区,生长期短暂,苗木生长极慢,难以满足更新造林需求。为了加快育苗速度,我们自1975年至1982年在新疆天山北坡,海拔1700至1820米的乌苏林场,八一实习林场,乌南林场,对乡土树种雪岭云杉(Picea Schrenkiana Fisch.et.C.A.M-eg),西伯利亚落叶松(Larix sibirica Ledeb.),桦树(Betula tianschanica Rap-r.),欧州山杨(Populus trimula L.)·及引进树种华北落叶松(Larix Principis-r-
Located in arid and cold “Three Norths” regions, the growth period is short and the growth of seedlings is extremely slow, making it difficult to meet the needs of reforestation. In order to speed up the growth of nursery, from 1975 to 1982, on the northern slopes of Tianshan Mountains in Xinjiang, Wusuolin Farm, Bayi Forestry Training Center and Wunan Forestry Center, with an elevation of 1700 to 1820 meters, we cultivated the native species Picea Schrenkiana Fisch.et .CAM-eg), Larix sibirica Ledeb., Betula tianschanica Rap-r., Populus trimula L. and Larix Principis-r-