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兴安落叶松是寒温带森林植被的主要成分,天然分布在我区东北的大兴安岭和东部的昭乌达盟克什克腾旗一带。垂直分布在海拔1000～1600米之间,以海拔500～1000米居多,在分布区内从山麓到森林上限都可组成大面积的森林。兴安落叶时松是我区天然林的主要组成树种,面积占天然林总面积的40.7％,蓄积占天然林总蓄积的63.3％。兴安落叶松为松科、落叶松属的落叶乔木,树皮暗褐色,片状开裂,树冠卵状圆锥形。长短枝区别明显,一年生小枝淡黄色,短枝顶端有黄白色长毛。冬芽暗褐色球形,有毛或极少。叶线形、柔软、簇生于短枝顶,在长枝上互
Larix gmelinii is the main component of frigid temperate forest vegetation and is naturally distributed in Daxinganling, northeastern China, and Zhaowuda League Keshiketengqi in the east. Vertical distribution at an altitude of 1000 to 1600 meters, with an elevation of 500 to 1000 meters mostly in the distribution area from the foothills to the forest ceiling can form a large area of forest. When Xing’an deciduous pine is the main composition of natural forest in our district, the area accounts for 40.7% of the total area of natural forest, accounting for 63.3% of the total volume of natural forest. Larix Larix is Pinaceae, larch deciduous tree, dark brown bark, lamellar cracking, crown ovate-conical. The difference is obvious between the short branches, annual branchlets pale yellow, sparse apical hair with yellowish white hair. Winter buds dark brown globose, hairy or rarely. Leaves linear, soft, clustered in short apical, long branches on each other