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红松(Pinus Koraiensls Sieb,et Zucc)和落叶松(Larix,spp)是我国东北地区主要经济树种,树干高大,通直而挺秀,在天然林中常形成上层林冠,树姿雄伟,凌空30公尺,红松号称东北天然林中之树王,高可达30—40公尺,直径100—150公分,寿命200—300年者颇不罕见,每个松塔(球果)中有种子百数十粒。据日人三岛超研究,红松100年才开始结实,其直径在48—60公分者结实最多。 红松和落叶松橫成了苍茂的树海,形成了巨大的森林蓄積,不断地满足国民经济对木材日益增长的需要。巨大的经济材种如建筑用的原木、锯材、车辆材及造船材等大多产自天然林中之红松和落叶
Pinus koraiensls Sieb (et Zucc) and larch (Larix, spp) are the main economic species in northeastern China. The trunk is tall, straight and tall, and often forms the upper canopy in the natural forest. , Pine known as the king of natural forests in the northeast of the king, up to 30-40 meters high, diameter 100-150 cm, life expectancy of 200-300 years is not uncommon, each pine cone (cones) Ten tablets. According to Japanese Mishima super-research, korean pine began to bear 100 years, the largest diameter of 48-60 cm in those most. Korean pine and larch trees become the vast sea, forming a huge forest accumulation, continue to meet the growing national economy on timber needs. Huge economic species such as construction logs, sawn timber, car materials and shipbuilding materials are mostly produced in the natural forest of Korean pine and leaves