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孟县白榆是我国白榆优良类型之一。它生长快,树干高大通直,枝条开张角度小,群众都称“钻天杨”。一般10年左右成材,胸径可达20~25公分,树高16~20米,枝下高10米左右。它材质坚韧,弹性强,不易劈裂,是建筑、车船、农具、家具的优良用材。白榆根系发达,易栽培,适应性强,有耐寒冷、耐干旱、耐瘠薄、耐盐碱(含盐量0.3~0.4%能正常生长)等特点,是营造农田防护林和四旁绿化林的理想树种,在我国北方享有一定声誉。
Meilian County elm is one of the fine type of elm in our country. It grows fast, trunk tall and straight, branches opening angle is small, the masses are called “drilling days Yang.” Generally about 10 years into the timber, diameter up to 20 ~ 25 cm, tree height 16 to 20 meters, about 10 meters tall branches. It is tough, flexible, not easy to split, is the construction, vehicles, farm tools, furniture, excellent timber. The elm root system developed, easy to cultivate, adaptable, cold, drought, barren, salt (salt content of 0.3 to 0.4% can grow normally) and other characteristics, is to create farmland shelterbelts and green forest ideal Tree species, enjoy a certain reputation in northern China.