青杨,又名大叶白杨、家白杨,为杨柳科的落叶乔木。树高可达30米,胸径可达1米。树冠卵形或椭圆形。幼树皮光滑灰绿色,老树皮暗灰色沟裂。枝、叶、花序各部无毛。在内蒙古地区多用于“四旁”绿化,是杨树中的良种。木材纹理细致,材质轻软,纤维含量高。可作家具、建筑用材,也是造纸工业的原料。青杨还具有一定的抗尘能力,可净化空气。在我国华北、西北、东北都有青杨分布。垂直分布幅度较大,自海拨800米(华北地区)—3000米 Poplar, also known as big-leaf aspen, poplar, is the deciduous tree willow Branch. Tree height up to 30 meters, diameter up to 1 meter. Crown oval or oval. Sapling gray-green bark, dark gray fur old bark crack. Branches, leaves, inflorescences glabrous. In Inner Mongolia are mostly used for “all around” afforestation, poplar is a good species. Detailed wood texture, light soft material, high fiber content. Can be used for furniture, construction materials, but also the paper industry’s raw materials. Qing Yang also has a certain anti-dust capacity, can purify the air. In North China, Northwest China, Northeast China have green distribution. Vertical distribution of the larger, since the altitude of 800 meters (North China) -3000 meters