毛白杨为杨柳科、杨属落叶大乔木,生长快,树干通直挺拔,树形优美,是一个优良的造林绿化树种,毛白杨广泛应用于城乡绿化,其品种适应性强,主根和侧根发达,枝叶茂密,优质,速生,丰产,为速生用材林,防护林和行道河渠绿化的好树种。
毛白杨是大名鼎鼎的落叶乔木,高达30米--40米,生长迅速,10年成才一点也没问题,因木材轻而细密,淡黄褐色,纹理直,易加工,可供建筑、家具、胶合板、造纸及人造纤维等用。
毛白杨树干端直,树形高大广阔,颇具雄伟气概,加上抗烟尘和抗污染能力强,也常被作为行道树。杨柳科都是雌雄异株,毛白杨雄株花开得比较早,3月中上旬,叶子还没长满树就挂满黑色的“毛毛虫”(杨柳科多数花序叫柔荑花序,像一个下垂的狗尾巴草花穗),树叶快长出来的时候黑色“毛毛虫”就掉光了,所以雄株不飘絮。讨人烦的杨絮是雌株惹的祸,刚开始雌株的花序也是黑色的像毛毛虫,但“毛毛虫”不掉,而是很快变成绿色,与叶子一起生长,等到4月中旬叶子长满树冠的时候它也开始飘絮了。
Weishi Populus Tomentosa
Populus tomentosa belongs to willow family as well as deciduous tree, which has characteristics of growing fast, having straight and tall tree trunk and beautiful shape. It is a good breed for forestation and verdurization and it widely used in this area for it has strong adaptability, flourishing root system, thick leaves, high quality and fast-growing features. Besides, it can also be used for architectures and to make furniture, papers, plywood and artificial fiber because its wood is light, thick and easy to be processed, and has straight veins.