一、碧玉杨碧玉杨是优秀的速生用材林树种,同时又可作为观赏性景观树种。该树的树干通直,顶端优势明显,树皮翠绿如碧玉,光滑不开裂,犹如少女的皮肤。碧玉杨中雄性株占99%,因此无飞絮。系国家林业局向全国范围进行推广的一个速生经济林树种。碧玉杨速生性好;抗寒、抗枯梢能力强,系万里常青苗木公司未来几年重点推广树种之一。二、彩虹柳 First, Jasper Yang Jasper Young is an excellent fast-growing timber forest tree species, but also as ornamental landscape tree species. The tree trunk straight, obvious advantages at the top, such as green jade bark, smooth and not cracking, like a girl’s skin. Jasmine Yang male strains account for 99%, so no fly Xu. Department of the State Forestry Administration to promote a nationwide fast-growing economic forest tree species. Jasper Yang good fast-growing; cold, anti-Shoots ability, Department of Wanli Evergreen seedlings in the next few years, one of the key promotion of species. Second, Rainbow Liu