在风沙大、水肥条件差的立地条件下,小叶杨生长缓慢,常形成小老树,不易成材,如何改造小叶杨小老树?经观察,发现河北杨耐旱、耐脊薄、树干端直,是当地优良的乡土树种。但其育苗困难,繁殖受到限制,几年来,我们用芽接方法在小叶杨上嫁接河北杨,以求达到改造的目的。 Under the condition of large sandstorm and poor water and fertilizer conditions, Populus euphratica grows slowly, often forming small old tree, which is not easy to grow. How to transform Populus euphratica? After observation, it is found that Yang poplar is drought tolerant, , Is a local native tree species. However, its nursery difficulties, breeding is limited, the past few years, we use Budding method grafted on poplar Young Hebei, in order to achieve the purpose of transformation.