】１９８８年春，采取行间１∶１的混交方式，营造了株行距２×１５ｍ的杨树与沙棘混交林，一次造林成林。造林后，整个生长期间未进行铲趟抚育。１０年后调查，混交林中的杨树平均胸径、平均树高、平均单株材积，分别比对照的杨树纯林增长３％、６％、７％。显示了沙棘具有促进杨树增产的效果。 In the spring of 1988, a 1: 1 intercropping method was adopted to create a mixed forest of poplar and sea buckthorn with a row spacing of 2 × 15m and one afforestation. After afforestation, no shoveling was carried out throughout the growing season. After 10 years, the average diameter at breast height, average tree height and average single plant volume in mixed forest increased by 3%, 6% and 7% respectively compared with that of the control. It shows that seabuckthorn has the effect of promoting poplar yield.