我省于1978年从江苏省引进6种意大利杨树品种进行试验研究,经过6年多的试验,从中筛选出的72杨、69杨在生长、材质、抗逆性等方面均优于其它4个品种、材积比对照品种沙兰杨材积分别超出142—47%和56～12%。在适宜的立地条件下,采用合理的栽培措施,可望在10年左右,单株材积达到或超过一立方米,在我省广大平原 In 1978, the province introduced six poplar varieties from Italy to carry out experimental studies. After more than six years of experiment, 72 poplars and 69 poplars selected from them were better than the other 4 in terms of growth, material and stress resistance A variety, the volume ratio of the control species Salad Yang volume exceeds 142-47% and 56 ~ 12% respectively. In the appropriate site conditions, the use of reasonable cultivation measures, is expected in about 10 years, the volume per plant reached or exceeded one cubic meter, in our province the vast plains