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自1978年起,按速生、适生和制浆造纸性能好三项原则由全国各地引入栽培杨树种类和品种计15种。经8年多次多地点重复育苗造林试验表明,意杨类完全适应浙江省的生长条件,可以无性和有性繁殖,在适宜的立地条件下,造林成活率几达100％,生长速度极快。其中最好的哈佛、鲁克斯和圣马丁3个品种所造数百亩的林子,林分树高生长平均3～4m/年,胸径生长平均4cm/年。造林10年后可亩产制浆材25m~3以上。比浙江省其它速生树种生长快1～2倍。
Since 1978, according to the three principles of fast-growing, suitable for living and good performance of pulping and paper making, 15 species and species of cultivated poplar were introduced from all over the country. Repeated nursery and afforestation experiments for more than 8 years showed that the Italian poplar fully adapted to the growth conditions of Zhejiang Province, can be asexual and sexual reproduction, in the appropriate site conditions, afforestation survival rate of up to 100%, the growth rate extremely fast . One of the best Harvard, Ruukos and St. Martin three species of acres of woods made of trees, the average tree height growth of 3 ~ 4m / year, average diameter growth of 4cm / year. 10 years after afforestation per mu pulp production 25m ~ 3 or more. Faster than other fast growing tree species in Zhejiang Province 1 to 2 times faster growth.