【摘要】 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。更多还原

【Abstract】 After eight years of nursery and plantation experiments on several locations in Zhejiang Province since 1978 with 15 exotic poplar species and varieties, it has been found that the euramerican poplars are the fast-growing and high adaptable trees, and of high value for pulp- and paper-making. The best of them are "Havard", "Lux" and "San Martino". The growth of their stands in height averaged 3-4 m/yr. and in DBH averaged 4-5 cm/yr. respectively. The favourable site conditions for silviculture, the cultivating techniques, the economics, and the superior properties for pulp- and paper-making are also reported.更多还原