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杨树,木材洁白,轻软,纤维长,易分解,是重要的造纸、胶合板、包装箱、火柴杆及纺织工业原料,也是主要的民用建筑及家具材;繁殖容易,生长快,适应性广,又是我省四旁绿化、农田林网及速生丰产林的主要造林树种之一。 自1964年以来,山东省林科所先后引进杨树品种(包括种、变种、组合、系号)259个。1974年后,在茌平、邹平、沾化、兖州、商河、莒县、济南、嘉祥等处营建了二十一片品种比较试验林。试验结果表明,沙兰杨、Ⅰ—214、欧美杨(无系号)、健杨、
Poplar, white wood, light and soft, long fiber, easy decomposition, is an important paper, plywood, crates, matchstick and textile raw materials, but also the main civil construction and furniture materials; breeding easy, fast growth, wide adaptability , But also one of the main afforestation species afforestation, farmland shelterbelts and fast-growing and high-yield forests on the four sides of the province. Since 1964, Shandong Forestry Branch has successively introduced 259 poplar varieties (including species, varieties, combinations and lines). After 1974, twenty-one varieties of comparative experimental forests were built in Chiping, Zouping, Zhanhua, Yanzhou, Shanghe, Yixian, Jinan and Jiaxiang. The test results show that Sallam, Ⅰ-214, Europe and the United States Yang (no system), Jian Yang,