一、试验树种银白杨(Populus albalin)。1982年7月在阿勒泰北屯林场采伐5株,每株锯制了3个2米长的木段。试件采集制做和试验方法严格按国家1980年颁布的“木材物理学性质试验方法”进行。 结果分析: 银白杨心材边材区别明显,边材白色,心材呈淡黄褐色。纹理直,结构细而均匀。年轮明显,弦面花纹美观。 First, the test species Populus alba (Populus albalin). In July 1982, five plants were harvested at the Beitun Forest Farm in Altay, and three 2-meter long sections of wood were sawn for each plant. Specimen collection system to do and test methods strictly in accordance with the state in 1980 promulgated the “wood physics test methods.” Analysis of results: Poplar heartwood sapwood significantly different, sapwood white, heartwood pale yellow brown. Straight texture, thin and uniform structure. Significant ring, chord pattern beautiful.