【摘要】 为了探索制浆前后杨树纤维形态的变化,对5个杨树无性系在不同立地条件下的纤维长度、宽度、双壁厚及腔径进行了测定和分析。结果表明,立地条件对不同的杨树无性系的纤维长度和长宽比具有显著影响。同一立地条件下,不同无性系之间的纤维形态存在着差异。通过比较可见,69-1杨比72-2杨的造纸性能优越,7208杨比6901杨的造纸性能优越。制浆后,纤维长度分布的正态峰值拟合较好,纤维长度正态分布较好。5个杨树无性系制浆后的纤维长度都有所下降,纤维宽度都有所上升,长宽比下降。更多还原

【Abstract】 In order to investigate fiber morphological characters of poplar before and after pulp manufacture,the fiber length,fiber width,double wall thickness and lumen diameter of fiber of two kinds of poplar from different stand conditions were determined and analyzed.Different stand condition had significant effects on fiber length and fiber length-width ratio of different poplar clones.Fiber dimensions of different poplar clones were different at the same stand conditions.By comparison,characters of pulp manufacture of 69-1 poplar was superior to 72-2 poplar’s,characters of pulp manufacture of 7208 poplar was superior to 6901 poplar’s.The length of fiber after pulp manufacture decreased,the width of fiber increased.After pulp manufacture,the distribution of fiber length is approaching to normal distribution,and the match of actual summit data to standard summit data is less than perfect.更多还原