Comparative Study on Fiber Morphological Characters of Poplar before and after Pulp Manufacture
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.