Study on the wood characteristics of southern Populus nigra clone species
XU Shi-feng · Hunan Forestry Science and Technology · 2005
Analysis of basic wood density, cellulose content, fiber form of 19 new and elder clone species, which growth above the average growth level in 48 southern Populus nigra clone species constructive experiment forest seven to eight years old. There was no increase in wood cellulose content and fiber length of 19 clone species. There was evidence of wood? density increase among the Zhonghan 17 species. There was evidence in the basic density and fiber length in different ages of Populus nigra. The fiber length was increase with the age of one to eight years old Populus. The length of 0.9mm during one to three years old Populus called short fiber, and the evidence in each year after growth four years. The length above 0.91mm during four to seven years old Populus and reached the average fiber length, and there was no evidence each year. So the super short alternate cutting of Populus pulpwood was three or above three years.