[Physicomechanical properties of plantation poplar wood under different eco-environments].
The measurement of the physicomechanical properties of 9 plantation poplar I-69 (Populus deltoides CV. 1-69/55) woods under fertilization and seasonal flooding showed that compared with no fertilization, fertilization increased the ring width, static modulus of elasticity, and compressive strength parallel to the grain by 0.99 % (P > 0.05), 2.73% (P < 0.05) and 1.06% (P < 0.05), while decreased the air-dry radial, tangential, volumetric shrinkage, oven-dry radial, tangential, volumetric shrinkage, basic density, MOR, and dynamic modulus of elasticity by 4.2%, 7.7%, 6.6%, 15.6%, 6.3%, 11.1%, 2%, 1.79% and 8.13%, respectively. Seasonal flooding decreased the basic density, air-dry radial, tangential, volumetric shrinkage, oven-dry radial, tangential, volumetric shrinkage, MOR, MOE, and compressive strength parallel to the grain by 5.5%, 11.1%, 9.2%, 9.6%, 16.7%, 10.9%, 8.5%, 24.29%, 18.18% and 16.81%, respectively, in comparing with non-flooding.
College of Forestry and Gardening, Anhui Agricultural University, Hefei, China. zhacs@163.com
Chaosheng
C
Zha
Jianan
J
Wang
Yu
Y
Fang
Shengquan
S
Liu
D017753:Ecosystem; D004777:Environment; D005308:Fertilizers; D032107:Populus / Q000254:growth & development*; D013314:Stress, Mechanical; D013718:Tensile Strength; D014934:Wood / Q000737:chemistry
D005308:Fertilizers