Zha Chaosheng, Wang Jianan, Fang Yu, Liu Shengquan
College of Forestry and Gardening, Anhui Agricultural University, Hefei, China.
Ying Yong Sheng Tai Xue Bao. 2005 Nov;16(11):2012-8.
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.
对9株施肥和季节性水淹处理下的人工林I-69杨（Populus deltoides CV. 1-69/55）木材的物理力学性能进行测定，结果表明，与未施肥相比，施肥使年轮宽度、静弹性模量和弦向抗压强度分别增加了0.99%（P>0.05）、2.73%（P<0.05）和1.06%（P<0.05），而气干径向、弦向、体积干缩率，全干径向、弦向、体积干缩率，基本密度、抗弯强度和动弹性模量分别降低了4.2%、7.7%、6.6%、15.6%、6.3%、11.1%、2%、1.79%和8.13%。与未水淹相比，季节性水淹使基本密度、气干径向、弦向、体积干缩率，全干径向、弦向、体积干缩率，抗弯强度、弹性模量和弦向抗压强度分别降低了5.5%、11.1%、9.2%、9.6%、16.7%、10.9%、8.5%、24.29%、18.18%和16.81%。
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