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本文以生长在3种长江滩地类型(江滩、洲滩、湖滩)、3种栽植密度(3m×4m,4m×5m,5m×6m)下的3个品系人工林杨树木材[欧美杨无性系72杨(Populus×euramericanacv.I-72/58),美洲黑杨无性系63杨(P.deltoidescv.I-63/51)和69杨(P.deltoidescv.I-69/55)]为对象,深入地分析了人工林杨树木材材性与单板和胶合板质量之间的关系。结果表明,72、63、69杨木材旋切和制胶合板均能获得较低的单板厚度偏差和背面裂隙率及较高的胶合强度。72、63、69杨单板厚度偏差与解剖性质中的纤维宽度、导管比量、木纤维比量在001水平下相关极显著,与纤维长度、胞壁厚度、壁腔比、腔径比、导管长和木射线比量在005水平下相关显著;单板背面裂隙率仅与胞腔直径在005水平下相关显著,与其它解剖性质相关不显著;胶合板的胶合强度与解剖性质相关最密切,其中与纤维长度、纤维宽度、胞腔直径、胞壁厚度、壁腔比、导管长、导管弦向直径、微纤丝角、导管比量、木射线比量在001水平下相关极显著。与木纤维比量在005水平下相关显著。72、63、96杨木材单板厚度偏差和单板背面裂?
In this paper, three species of poplar woods grown in three types of Yangtze River beach land (river beach, beach, beach), three planting density (3m × 4m, 4m × 5m, 5m × 6m) Populus × euramericanacv. I-72/58, P.deltoides cv. I-63/51 and P.deltoidescv.I-69/55 were Object, in-depth analysis of plantation poplar wood timber veneer and the relationship between the quality of veneer. The results show that both 72,63,69 poplar wood peeling and plywood production can get lower veneer thickness deviation and back crack rate and higher bonding strength. 72,63,69 Yang veneer thickness deviation and anatomical properties of the fiber width, the ratio of catheters, wood fiber ratio at 0 01 level significantly correlated with the fiber length, cell wall thickness, wall cavity ratio, cavity diameter The ratio of catheter length to wood-ray ratio was significant at 005 level; the rate of backside crack of veneer was significantly correlated with the diameter of cell cavity at 005 level but not significant with other anatomical properties; the bond strength of plywood The most closely related anatomical properties, including fiber length, fiber width, cell diameter, cell wall thickness, wall cavity ratio, catheter length, catheter chord diameter, microfibril angle, catheter ratio, wood ray ratio of 0 01 level under the relevant significant. And wood fiber ratio at 005 level significantly related. 72,63,96 poplar veneer thickness deviation and veneer back crack?