【摘要】 分析了尾叶桉与细叶桉的人工改良杂种无性系(LH1)和天然杂交种(U6)的材性特征,同时运用现代模糊数学理论和工程建模方式建立速生材制浆适用性的综合多指标评判体系,最后得出可使用的综合评估模型。改良后的LH1比U6,综纤维素由81.93%提高至82.5%,木质素由25.68%降低至24.11%,聚戊糖由21.40%降低至19.33%,纤维长宽比由40.4提高至42.4,基本密度由441 kg/m3提高至473 kg/m3,综合评价材性指标,LH1的制浆适应性优于U6。经过与材料分析与预测的比对和数学建模,证实了所建模型的可靠性,LH1制漂白化机浆的适应性属于中等水平(III级),而U6属于中等偏下水平(IV级),LH1的制浆适应性优于U6,与试材材性测试结果一致。更多还原

【Abstract】 The wood properties of two kinds of eucalyptus,artificial cross(LH1) and free-pollination(U6),were analyzed.Meanwhile,modern fuzzy mathematics theory and modeling method were applied to establish the comprehensive multi-indexes evaluation system of the fast-growing wood.Compared with free-pollination U6,the holocellulose contnet,length-width ratio and basic density of artificial cross LH1 were increased to 82.5%,42 and 473 kg /m3from 81.93%,40 and 441 kg /m3respectively.Meanwhile,the lignin and pentose contents were decreased to 24.11% and 19.33% from 25.68% and 21.40%,respectively.Based on the analysis of wood properties,it is believed that the pulping adaptability of artificial cross LH1 is better than that of free-pollination U6.Comprehensive evaluation model was established,and it is reliable after comparison with wood properties and prediction.Mechanical pulping properties of artificial cross LH1 located in medium level(level III),while free-pollination U6 was in lower medium level(level IV).With the comprehensive comparison of wood properties and evaluation model,pulping applicability of the LH1 is better than U6.更多还原