Ⅳ．10种速生材制化学机械浆适应性综合评估的研究

Ⅳ. COMPREHENSIVE EVALUATION OF HIGH YIELD PULPING PROPERTIES

对１０种（杉木、山杨、美洲黑杨、欧美杨、毛白杨、光皮桦、白桦、黑荆树、雷林１号桉、尾叶桉）速生材制高得率浆有关材性和制ＢＣＭＰ适应性进行了系统研究。研究结果表明，不同树种间材性差异很大，因此反映在制ＢＣＭＰ性能方面也有很显著的差别。综合材性和制ＢＣＭＰ性能研究结果，在所研究的试样中按制ＢＣＭＰ综合性能排序：杨木最优，桦木其次，黑荆树、桉木再次，杉木较差。杨木中北方杨较优，桦木中北方桦较优。此结果为利用已有材种制化机浆及定向选择培育纸浆材树种提供依据。

This paper describes the authors’work on evaluation of short-rotation wood in high yield pulp-ing.About ten species or strains(Cunninghamia lanceolata,Populus davidiana,P.nigra,P. eurameri-cana,P, tomentosa,Betula cylindrostachya,B,platyphylla,Acacia mearnsii,Eucalyptus leilin no,1,E.urophylla,)were tested.The research results were concluded as follows: There are great variances inwood characteristics between tree species and in the same species of different ages.Therefore,their pulp-ing properties have big differences,The comprehensive high yield pulping potential of these species weresummarized in an order of good to poor as Populus spp,Betula spp,Cunninghamia lanceolata,Acaciamearnsii and Eucalyptus spp,From geographic point of view,poplar trees growing in Northern Chinahave better pulping properties than those in Southern China,and Betula species have the same rule.Theresearch results can be fed back to silviculture and industrial utilization.