不同土质对人工林落叶松纤维形态及造纸性能的影响

本研究以不同土质（暗棕壤和白浆土）的人工林落叶松（Larix olgensis)木材为试材，测定了木材纤维的纤维形态特征（包括管胞长度、管胞直径、壁腔比、微纤丝倾角及管胞长宽比）、物理特征（包括生长轮宽度、生长速率、晚材率及密度）和化学特征（包括综纤维素含量、木素含量、树脂含量及1％ NaOH抽提物）等指标。对系统的分析结果表明：不同土质的长白落叶松木的大多数纤维形态指标和物理、化学特征指标存在显著的差异；采用综合评分法对不同土质长白落松木材的有关指标进行制浆造纸性能的综合比较分析得出：土壤为暗棕壤的长白落叶松用作造纸用材较好。

The Effect of Different Soil Texture on the Anatomical Characteristics and Papermaking Characteristics of Larch Plantations

Using the wood in Larix olgensis plantations with different soil textures as testing materials, the authors determined the anatomical characteristics (including tracheid length, tracheid diameter, wall-diameter ratio, fibril angle and tracheid length-width ratio), physical characteristics (including growth-ring width, growth rate, late-wood percentage and density) and chemical characteristics (including the contents of holocellulse, lignin, pitch and 1% NaOH extractive) of wood fibers. By means of analyzing systematically, the results show that there exists significant difference between these two kinds of soil in most fiber anatomical, physical and chemical characteristics. Comprehensive analysis of the relevant factors for papermaking by comprehensive evaluation method indicates that larch wood in dark brown soil is suitable for papermaking.