【摘要】 为给制浆造纸原料培育提供参考，以11年生邓恩桉（Eucalyptus dunnii）木材为研究对象，研究邓恩桉木材灰分、水、苯醇溶液和1%NaOH抽提物含量及其在不同树干部分和株间的变异规律，分析其制浆造纸的性质。结果表明，灰分、冷水抽提物、热水抽提物、苯醇抽提物和1%NaOH抽提物含量分别为0.46%、1.89%、2.39%、1.15%和12.23%。邓恩桉木材灰分、热水抽提物和苯醇抽提物含量在不同树干部位均差异极显著，冷水抽提物和1%NaOH抽提物含量均差异不显著；灰分、冷水抽提物、热水抽提物和苯醇抽提物含量在株间差异不显著，1%NaOH抽提物含量差异极显著。邓恩桉木材灰分和不同抽提物含量均保持在平均或较低水平，符合制浆造纸原料的要求。更多还原

【Abstract】 In order to provide reference for cultivation of pulp and paper raw materials, taking 11-year-old Eucalyptus dunnii woods as research objects, contents of ash, water, benzene-ethanol and 1%NaOH extracts of E.dunnii woods and variations in different stem parts and plants were studied. Characteristic of pulp and paper was analyzed. Results showed that contents of ash, cold water extracts, hot water extracts, benzene-ethanol extracts and 1%NaOH extracts were 0.46%, 1.89%, 2.39%, 1.15% and 12.23%, respectively. Contents of ash, hot water extracts and benzene-ethanol extracts of of E. dunnii woods were extremely significantly different in different stem parts, while contents of cold water extracts and 1%NaOH extracts were not significantly different;contents of ash, cold water extracts, hot water extracts and benzene-ethanol extracts were not significantly different among plants, and 1%NaOH extracts contents were extremely significantly different. Contents of ash and different extracts of E. dunnii woods maintained at average or lower levels, which met requirements of pulp and paper raw materials.更多还原