Experimental Study on Sawing of Plantation Eucalypts in China

摘要

The experimental study was carried out examining three different sawing strategies for four species of plantation Eucalyptus in China. Sawing strain, bow deformation, sawing inaccuracy and the influence of end-splits were analysed. The results show that the bow deformation is directly related to the sawing sequence, but the sawing strain showed no relationship with the sawing process. High lumber hardness contributed to the thickness variation of E. citriodora and E. exserta but the large variation in E. urophylla × grandis was contributed by high growth stress. The end-splits in lumber of the eucalyptus species had a big influence on lumber recovery, with E. urophylla × grandis showing the worst end-splits following sawing. The Eucalyptus lumber could be used in value-added solid wood products if suitable sawing equipment and sawing strategies are selected.