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加拿大木材采运作业有原条集运材和原木集运材等多种方式,近年来,原条集运材比重占采伐量的80%左右。伐木和打枝:主要使用油锯。伐木工伐倒相当于拖拉机一次集材量后,用油锯打枝。树倒方向根据风向、立木倾斜情况和便于捆挂等因素来撑握。打枝留楂长8-10厘米。集材拖拉机到后,伐木工帮助捆挂。伐木和打枝的劳动生产率为:云杉林伐区,原条平均材积0.16立方米时,每班22-25立方米;原条平均材积0.47立方米时,每班37-43立方米。伐区不进行清林工作,认为留下采伐剩余物有利于增加土壤肥力和珍贵树种幼苗的遮荫。
In Canada, timber harvesting operations include the original strip collection and timber collection and transportation, and other methods. In recent years, the proportion of original strip collection and transportation materials accounts for about 80% of the total harvesting volume. Logging and grafting: The main use of chain saws. Lumberjack down equivalent to a tractor once the amount of timber, with a chain saw. Tree down direction according to the wind, stand tilt and easy to bundle and other factors to hold grip. Long leave 8-10 cm. After the timber tractor comes, the lumberjack helps to bundle. The labor productivity of logging and shoveling is: Picea cutting area, the original strip average volume of 0.16 cubic meters, 22-25 cubic meters per class; the original strip average volume of 0.47 cubic meters, 37-43 cubic meters per class. The cutting area does not carry out the work of clearing forests and believes that leaving logging residues helps increase soil fertility and shade of precious tree seedlings.