In 1997, FERIC, Alberta Research Council (ARC), Ainsworth Lumber Inc., and Daishowa-Marubeni International Ltd. conducted a study to determine the productivities and costs of various methods of managing logging debris in aspen cutblocks. Conventional roadside processing, two in-block processing treatments (intermediate skid and at-the-stump processing), and roadside processing with subsequent dispersal of slash into the block were assessed.
The Forest Engineering Research Institute of Canada (FERIC) evaluated wood chip recovery, quality, and productivity when ring-debarking and chipping deciduous stems over a range of butt diameters in both unfrozen and frozen conditions in northern Alberta.
A multi-agency trial was established to determine the impacts of commercial thinning on the growth, yield, and development of white spruce stands. The commercial thinning operation was completed using a Timberjack 1270 harvester and a Timberjack 1210B forwarder. The Forest Engineering Research Institute of Canada (FERIC) monitored the harvesting phase, determined the operational cost and productivity of the harvester and forwarder, determined the residual tree damage, and evaluated the effectiveness of a brushing crew in increasing the productivity of the harvester in areas with high densities of non-merchantable trees.
FERIC undertook a study in central Alberta to compare debarking and chipping of small-diameter logs at a woodroom chipping operation and at a portable in-woods chipping operation. FERIC evaluated whether chip recovery and quality, and chipping productivity, are affected by changes in stem size, log condition (unfrozen versus frozen), and debarking and chipping method. Net operational costs were also examined.
We surveyed fire behaviour experts and wildlife biologists to rank the importance of four factors that affect the costs and benefits of seven post-harvest debris treatments and to determine the overall costs of each treatment to the forest industry and Alberta’s government. The four factors are fire behaviour potential, wildlife suitability, regeneration capability, and treatment costs.
The Forest Engineering Research Institute of Canada (FERIC) undertook a study at a woodroom chipping operation in central Alberta to evaluate the recovery and quality of chips produced from 3.5-m short logs. This report describes the chipping operation, and summarizes the chip recovery and quality, and chipping productivity.