The Forest Engineering Research Institute of Canada (FERIC) conducted field studies involving a compact, track-mounted jaw crusher used to crush rock for new roads and for road rehabilitation work. This report describes the studies, provides productivity and cost information on the use of the crusher, and provides suggestions for implementing this rock crushing technology on forest roads.
From July to September 1997, FERIC performed short-term case studies of five different implements used to till compacted landings in the Cariboo Forest Region. The case studies were part of a larger study by Lignum Ltd. and the B.C. Ministry of Forests, Cariboo Forest Region to investigate techniques for rehabiliting compacted medium and fine-textured soils. The five implements studied were: an excavator-mounted six-toothed silvicultural rake; a rake and a high-speed mixing head mounted on skid-steer loader; a Tilth winged subsoiler towed by a crawler tractor; standard ripper teeth mounted on a crawler tractor; and a skidder-mounted powered disc trencher. This report reviews the treatments, productivities and costs of using the five implements.
FERIC a suivi deux broyeurs Bull Hog (le BH 150 et le BH 250) pour évaluer leur potentiel pour la récupération des secteurs forestiers improductifs envahis par une végétation arbustive indésirable. La qualité du traitement par les deux broyeurs était bonne, mais leurs coûts élevés d'opération limitent leur utilisation aux peuplements à croissance rapide avec des volumes modérés de végétation arbustive, à proximité des usines.
In April 1999, the Western Division of FERIC held an implementation workshop for its advisory committee members. Twenty-four presentations were made by 26 speakers, including topics on planning, road construction and deactivation, harvesting and thinning operations and log hauling. This proceeding summarizes the material presented at the workshop.
This report discusses various methods for improving operational effectiveness and decreasing the severity of the disturbances typically associated with regenerating burned sites. The report compares methods proposed for more difficult conditions with conventional windrowing, and also discusses lighter and more economical site preparation techniques. It emphasizes the importance of carefully targeting each type of treatment to the appropriate conditions to avoid unnecessarily high costs and levels of site disturbance.
The current infestation of mountain pine beetle (Dendroctonus ponderosae) is having a signigicant effect on the lodgepole pine forests of interior British Columbia. Some of the infested stands will regenerate naturally over time as part of a natural disturbance pattern with fires and stand succession, but other stands will need assistance to restore them before regeneration is established. The Forest Engineering Research Institute of Canada (FERIC) conducted a literature review examining regeneration issues in lodgepole pine stands killed by mountain pine beetle. The literature review also included regeneration following other large-scale natural disturbances such as wildfire, since the treatments may be applicable to beetle-killed stands.
From September 1998 to May 1999, the Forest Engineering Research Institute of Canada (FERIC) performed short-term case studies of temporary road and landing rehabilitation operations in Alberta and Saskatchewan. Rehabilitation at each location consisted of ripping potentially compacted road and landing surface, followed by retrieving roadside berms of topsoil and organic material including large and small woody debris. This report reviews the treatments, productivities and costs of rehabilitation at each location.