Forest companies across Canada are interested in using laser scanners for scaling logs because it has potential for reducing scaling costs. Scanning logs over bark requires a method to obtain the under-bark diameter in order to calculate the solid wood volume. This report evaluates the methods of applying a bark factor to determine under-bark diameter. It also identifies new scanner scaling technologies for measuring bark thickness.
"La durée et les conditions de stockage des bois ronds durant
l’été ont des conséquences négatives sur la qualité, le rendement et les propriétés du bois. La perte en eau, l’apparition de fentes, de coloration et de carie ne sont que quelques-uns des problèmes pouvant survenir."
This study addressed biomass availability, harvesting, transportation, and chipping costs for the production of bioenergy in the Teslin region of Yukon. It revealed that significant volumes of standing timber below 20 cm in diameter at breast height (DBH) exist that could be utilized for bioenergy. These volumes, however, would sustain only small electricity generation capacities; however, a more efficient solution would be to utilize the biomass in district heating applications. The study also estimated harvesting, transportation, and chipping costs of low- and high-mechanized systems. These costs will have to be further validated and incorporated into an investment calculator to assess the feasibility of future bioenergy projects in Teslin.
Attracting, retaining and training labor is a challenge for forest operations in North America. FPInnovations attended the Pacific Logging Congress (PLC) in November 2015 where one of the technical sessions focused on attracting and retaining people to the industry, in particular to contractor operations. The majority of the strategies presented in this Info-Note were suggested by logging contractors presenting at the PLC. A few others gleaned from other sources were added as well.
Attirer, retenir et former la main-d’œuvre représentent des défis pour les opérations forestières d’Amérique du Nord. FPInnovations a assisté au Pacific Logging Congress (PLC) en novembre 2015, dont l’une des sessions portait sur les meilleures pratiques pour attirer et retenir les employés dans l’industrie, en particulier pour les entrepreneurs. La majorité des stratégies présentées ici ont été adoptées par les entrepreneurs forestiers qui faisaient une présentation au PLC. Nous en avons ajouté quelques autres obtenues d’ailleurs.
The Forest Engineering Research Institute of Canada (FERIC) carried out a short-term study of the Bräcke Planter mounted on an excavator. The study took place near Kamloops, B.C. on a small cutblock with slopes ranging from 0 to 35%. This report describes the planter, and its productivity and suitability for use in western Canada.
Breakage and damage caused during construction harvest by whole trees on harvested stems have has always been a concern for the sawmill industry. The financial impact of these breakage cannot be overlooked. (document in French)
Les bris et les dommages causés lors des travaux de récolte par arbres entiers sur les tiges récoltées ont toujours été une préoccupation pour les industriels du sciage. L’incidence financière de ces bris ne peut être négligée.
Breakage and other forms of stem damage are often commonplace during felling, harvesting, skidding and delimbing. However, you don't have to take it for granted: why not reduce your losses and increase your income instead? (article in French)
Les bris et autres formes de dommages aux tiges sont souvent monnaie courante lors des opérations d’abattage, de débardage et d’ébranchage. Cependant, vous n’avez pas à les prendre pour acquis : pourquoi ne pas plutôt réduire vos pertes et augmenter vos revenus?
The Forest Engineering Research institute of Canada (FERIC) conducted a study to assess the reliability, effectiveness, and cost of airborne infrared remote sensing, mapping and analysis systems used in Alberta. Field trials were conducted to develop assessment methods and to facilitate preliminary tests of the hotspot detection capabilities of two airborne infrared remote sensing systems: an AWIS (Airborne Wildfire Intelligence System) mounted on a twin-engine aircraft, and a FLIR 2000 mounted on a "birddog" aircraft. Logistic regression was used to develop probability of detection models for each of the sensor and aircraft platforms evaluated. This report also describes the development of a simple model that allows fire managers to assess the cost effectiveness of alternative technologies.
There is uncertainty regarding the effectiveness of using caulk boots vs. non-caulk hiking boots in silviculture work in the interior of British Columbia. WorkSafeBC regulation 8.23, states “caulked or other equally effective footwear must be worn by workers who are required to walk on logs, poles, pilings or other round timbers”, but does not specifically require caulk boots to be worn on steep slopes. Caulk boots are used almost exclusively by silviculture workers in coastal B.C. but are not commonly used in interior B.C. even though there are many situations where they may provide superior traction. Instead, workers in interior B.C. have a preference for non-caulk hiking boots. Workers will often select their boots based on personal preference rather than on information about the boot’s traction performance. Additional information regarding the differences in the traction of caulk boots and non-caulk hiking boots on various forest ground surfaces would help most workers make better-informed choices. Understanding the differences in traction is one of the most important factors when selecting a work boot in any situation and is especially true in the hazardous ground conditions of forest workers. For this reason, FPInnovations constructed a testing apparatus designed to measure and compare the static coefficient of friction of caulk boots and non-caulk hiking boots on four common types of ground cover surfaces in B.C. forests.
Canadian Forest Service researchers are working to estimate forest productivity at different spatial scales. Variations in productivity are best appreciated at the tree and stand level in productivity.
Les chercheurs du Service canadien des forêts travaillent à estimer la productivité forestière à différentes échelles spatiales. C’est à l’échelle de l’arbre et du peuplement que s’apprécient le mieux les variations dans la productivité.