Alberta facts on wood series fact sheets for Balsam fir, Balsam poplar, Black spruce, Jack pine, Lodgepole pine, Tamarack, Trembling aspen, White birch, and White spruce
Réduire les dommages pendants les opérations de coupe partielle
Language
French
Abstract
Ce guide aidera les opérateurs de machinerie à adopter des saines pratiques et ainsi à éviter les dommages aux cours d'eau, s'il est nécessaire d'aménager des traverses.
Using automation to maximise yield from increasingly rare and costly raw materials is a solution that can help secondary wood producers improve their profitability. By integrating an automated defect detection system, lumber producers can potentially increase production output and grade recovery, helping them to strengthen their strategic business advantage.
To develop a reference tool to assist in the choice of an appropriate defect detection system, Forintek conducted a detection capacity evaluation of commercially available equipment. Nineteen (19) manufacturers who work in the area of defect detection in lumber were contacted; of these, four agreed to participate in the study.
The project objectives were based on requests from the producers: the evaluation focussed on the detection capacity of specific defects and not on the performance of the overall system. Defects were identified and an experimental evaluation was conducted to determine if the equipment recognised the defects or not. A decision tool based on a multi-criteria analysis has been proposed in the completed project report, to help producers identify the most appropriate defect detection system. However, no evaluation can be offered for the overall performance of the systems assessed, as production needs differ from producer to producer.
La couleur est un facteur crucial lors de la fabrication de produits en bois franc d'apparence, aussi, l'uniformité de la couleur d'un produit a un impact direct sur sa valeur finale. La majorité des fabricants de composants de bois régissent le classement de la couleur selon une interprétation subjective. Des échantillons servent de référence mais le classement est influencé par les paramètres invironnants et la perception individuelle de l'observateur.
Colour is a crucial factor in manufacturing hardwood appearance products, and uniformity of colour has a direct impact on the final value of a product. Most wood component manufacturers classify colour using a subjective scale. Although reference samples are used, subjective classification is influenced by both environmental factors and individual perceptions.
Lors de la conception des structures en bois d’oeuvre, il importe que les éléments de la charpente, telles les poutres, les colonnes et les fermes, soient conçus de manière à résister aux charges prévues, puisqu’une chaîne n’est jamais plus forte que son maillon le plus faible. Il est tout aussi important que les assemblages de ces éléments soient conçus avec soin. Un assemblage doit pouvoir transmettre la charge et ses contraintes, d’un élément à un autre, en respectant des limites acceptables de déformation. Le rendement adéquat de l’assemblage importe particulièrement dans le cas des structures construites dans les régions sismiques, où la défaillance d’un assemblage peut entraîner l’effondrement de la structure lors d’un séisme important. L’introduction de divers produits du bois sur le marché a accru les occasions d’utiliser le bois dans diverses applications structurales, ajoutant ainsi à l’importance du rôle des assemblages dans les éléments structuraux.
Balsam fir is a native tree species to approximately two-thirds of the eastern Boreal forest across Canada. It is quite common in Alberta throughout the Slave Lake area and along the foothills (northern central regions of the province). Balsam fir can be found across a broad range of site conditions, preferring more shaded and competitive conditions. The species is rarely found in pure stands and is typically shorter-lived than the spruces. Balsam fir is a small-to medium-sized tree, 12 to 18 metres tall and 30 to 45 cm in diameter.
On a national level, balsam fir accounts for nearly 12% of the total Canadian forest inventory. Its greatest proportion of total growing stock is located in southeastern Canada, especially in the Maritime Provinces, where it is considered a valuable commercial species. In Alberta, balsam fir accounts for a small percentage of the province’s softwood inventory – approximately 3%.
The fact sheet describes visual, physical and working properties for this species for the wood-consuming value added sector.
Next to trembling aspen, balsam poplar is the most prominent deciduous species in Alberta’s boreal mixed forest. It is commonly found in the prairie forest transition zones throughout the south-central regions of the Boreal forest. While the species is common, it is rarely abundant. Situated mainly in mixed stands on rich soils, common associates to balsam poplar include: white spruce, aspen, paper birch and tamarack. Within Alberta, the species is widespread through Aspen Grove, Mixedwood and Lower Foothills sections of the province’s Boreal Forest Region. Apart from forested land, balsam poplar is also found on abandoned farmland, burned over areas and riverbanks. Trees are medium-sized, 18 to 24 metres tall and 30 to 60 cm in diameter.
Balsam poplar comprises 15.1% of Alberta’s hardwood inventory; about 6% of Alberta’s total forest inventory. Balsam fir is a native tree species to approximately two-thirds of the eastern Boreal forest across Canada. It is quite common in Alberta throughout the Slave Lake area and along the foothills (northern central regions of the province). Balsam fir can be found across a broad range of site conditions, preferring more shaded and competitive conditions. The species is rarely found in pure stands and is typically shorter-lived than the spruces. Balsam fir is a small-to medium-sized tree, 12 to 18 metres tall and 30 to 45 cm in diameter.
On a national level, balsam fir accounts for nearly 12% of the total Canadian forest inventory. Its greatest proportion of total growing stock is located in southeastern Canada, especially in the Maritime Provinces, where it is considered a valuable commercial species. In Alberta, balsam fir accounts for a small percentage of the province’s softwood inventory – approximately 3%.
The fact sheet describes visual, physical and working properties for this species for the wood-consuming value added sector.
Budgeting hleps you to plan and schedule your spending so you can take any necessary steps to obtain funding before a problem becomes critical. It can also hlep you identify potential improvements in the way you operate and wasy to save or invest your money. This document, prepared by FERIC provides an overview of this topic
