• No results found

The experiences of the British Columbian and Quebec producers using white birch as a raw material illustrate quite different situations within the same country. The quality of the white birch resource in British Columbia is still better (larger diameters) than in Quebec but processing technologies in British Columbia have not been optimized. On the other hand, Quebec’s problem with small diameter white birch

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has been partially overcome by the use of advanced processing technologies and a client-oriented approach, which generates an acceptable financial return for the producer.

Although sawmill infrastructure is quite different between the two cases, both producers encounter considerable problems with log supply. Their experience shows that forest harvesters are not always interested in considering, in their daily operations, the producers’ needs in terms of log volumes and quality, a situation that is quite deplorable. Communication and understanding of one another’s need is indeed crucial to achieving optimized and sustainable use of the white birch resource (as well as all other forest resources) and to solving supply problems. This is increasingly important as Canadian sawmills’

dependence on hardwood timber imported from the United-States has steadily risen in the past ten years.

Moreover, efforts must be made to promote value-added processing instead of marketing this forest resource primarily as rough lumber as is the case today.

10 Conclusion and Recommendations

Although white birch is often spread out and mixed in with other species, the availability of the white birch resource throughout Canada is confirmed in this literature review. The large and unused volume of white birch that is currently available justifies the development of further research projects to promote sustainable utilization of the resource. Six research areas have been identified and are strongly recommended for future research.

Silviculture Research is greatly needed on the effects of silvicultural treatments (e.g., thinning) on wood properties for different stand conditions and on tree genetics in order to select trees that could offer superior characteristics (e.g., in volume growth, stem straightness, wood density, high sapwood proportions). Since white birch is a pioneer species that colonizes harvested stands relatively quickly, there is great potential for developing silvicultural methods that would promote volume growth and stem quality while reducing rotation time. A shorter rotation time would benefit white birch owing to ever-increasing hardwood demand.

Forest operations and resource allocation The development of integrated and cost-effective logging operations that include the systematic recovery of white birch stems simultaneously with the harvesting of other species is greatly needed. Today, white birch trees are often left standing in newly harvested stands.

The considerable change in light conditions after neighbouring species are harvested stresses white birch trees, and lead to their deterioration within a few years. Then this high value resource is only good for firewood or humus. Better communication among forest managers, forest harvesters and mill managers is therefore crucial to the development of a white-birch-based industry.

Processing Processes all need to be documented in relation to the specific use (product) for the white birch resource. Studies should be conducted by province, region and industry sector to identify which production strategies are currently in use or need to be developed to enhance financial return. Once this information is available, it will be easier to develop new technologies geared to the white birch resource.

Other unconventional processes (e.g., finger jointing) could be explored for the use of small dimension pieces.

Value-added products A considerable number of publications lament the fact that much of the hardwood lumber produced in Canada is exported without any further processing. Not taking advantage of this great potential is deplorable and efforts must be made to change the structure of the forest industry. This applies

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to conventional hardwoods as well as under-utilized species such as white birch. It is essential for Canada to cease thinking in terms of being “bulk producers of rough lumber” and start thinking along the lines of being innovative “producers of wood components or final value-added wood products.” This major cultural shift is slowly taking place in the forest industry sector. However, research and development addressing the entire production chain from the forest to the final value-added product will be needed for the industry to optimize processes and logistics, and secure a solid financial return.

Marketing An awareness campaign focussing on white birch characteristics and potential is needed to promote the true value of the species. There is an urgent need to advance the idea that white birch wood is worth much more than just firewood, particularly through value-added product applications. Very few marketing studies consider white birch. Most of the studies addressed developments in terms of general hardwood species, whereas others grouped white and yellow birch together as one birch species.

Specific marketing work needs to be done by province, region and industrial sector to promote acceptance of existing and potential uses of white birch.

White birch forest-to-product database Finally, to advance basic knowledge on the species, a white birch database should be developed covering the entire chain of production from the forest to the value-added end products. Such a reference database would generate comprehensive information on actual processing steps and also be useful for simulation and optimization in future research.

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