Hybrid poplar productivity under high forest and short rotation woody crop systems under boreal conditions

北方条件下高林和短轮伐期木本作物系统下的杂交杨生产力

• 批准号: 529894-2018
• 负责人: DesRochers, Annie
• 金额: $ 0.36万
• 依托单位: Université du Québec en Abitibi-Témiscamingue
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=697702
• 关键词: Hybrid; poplar; productivity; under; forest

Hybrid poplars have the fastest growth potential of all tree species found in Canada. Their use is however relatively recent in the boreal zones of Canada, and some uncertainties remain in relation to their hardiness and growth performance under differing sites conditions and silvicultural management scenarios. Using already-established plantations, we first want to determine the effects of environmental factors and cultivation practices on the yields of fast growing hybrid poplar plantations. More specifically, we seek to 1) evaluate the yield potential of several hybrid poplar cultivars planted along a large pedo-climatic gradient covering the Abitibi-Témiscamingue and Nord-du-Québec regions and 2) determine the effects of cultural system (i.e. high forest plantation vs. short rotation coppice) and fertilization on plantation yields. Ultimately, we seek to determine the set of pedo-climatic conditions and cultivar characteristics (e.g. branch form, root system, physiology), and cultivation practices that are conducive to greater yields in the clay belt region or north western Quebec. Results of this project will allow the Canadian industry operating under boreal conditions to choose appropriate management practices to maximize biomass yields under high forest and short-rotation woody crops systems. The results will guide management (industrial and regulators) and materialize the use of these fast-growing plantations in the toolset of foresters to produce at least part of their timber supply, close to mills, and ultimately be less reliant on natural forests and alleviate wood shortages and harvesting limitations on public lands.

在加拿大发现的杂种杨树的生长是在加拿大发现的。种植园。我们寻求1）评估沿着大型pedo级梯度种植的严重性杨树的产量，涵盖了Abitibi-du-du-québec区域，并确定文化系统抗性的影响）和种植园的受精。在高森林和短旋转木质农作物系统下，操作的北方北方北方条件以最大化生物量，以最大程度地提高生物量。最终在天然林上减轻了木材短缺，并收集了对UBLIC土地的限制。