If you build it, will they come? On the potential ecological and social benefits of assisted tree migration

如果你建造它，他们会来吗？

• 批准号: 549221-2020
• 负责人: Munson, AlisonDaleAD
• 金额: $ 4.66万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=765383
• 关键词: build; will; they; come; potential

Our forests provide irreplaceable benefits and services to Canadians, and demands for these will continue to increase in the next decades. Parallel to increasing needs is a changing climate where climbing temperatures will push the optimal growth conditions of many commercial species northward. The mixedwood forest that straddles much of eastern Canada will respond to these changes and require that we develop adaptation measures to ensure its continued renewal and productivity. Our team of university and government scientists will take advantage of a large, operational-scale demonstration of assisted migration, to develop new knowledge to support provincial and national policies around forest adaptation. In 2019, eight species and three provenances (of each species) analogue to present and future climates, were planted out in mixed species plantations under different silvicultural treatments. We manipulated canopy removal (partial vs complete), control of vegetation competition (control vs no control), and herbivory of large herbivores (exclosure vs no exclosure). With a team of 4 students (3 PhD, 1 MSc), as well as substantial support from the Quebec government, we will answer four fundamental and applied questions about assisted tree migration. What kind of species interactions might be affected by different tree phenology? How will insects and amphibians respond to tree provenances planted outside their range? How will the microbial communities on leaves and roots of seedlings vary according to provenance? How do different forest users such as local communities and professional foresters perceive the assisted migration approach. The answers to these questions will inform new forest management strategies of government agencies across Canada.

我们的森林为加拿大人提供不可替代的福利和服务，对这些森林的需求将在未来几十年中继续增加。与增加需求的平行是气候变化，攀岩温度将推动许多商业物种的最佳生长条件向北推动。跨加拿大东部大部分地区的混合木森林将对这些变化做出反应，并要求我们制定适应措施，以确保其持续的更新和生产力。我们的大学和政府科学家团队将利用辅助移民的大型运营尺度展示，以发展新知识，以支持围绕森林适应的省和国家政策。在2019年，在不同的造林治疗下种植了八个物种和三种（每种物种）的类似物和未来气候的类似物。我们操纵冠层去除（部分与完整），对植被竞争的控制（对照与无控制）和大型草食动物的草食（排除与无公开）。有一个由4个学生组成的团队（3级，1名MSC），以及魁北克政府的大力支持，我们将回答有关辅助树迁移的四个基本和应用的问题。什么样的物种相互作用可能会受到不同树地的影响？昆虫和两栖动物将如何应对在其范围之外种植的树木证明的反应？幼苗的叶子和根部的微生物群落会如何根据来源而变化？当地社区和专业森林人等不同森林使用者如何看待辅助移民方法。这些问题的答案将为加拿大政府机构的新森林管理策略提供信息。