Forests and Global Change

森林与全球变化

• 批准号: CRC-2021-00034
• 负责人: Baltzer, Jennifer
• 金额: $ 14.57万
• 依托单位: Wilfrid Laurier University
• 依托单位国家: 加拿大
• 项目类别: Canada Research Chairs
• 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=745125
• 关键词: Forests; Global; Change

Climate warming is occurring most rapidly in Canada's North, resulting in the intensification of natural disturbance regimes including both permafrost thaw and wildfire, and driving changes to the structure, composition and function of northern boreal forests. These changes can alter the ecosystem services provided by northern forests making the projection of change critical, given the global relevance of this ecosystem. The proposed program will focus on two aspects of boreal land cover change: permafrost thaw and wildfire, disturbances that are accelerating with climate warming and are by far the most important drivers of change in high latitude ecosystems. The nominee and her team will combine field-based studies, permanent sample plot data, and data synthesis to advance this field and integrate these advances into large-scale forecasting efforts. Combined, this will support an evaluation of rate and trajectory of changes, determination of underlying mechanisms of change and their functional implications, and globally relevant evaluations of the generality of these responses. The proposed research program will advance our understanding of the conditions under which disturbance will drive state change in these forests and use this process understanding to support upscaling and forecasting, thereby supporting decision making in northern communities and governments.

气候变暖在加拿大北部发生得最快，导致包括永久冻土融化和野火在内的自然干扰状况加剧，并推动北方北方针叶林的结构、组成和功能发生变化。这些变化可能改变北方森林提供的生态系统服务，鉴于这一生态系统的全球相关性，因此预测变化至关重要。拟议的计划将侧重于北方土地覆盖变化的两个方面：永久冻土融化和野火，这些干扰随着气候变暖而加速，是迄今为止高纬度生态系统变化的最重要驱动因素。被提名者和她的团队将结合联合收割机基于实地的研究，永久样本地块数据和数据合成，以推进这一领域，并将这些进展融入大规模的预测工作。综合起来，这将有助于评价变化的速度和轨迹，确定变化的基本机制及其功能影响，并对这些反应的普遍性进行全球相关评价。拟议中的研究计划将促进我们的条件下，干扰将驱动这些森林的状态变化的理解，并利用这一过程的理解，以支持升级和预测，从而支持决策在北方社区和政府。