The effects of reforestation on forest carbon and water coupling at multiple spatial scales

多空间尺度重新造林对森林碳水耦合的影响

• 批准号: 485176-2015
• 负责人: Wei, Xiaohua
• 金额: $ 2.27万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=684144
• 关键词: effects; reforestation; forest; carbon; water

Canadian forest resources and closely-linked watershed ecosystems are undergoing significant change mainly due to increased large-scale forest disturbance, post-disturbance reforestation and climate change impacts. This research focuses on how reforestation affects two important and strategic processes, forest carbon and water, and their interactions across different spatial scales (tree, forest stand and watershed levels). Previous research has placed an emphasis on forest carbon and water coupling at an individual spatial scale, with rare attention on cross-scale comparisons. While experiments (e.g., leaf gas exchange, sap flow measurement) will be used at the tree level, a modeling approach will be implemented at the forest stand (FORECAST-Climate) and watershed (RGESSys) scales. Such a complementary and combined approach will provide a robust research framework for addressing the research objectives. Three graduate and 3 undergraduate students will be trained. This collaboration will greatly strengthen our research and management capacities in dealing with forest carbon and water resource changes, and place our Canadian industries in an advantageous position in the globe.

加拿大森林资源和紧密相连的流域生态系统正在发生重大变化，这主要是由于大规模森林干扰、干扰后重新造林和气候变化影响的增加。本研究重点关注重新造林如何影响森林碳和水这两个重要的战略过程，以及它们在不同空间尺度（树木、林分和流域水平）之间的相互作用。 以往的研究重点关注单个空间尺度上的森林碳水耦合，很少关注跨尺度比较。 虽然实验（例如，叶子气体交换、液流测量）将在树木级别使用，但建模方法将在林分（预测气候）和流域（RGESSys）尺度上实施。这种互补和组合的方法将为实现研究目标提供一个强有力的研究框架。将培养研究生3名、本科生3名。此次合作将极大增强我们在应对森林碳和水资源变化方面的研究和管理能力，并使加拿大工业在全球处于有利地位。