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模拟森林管理在加拿大东部森林中减轻气候变化的潜力
Abderrahmane Ameray1,2, Yves Bergeron3,4, Xavier Cavard3,4
1Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue (UQAT), 445 Boul. de l'Université, Rouyn-Noranda, QC, J9X 5E4, Canada. amea02@uqat.ca.
Scientific reports
|September 4, 2023
概括
北克省可持续森林管理
科学领域:
- 林业科学 林业科学
- 气候变化影响气候变化的影响.
- 生态建模 生态建模
背景情况:
- 北极森林面临着由于气候变化而增加的干扰风险.
- 可持续的森林管理对于减轻这些风险至关重要.
- 碳储存是一个关键的生态系统服务,受森林动态的影响.
研究的目的:
- 在北克北极森林的各种气候和管理场景下,对生物质碳储存进行设计.
- 为了比较明确削减与部分削减策略的长期影响.
- 确定最佳的管理策略,以最大限度地储存碳并确保木材供应.
主要方法:
- 使用基于过程的动态景观模型 (PnET继承Landis-II).
- 模拟了北克三个管理单位300年 (2010-2310年) 的森林动态.
- 经过测试的场景包括业务正常 (BAU) 清除,部分清除和不收获 (保存).
主要成果:
- 与自然场景相比,基于清除的场景 (如BAU) 可能会使碳库存减少10 tC ha-1 yr-1.
- 部分砍伐策略 (50-75%的面积) 维持或改善了碳储存和针叶覆盖.
- 清除促进了叶落物种 (树,树),可能会长期抵消最初的碳损失.
结论:
- 部分砍伐策略对最大限度地提高和稳定北极森林生物质碳储存有希望.
- 这些策略可以确保木材供应,并保持与自然条件相似的物种/年龄结构.
- 实施部分削减需要适应的基础设施,并可能有助于实现气候变化下的基于生态系统的管理目标.
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