收获遗产和气候变化相互作用,通过时间塑造森林结构和生物质
Lucien Fitzpatrick1, Bailey A Murphy2, Meghan G Midgley3
1Center for Tree Science, The Morton Arboretum, Lisle, IL, 60532, USA; School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901-8551, USA.
Journal of environmental management
|June 25, 2025
概括
森林管理遗产影响对气候变化的抵抗力对生物质的影响. 虽然最初的策略,如庇护木,可以防止中期生物量损失,但气候严重性最终会在本世纪末推动森林变化.
科学领域:
- 森林生态 森林生态
- 气候变化科学 气候变化科学
- 生态系统建模 生态系统建模
背景情况:
- 全球森林结构变化是由气候趋势驱动的,需要有效的管理策略.
- 由于气候变化相互作用,森林结构可以独立于管理目标而发生变化.
- 基于收获的管理是缓解气候变化对森林影响的关键工具.
研究的目的:
- 调查基于收获的管理对森林结构的长期影响.
- 根据不同的管理策略,评估森林对气候引起的生物质损失的抵抗力.
- 分析管理遗产和气候变化场景之间对森林动态的相互作用.
主要方法:
- 利用基于过程的生态系统模型用于美国中西部硬木森林.
- 在五年时间内模拟了四种不同的收获管理策略.
- 在两个气候变化场景下分析了地面生物质损失事件.
主要成果:
- 管理遗产对中期 (∼25年) 气候驱动的生物质损失产生了重大影响;庇护木没有显示损失事件.
- 到本世纪末,气候变化的严重程度成为主要驱动因素,随着更大的变暖导致更频繁的损失事件.
- 截获场景之间的森林结构差异在本世纪末减少.
- 生物质损失事件之前有降水量下降,有明显的先前结构受到过去管理的影响.
结论:
- 森林管理遗产为气候引起的生物质损失提供中期的抵抗力.
- 森林的长期性越来越受到气候变化严重性的影响,超过了最初的管理效应.
- 了解过去的管理和气候之间的相互作用对于预测未来的森林反应至关重要.
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