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自然森林碳潜力的综合评估

Lidong Mo¹, Constantin M Zohner², Peter B Reich^3,4,5

¹Institute of Integrative Biology, ETH Zurich (Swiss Federal Institute of Technology), Zurich, Switzerland. lidong.mo@usys.ethz.ch.

|November 13, 2023

概括

全球森林存储的碳量远低于其自然潜力, 森林的保护和恢复有助于缓解气候变化和保护生物多样性.

科学领域:

生态学
气候科学
森林管理

背景情况:

森林是关键的陆地碳汇, 但人为土地利用和气候变化已经削弱了它们的容量.
目前用于量化森林碳损失的遥感方法存在重大不确定性.
需要对这些估计进行基准评估.

研究的目的:

评估农业和城市土地以外的全球森林碳潜力.
对森林碳潜力的地面和卫星估计进行比较.
确定全球森林碳储存中的当前赤字.

主要方法:

结合地面和卫星的方法.
在人类足迹较低的地区评估森林碳潜力.
分析了区域差异和全球一致性的数据.

主要成果:

地面和卫星估计显示出了显著的全球一致性 (12%的差异).
全球森林碳储量目前低于自然潜力的226 Gt C (151-363 Gt C).
这61%的潜力在于现有森林,而39%在于森林砍伐/碎片化地区.

结论:

森林保护,恢复和可持续管理对于减缓气候变化和生物多样性目标至关重要.
这些行动可以帮助森林恢复到成熟,增加碳储存.
森林是一个有价值的工具,

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