"解决批评"改进了全球对气候变化缓解的森林再生潜力的估计
Kurt A Fesenmyer1, Erin E Poor2, Drew E Terasaki Hart3,4
1Tackle Climate Change, The Nature Conservancy, Boise, ID, USA. kurt.fesenmyer@tnc.org.
Nature communications
|June 11, 2025
概括
全球森林再生潜力低于此前的预期,可用于气候变化减缓的土地面积高达1.95亿公. 新的地图提供了保守的估计,强调了需要多样化的策略来最大限度地提高植树效益的必要性.
科学领域:
- 环境科学环境科学
- 气候变化缓解减缓 气候变化缓解减缓
- 生态生态学 生态生态学
背景情况:
- 再造林是缓解气候变化的一个关键战略.
- 现有的全球森林再生潜力图因变化性和缺乏可靠估计而受到批评.
- 准确地绘制地图对于确定最佳的复林地点和总面积至关重要.
研究的目的:
- 开发新的全球森林再生潜力的地图,以解决常见的批评.
- 根据不同的目标,提出多种复林场景.
- 为了提供更准确的估计全球再造林机会.
主要方法:
- 在多个尺度上审查了89个现有复林地图.
- 开发了八个重新造林场景,考虑了生态系统服务,社会冲突和政府政策.
- 使用了最近的高分辨率数据集,并为保守的建模采用了安全措施.
主要成果:
- 估计可用的复林面积在600万公到1.95亿公之间.
- 总净缓解潜力在每年53至2225 TgCO2e之间.
- 由于保守的建模和保障措施,估计比以前的研究小71-92%.
结论:
- 再造林潜力明显低于此前估计的.
- 同时实现多个复林目标是具有挑战性的.
- 土地和恢复动机的结合是必要的,以实现重新造林的好处.
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