在缓解情景中利用生态系统对增强岩石气候变化的反应
Yann Gaucher1,2, Katsumasa Tanaka3,4, Daniel J A Johansson5
1Laboratoire des Sciences du Climat et de l'Environnement (LSCE), IPSL, CEA/CNRS/UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France. yann.gaucher@enpc.fr.
Nature communications
|March 28, 2025
概括
增强的岩石气候 (EW) 提供了一个可持续的二氧化碳去除 (CDR) 战略. 与耕地相比,将玄武岩应用在森林中将碳封存潜力增加了三倍,从而降低了气候缓解成本.
科学领域:
- 气候科学 气候科学
- 地质化学 地质化学
- 生态生态学 生态生态学
背景情况:
- 巴黎协定气候目标需要二氧化碳去除 (CDR).
- 碳捕获和储存 (BECCS) 的生物能源面临着可持续性问题,引发了人们对增强岩石气候 (EW) 等替代品的兴趣.
- 增强岩石气候变化 (EW) 涉及散布粉碎的酸盐岩石以吸收大气中的二氧化碳.
研究的目的:
- 分析增强岩石风化 (EW) 在成本有效的气候缓解途径中的作用.
- 评估基岩应用的地球化学和生物二氧化碳去除 (CDR) 潜力.
- 为了比较森林与农田的EW有效性.
主要方法:
- 利用一个集成的碳循环,气候和能源系统模型.
- 包括酸盐气候变化 (地化学CDR) 和由玄武岩应用增强生态系统生长 (生物CDR).
- 森林和耕地应用的模拟EW场景.
主要成果:
- 将玄武岩应用到森林中,与耕地相比,可以使碳结率从碳结中增加三倍.
- 增强的岩石气候 (EW) 降低了实现"巴黎协定"目标的总体成本.
- 电动化减少了通过碳捕获和储存 (BECCS) 对生物能源的依赖.
结论:
- 增强岩石风化 (EW),特别是在森林土地上,是一种非常有效的二氧化碳去除 (CDR) 策略.
- 电源工程可以显著降低气候减缓成本,减少对BECCS的依赖.
- 通过实地测试进行进一步的研究至关重要,以了解风速率和岩应用的潜在副作用.
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