探索生物炭的负排放潜力,以实现中国的碳中和目标
Xu Deng1, Fei Teng2, Minpeng Chen3
1Institute of Energy, Environment and Economy, Tsinghua University, Beijing, 100084, China.
Nature communications
|February 5, 2024
概括
在中国,生物炭每年可以封存高达920亿的二氧化碳. 这种碳捕获技术为负排放提供了具有成本效益的解决方案,支持中国.
科学领域:
- 环境科学 环境科学
- 气候变化缓解缓解 气候变化缓解
- 农业科学 农业科学
背景情况:
- 将全球变暖减缓到1.5°C需要负排放技术.
- 生物炭提供碳封存,对土壤和作物有益.
- 不确定性阻碍了中国的生物炭部署.
研究的目的:
- 分析生物炭在中国的负排放潜力.
- 评估经济情况并确定生物炭的优先部署地点.
- 为了研究来自多种原料的生物炭.
主要方法:
- 生物碳系统的空间显式分析.
- 对负排放潜力和成本的评估.
- 确定优先部署地点.
主要成果:
- 生物煤具有每年高达0.92亿二氧化碳的负排放潜力.
- 平均净成本为每二氧化碳90美元.
- 生物炭的部署可以在2060年之前实现中国的碳中和目标.
结论:
- 生物炭是中国可行的负排放技术.
- 可持续的生物炭部署可以对气候目标作出重大贡献.
- 解决不确定性将有助于国家一级的生物炭实施.
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