巴西温室气体库存和生态系统碳吸收的比较分析
Luis Miguel da Costa1, Aaron Davitt2, Gabriela Volpato2
1Department of Exact Sciences, São Paulo State University (UNESP), School of Agricultural and Veterinary Sciences, Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane s/n, 14884-900 Jaboticabal, São Paulo, Brazil.
The Science of the total environment
|December 8, 2024
概括
巴西 巴西 巴西 巴西.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 生态生态学 生态生态学
背景情况:
- 全球气温上升是由温室气体 (GHG) 排放驱动的.
- 巴西的主要排放来源于林业,土地利用和农业.
- 这些行业还具有碳捕获和气候变化缓解的潜力.
研究的目的:
- 分析碳排放对巴西国家温室气体库存的影响.
- 为了比较Climate TRACE和SEEG之间的温室气体库存估计.
- 调查降水和光合作用对碳去除估计和季节性变化的影响.
主要方法:
- 从Climate TRACE和SEEG清单 (2015-2022) 中对温室气体排放和吸收数据进行比较分析.
- 在生物群和像素层面进行相关性和回归分析.
- 评估降水和光合作用对碳去除估计的影响.
主要成果:
- 温室气体库存的差异每年高达1 GtCO2eq,主要是由于林业部门.
- 增加降水量和光合作用在像卡廷加这样的生物体中增加了碳去除能力.
- 卡廷加的温室气体去除占2022年巴西总去除量的近50%.
- 与SEEG相比,气候TRACE库存显示出更好地捕捉季节性变化.
结论:
- 碳去除估计是一个公开的挑战,具有改善国家库存的巨大潜力.
- 加强碳排放,特别是通过停止砍伐森林,可以大大促进实现净零温室气体排放.
- 将季节性变化纳入温室气体库存评估对于全面了解气候减缓努力至关重要.
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