印度牛的甲排放:基于场景的综合研究
Suvha Lama1, Lakshmikanthan Periyaswami2, Harish Barewar3
1CSIR- National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 200201, India.
The Science of the total environment
|September 27, 2025
概括
印度牛的甲排放可以通过先进的管理技术显著减少. 优化无氧消化与热电联产 (CHP) 等实践提供了显著的气候效益和能源潜力.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 牛中的甲 (CH4) 是印度农业温室气体排放的重要来源.
- 准确的,关于这些排放的地区级数据对于有效的减排战略至关重要.
研究的目的:
- 在2012年和2019年,对印度牛的甲排放进行微型/地区级评估.
- 评估六种不同的肥料管理场景在减排和碳节约方面的潜力.
- 探索优化甲转化因子 (MCF) 对缓解潜力的影响.
主要方法:
- 利用IPCC的Tier 2方法与印度特定的参数进行排放计算.
- 698个行政区的空间建模甲排放.
- 模拟了六种肥料管理场景,包括无氧消化,生物气燃烧和热电联合发电 (CHP) 的利用.
主要成果:
- 2019年甲总排放量估计为27.45Tg CO2e/年,其中西孟加拉邦,北方邦和中邦被确定为热点.
- 第4场景 (无氧消化与热力发电) 显示了最高的减排潜力 (85.65%),而第6场景实现了最大的绝对碳节约.
- 将甲转化因子 (MCF) 从10%优化为1%,减缓潜力提高了153%.
结论:
- 气候智能化肥料管理为印度的甲减排和分散能源生产提供了变革性的潜力.
- 目前生物气基础设施的利用率远低于国家潜力.
- 该研究提供了可行的策略,以使便管理与印度的气候目标保持一致,包括NDC,SDG和2070年净零目标.
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