农业部门的碳减排弹性:一个集成的LCA-GHG协议-IPCC指导方针框架用于在田中的生物肥料应用
Kyle Sebastian Mulya1, Jian Ping Tan1, Siaw Ping Yeat2
1School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang, Jalan Sunsuria, Bandar Sunsuria, 43900, Selangor, Malaysia.
Journal of environmental management
|June 4, 2025
概括
这项研究量化了马来西亚米生物肥料的生命周期温室气体 (GHG) 排放量,发现范围3排放占主导地位. 用生物肥料取代化学肥料可以显著减少农业温室气体排放.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 气候变化研究 气候变化研究
背景情况:
- 农业部门是全球温室气体 (GHG) 排放的主要贡献者,肥料发挥着重要作用.
- 现有的研究往往忽略了生物肥料的整个生命周期排放量和当地土壤条件,导致不完整的评估.
- 生物肥料为减少农业排放提供了一个有希望的替代方案.
研究的目的:
- 开发和应用一种综合方法来量化米生物肥料产品的生命周期温室气体排放.
- 解决从生命周期角度了解直接和间接排放的差距,考虑当地土壤参数.
- 评估生物肥料在减少农业总体温室气体排放方面的潜力.
主要方法:
- 使用生命周期评估 (LCA) 方法与IPCC指南和温室气体协议相结合.
- 在马来西亚的一个特定生物肥料产品的量化范围1,范围2和范围3排放.
- 进行了敏感性和场景分析,结合了当地土壤有机碳和含量.
主要成果:
- 范围3排放占整个生命周期温室气体排放总量的最大部分 (87.33%),主要是由甲驱动的.
- 范围1和范围2的排放分别占10.84%和1.83%.
- 生物肥料的上游排放仅占由于产品的成分 (生物肥料30%,化学肥料70%) 的整个生命周期温室气体排放的0.69%.
结论:
- 该研究强调了Scope 3排放在生物肥料生命周期评估中的关键重要性.
- 土壤有机碳含量的波动显著影响总温室气体排放量.
- 从化学肥料到生物肥料的全国性转变可以大幅减少农业温室气体排放,支持联合国可持续发展目标13和低碳政策制定.
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