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在田间作物和牲畜生命周期评估中的分配

Nicole Bamber¹, Roland Kroebel², Nathan Pelletier¹

¹University of British Columbia, Okanagan Campus, 226-3247 University Way, Kelowna, BC V1V1V7 Canada.

The international journal of life cycle assessment

|March 12, 2026

概括

农业中的生命周期评估 (LCA) 分配方法与ISO标准不一致. 这项研究建议优先考虑生物物理分配,以准确评估食品生产系统对环境的影响.

科学领域:

农业生命周期评估 (LCA)
环境影响评估环境影响评估
农业食品系统分析

背景情况:

田间作物和畜牧业对环境影响做出了重大贡献,通常通过LCA进行评估.
分配方法在LCA中至关重要,以便在单个过程中产生多个副产品时分离影响.
在农业食品供应链中分配ISO标准的不一致应用损害了LCA研究的严谨性和实用性.

研究的目的:

根据ISO标准评估当前的农业食品部门分配方法.
制定一致的分配方法选择建议,与 ISO 标准对作物和畜牧生产系统保持一致.

主要方法:

在过去5年中发表的126项同行评审的农业食品LCA研究的系统审查.
对这些研究中的副产品报告的分配方法的分析.
根据ISO等级和文献综述制定建议.

主要成果:

物理,基于自然科学的分配方法是最常见的,但非常多样化.
经济分配经常被使用,尽管ISO标准优先考虑基于自然科学的方法.
建议使用基于内部因果关系 (如能量/物质流) 或外部因果关系 (如含量) 的生物物理方法.

结论:

目前的农业食品LCA实践显示了与ISO标准在分配方面的不一致性.
建议优先考虑生物物理分配方法,特别是基于内部因果关系的方法,以获得一致和可靠的环境影响评估.
该研究提供了可行的建议,以提高食品生产环境影响评估的一致性和可比性.

关键词:

分配分配分配分配分配分配分配分配分配分配分配分配分配分配这是副产品.农作物农作物农作物根据ISO 14044的规定.生命周期评估生命周期评估畜牧业畜牧业畜牧业畜牧业废弃物废弃物废弃物

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