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哥伦比亚大规模牛肉生产通过生命周期评估对环境的影响:一个案例研究

Sara Arcila¹, Natalia Correa¹, Sebastián Pachón²

¹Universidad Nacional de Colombia-Sede Medellín, 050041, Medellín, Colombia.

Environmental science and pollution research international

|September 7, 2024

概括

哥伦比亚的牛肉生产对生态系统质量产生了重大影响,主要是由于土地占用. 这种生命周期评估量化了环境影响,强调了需要可持续的农业实践来确保粮食安全.

科学领域:

环境科学环境科学
农业科学农业科学
生命周期评估生命周期评估

背景情况:

全球日益增长的粮食需求需要可持续的蛋白质来源.
牛肉生产因高资源使用,温室气体排放和土地占用而面临批评.
关于哥伦比亚牛肉生产对环境的影响的可量化的数据有限.

研究的目的:

通过使用生命周期评估 (LCA) 在哥伦比亚广泛的系统中估计牛肉生产对环境的影响.
量化温室气体排放和其他与牛肉生产相关的环境负担,从原料到肥.
提供科学数据,以改善牛肉生产的可持续性,与可持续发展目标 (SDGs) 一致.

主要方法:

生命周期评估 (LCA) 方法应用于门到门的范围.
来自哥伦比亚安蒂奥克亚的一个牛肉养殖场收集的数据;功能单位:1公斤活重 (LW).
使用IPCC 2006/2019指南计算的排放量;使用Ecoinvent v3.8和Umberto LCA+软件进行LCA建模.

主要成果:

生态系统质量是受影响最大的影响类别 (77%),其次是人类健康 (17%) 和资源 (6%).
农业用地占用是生态系统质量影响的主要驱动因素 (87%),导致土壤收缩和退化.
该系统的碳足迹计算为每公斤活体重量的28.9公斤二氧化碳当量.

结论:

在哥伦比亚广泛的系统中,牛肉生产对环境产生了重大影响,特别是对生态系统质量.
土地占用是导致土壤退化和生态系统健康降低的关键因素.
调查结果强调,需要在牛肉生产中采用可持续的做法,以减轻环境影响并支持粮食安全.

关键词:

牛肉是牛肉,牛肉就是牛肉.我们的碳足迹肠道发酵肠道发酵环境决策的制定方法环境影响环境影响温室气体排放量排放量温室气体排放量生命周期评估生命周期评估

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