增加循环性的干预措施,减少食品系统对环境的影响
Benjamin van Selm1,2, Hannah H E van Zanten3, Renske Hijbeek4
1Animal Production Systems Group, Wageningen University & Research, P.O. Box 338, 6700 AH, Wageningen, The Netherlands. ben.vanselm@wur.nl.
Ambio
|November 16, 2023
概括
在食品系统中实施循环,显著减少了对环境的影响. 将循环饮食与废弃物利用和均衡贸易相结合,可以将土地使用量降低40%和温室气体排放量降低68%.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 系统生态学 系统生态学
背景情况:
- 当前的粮食系统面临着重大的环境挑战,包括广泛的土地利用和高温室气体排放 (GHG).
- 循环干预提供了减轻这些环境影响的潜在解决方案.
研究的目的:
- 评估食品系统中特定循环干预措施的环境效益.
- 量化饮食,贸易和废物利用变化对土地利用和温室气体排放的影响.
主要方法:
- 使用了一种代的线性食物系统优化模型 (FOODSOM).
- 模拟场景包括循环饮食,均衡的营养进出口以及废物流的利用.
- 将环境结果与当前粮食系统的基线进行比较.
主要成果:
- 循环干预措施平均减少了40%的土地使用量和68%的温室气体排放量.
- 仅靠转向循环饮食,土地使用量就减少了43%,温室气体排放量减少了52%.
- 允许均衡的营养进出口减少了土地使用量高达34%,温室气体排放量高达26%.
结论:
- 循环干预措施在结合实施时最有效,而不是孤立实施.
- 尽量减少土地利用和温室气体排放的最佳策略包括循环饮食,废物流的利用和均衡的食品进出口.
- 食品系统的循环性为实现重大环境改善提供了一条可行的途径.
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