在台湾的岛屿农业食品系统中,营养素效率和废物利用的挑战和解决方案
Yen-Tzu Fan1,2, Yi-Hsiang Lee2, Zih-Ee Lin3
1School of Agriculture, Food and Ecosystem Sciences, The University of Melbourne, Victoria, 3010Australia.
Integrated environmental assessment and management
|December 14, 2025
概括
由于营养管理效率低下,台湾损失了大量的和. 加强生物废物回收利用可以大幅减少肥料进口和温室气体排放,促进可持续的食品系统.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 系统生态学 系统生态学
背景情况:
- 可持续的营养管理对全球农业食品系统至关重要,特别是在面临资源限制的岛屿地区.
- 进口肥料,料和废物管理不善造成的高 (N) 和 (P) 损失导致肥化,排放和土壤退化,影响食品系统的弹性.
- 台湾是一个人口密集的岛屿,对外部营养投入的依赖程度很高,加剧了这些挑战.
研究的目的:
- 对台湾农业食品系统的营养物流和损失进行材料流分析 (MFA).
- 评估生物废物回收和营养回收策略对减轻环境影响的潜力.
- 为政策制定提供见解,以加强岛屿农业食品系统的营养循环.
主要方法:
- 材料流量分析 (MFA) 用于量化营养物质 (N和P) 的流入,流出和损失.
- 基于场景的评估,以评估加强生物废物回收利用 (便,食品废物,废水) 的影响.
- 对岛屿农业食品系统的营养恢复机会和政策影响的分析.
主要成果:
- 台湾进口大量的N (358.6万/年) 和P (118.3万/年).
- 每年都会发生大量的营养损失:84%的N和48%的P,主要是由于废水排放和便管理不善.
- 生物废物回收方案显示,每年可减少98,299二氧化碳等值的化肥进口和温室气体排放.
结论:
- 综合政策框架和跨部门合作对于改善营养循环,减少岛屿农业食品系统环境压力至关重要.
- 加强生物废物回收和营养回收对于可持续的粮食生产和减轻资源有限的岛屿环境中的环境负担至关重要.
- 该研究为决策者和规划者提供了可操作的见解,以制定基于科学的政策,以应对全球脆弱的农业食品系统.
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