降低抗生素对作物生产的风险需要在值内加强土地系统
Fangkai Zhao1, Lei Yang2,3, Haw Yen4,5
1School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, China.
Nature communications
|September 29, 2023
概括
土地系统的强化增加了土壤的抗生素污染,威胁到中国的作物生产. 减少强化对减轻风险和确保可接受的作物产量至关重要.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 土地系统的强化促进了作物生产,但引入了土壤抗生素污染.
- 这种污染对可持续农业和粮食安全构成重大威胁.
研究的目的:
- 为了预测土壤抗生素污染对中国各地作物生产的风险.
- 将这些风险与土地系统强化因素联系起来,例如耕地扩张和投入增加.
主要方法:
- 对土壤抗生素污染风险的地理规模分析.
- 将污染风险与土地系统强化指标联系起来.
- 模拟作物生产对不同污染风险水平的反应.
主要成果:
- 预计当土壤抗生素污染风险超过8.30-9.98.98时,农作物产量将大幅下降.
- 陆地系统占抗生素污染风险变化的21-66%.
- 与玉米和大米相比,蔬菜和小麦的生产显示出不同的风险收益权衡强化门.
结论:
- 土地系统的强化必须在确定门以下进行管理,以保持可接受的抗生素污染风险.
- 缓解土壤抗生素污染对于在土地利用加剧下可持续的作物生产至关重要.
- 需要特定地点的管理策略,以平衡不同作物的强化和污染控制.
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