解决臭氧污染问题,促进联合国可持续发展目标2:确保全球粮食安全
Surat Dewan1, Simran Bamola1, Anita Lakhani1
1Department of Chemistry, Dayalbagh Educational Institute, Agra, 282005, India.
Chemosphere
|November 15, 2023
概括
热带层臭氧通过降低作物产量,特别是在印度和中国,严重威胁全球粮食安全. 迫切的政策变化和作物适应战略对于减轻这些不利影响和实现可持续发展目标2至关重要.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 植物生理学 植物生理学
背景情况:
- 热带层臭氧是主要的空气污染物,对农业产生重大负面影响.
- 臭氧污染加剧了实现全球粮食安全和可持续发展目标2的挑战.
- 印度和中国等国家的高人口,快速城市化和区域污染源加剧了与臭氧有关的农业风险.
研究的目的:
- 审查热带层臭氧升的原因和影响,特别是在印度和中国.
- 阐明臭氧影响植物生理和基因表达的细胞机制.
- 评估臭氧暴露对作物产量和全球粮食安全的经济价值的风险.
主要方法:
- 关于热层臭氧,其原因和对作物的影响的科学文献的审查.
- 对暴露于臭氧的植物细胞通路和基因表达变化的分析.
- 利用响应函数将臭氧暴露测量与作物产量和经济损失联系起来.
主要成果:
- 暴露于臭氧会触发植物中的特定细胞通路,改变与重要生理过程相关的基因表达.
- 农作物产量和森林生物质的显著减少与高水平的热层臭氧有关.
- 量化臭氧引起的产量和经济损失对于了解对粮食安全的威胁至关重要.
结论:
- 政策制定者必须实施减少臭氧前体排放的战略,例如提高车辆燃油效率和促进更清洁的能源.
- 开发耐臭氧作物品种和在关键生长阶段实施保护措施至关重要.
- 建立与臭氧相关的植被保护标准是必要的,以保障农业生产率.
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