提高效率的化肥为全球农业生态系统减轻全球变暖潜力提供了可靠的选择
Yang Ming1, Guo Ningxi1, Zhang Jiatong1
1College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, Liaoning, China.
The Science of the total environment
|October 28, 2023
概括
提高效率的化肥 (EENF) 显著减少农田的甲和二氧化碳排放. 这些肥料为农民提供了可观的环境效益和经济利益,促进了全球粮食安全.
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:
- 提高效率的化肥 (EENF) 对于同步作物需求与供应,支持粮食安全和减少环境影响至关重要.
- 对ENF对耕地温室气体排放 (CH4和CO2) 的影响的全面评估是有限的.
研究的目的:
- 进行全球元分析,评估EENF对田和干旱土地CH4和CO2排放的影响.
- 评估使用ENF所带来的环境和经济效益.
主要方法:
- 全球对EENF在大米和干旱土地领域的应用研究的元分析.
- 对CH4和CO2排放变化的量化.
- 综合全球变暖潜在减缓的成本效益分析.
主要成果:
- 化抑制剂和涂层控制释放尿素显著降低了田中的CH4排放 (分别为24.0%和25.3%).
- 在干旱地区,使用这些EENF类型观察到类似的二氧化碳排放减少.
- 所有EENF产品都减轻了全球变暖潜力;涂层控制释放尿素提供了最大的环境收益 (76.34美元-79.35美元/ha-1).
- 尿酶抑制剂为农民提供了最高的净利,因为成本较低,产量增加.
结论:
- 欧洲农村基金在缓解农业土壤的全球变暖潜力方面发挥着至关重要的作用.
- 涂层控制释放尿素和尿素酶抑制剂分别具有显著的环境和经济优势.
- 在田上应用欧洲经济基金通常会比干旱地区带来更高的经济回报.
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