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评估气候智能农业 (CSA) 实践对埃塞俄比亚生产力,适应和缓解指标的影响:一个元分析方法
Zenebe Adimassu1, Degefie Tibebe1, Lulseged Tamene2
1Alliance of Bioversity and International Centre for Tropical Agriculture (CIAT), Addis Ababa, Ethiopia.
Heliyon
|March 12, 2025
概括
埃塞俄比亚的气候智能农业 (CSA) 实践提高了作物生产率并减少了侵蚀. 虽然有好处,滴滴灌却是有益的.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 气候科学 气候科学
背景情况:
- 气候智能农业 (CSA) 实践对于提高埃塞俄比亚的农业生产力,气候变化弹性和减少温室气体排放至关重要.
- 尽管广泛采用,但缺乏对不同CSA实践对埃塞俄比亚农业生态区生产力,适应和缓解指标的影响的全面评估.
研究的目的:
- 对埃塞俄比亚的生产力,适应和缓解指标进行元分析,评估共同采用的CSA实践对其影响.
- 确定不同农业生态地区最有效的CSA实践,并为政策和实施提供基于证据的见解.
主要方法:
- 使用了一种元分析方法,合成了来自220篇同行评审文章的关于埃塞俄比亚CSA实践的数据.
- 该研究评估了20多种CSA实践,分析了它们对生产力,土壤侵蚀,排水,土壤有机物,碳捕获和水生产力的影响.
主要成果:
- 大多数CSA实践对生产率产生了积极的影响,滴灌灌显示了最高效果大小 (2.15). 农作物残留物覆显著减少了下水和土壤侵蚀 (效果尺寸为2.95).
- 各种CSA实践增强了土壤有机物和碳库存. 滴灌和缺水灌等水资源管理技术大大提高了水的生产率 (效果大小高达2.6).
- 滴灌对收入产生负面影响 (-0.74),原因是设备成本高,这表明需要进行财政政策改革.
结论:
- 在埃塞俄比亚,CSA实践为农业生产率,适应和减缓提供了显著的好处.
- 节水的灌方法是促进水资源稀缺地区作物生产的关键,但成本效益需要改进.
- 来自这次元分析的基于证据的见解可以指导CSA实践在埃塞俄比亚的可持续农业的战略实施.
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