作为气候智能农业实践的最低耕作及其对粮食和营养安全的影响
1Department of Food Economics and Food Policy, Institute of Food Economics and Consumption Studies, Kiel University, Kiel, Germany.
PloS one
|December 22, 2023
概括
最小耕作 (MT) 农业可以提高玉米产量和饮食多样性. 持续采用这种保护性农业实践可以减少粮食不安全和小农的劳动力需求.
科学领域:
- 农业经济学 农业经济学
- 农业学是一种农业学.
- 可持续农业 可持续农业
背景情况:
- 最小耕作 (MT) 是一个关键的保护农业实践,促进生产力和农民生计.
- 关于MT采用持续时间对长期福利影响的证据仍然有限.
- 了解MT的异质影响对于弹性农业系统至关重要.
研究的目的:
- 调查MT采用长度对加纳家庭福利的微观经济影响.
- 分析MT对玉米产量,粮食安全和劳动力需求的影响.
- 在估计MT采用效应时解决选择偏差和遗漏变量问题.
主要方法:
- 利用地块层面和家庭数据与地理参考天气数据相结合.
- 采用一个有序的探头选择模型来估计过渡特定的治疗效应.
- 短期与长期MT采用的不同影响.
主要成果:
- 采用更长时间的MT显著增加了玉米产量4.33%.
- 随着持续的MT采用,饮食多样性提高了14.22%.
- 家庭粮食不安全性下降了42.31%,劳动力需求下降了11.09%.
结论:
- 持续采用最低耕作方式,给小农带来了巨大的好处.
- 促进长期的MT采用对于加强粮食安全和农业性至关重要.
- 政策干预应支持农民在长时间内保持MT实践.
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