气候变化引起的洪水对布基纳法索的收获失败的影响:案例研究
Charlotte Müller1,2, Windpanga Aristide Ouédraogo3, Maximilian Schwarz4
1Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany.
Frontiers in public health
|August 24, 2023
概括
洪水严重影响布基纳法索的收获失败,近一半的农民报告洪水损害. 这项研究强调了需要新的农业战略来应对因极端天气事件造成的作物损失.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 粮食安全 粮食安全
背景情况:
- 气候变化在全球范围内加剧了极端天气事件.
- 撒哈拉以南非洲的研究往往忽视了洪水对农作物的影响,而是关注干旱.
- 这项研究调查了布基纳法索农村地区因洪水而导致的收获失败.
研究的目的:
- 评估洪水对布基纳法索农作物产量的影响.
- 用卫星图像验证农民报告的洪水数据.
- 量化与洪水相关的收获失败造成的粮食能源和经济损失.
主要方法:
- 布基纳法索努纳的一个案例研究 (2021年8月至12月),180名农民参与.
- 关于洪水和收获损失的农民采访.
- 使用Sentinel-2卫星图像验证洪水报告.
- 对短期极端降雨和50年累积降雨数据的分析.
- 食品能源和经济损失的估计.
主要成果:
- 49%的农民报告说,他们的田地受到洪水破坏.
- 7%的田地经历了完全的作物损失,8%因洪水而遭受部分损失.
- 哨兵-2卫星数据证实了农民报告的洪水事件.
- 在Nouna观察到降雨不规则性增加和累积降雨.
- 计算估计每公被洪水淹没的作物能量损失.
结论:
- 与洪水有关的收获失败对撒哈拉以南非洲的粮食安全构成重大威胁.
- 这项研究提供了证据,证明需要农业适应和减缓战略.
- 遥感数据可以支持政策制定,用于管理易受洪水影响的田地.
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