印度干旱季粮食的气候弹性
Ruth DeFries1,2, Shefang Liang3,4, Ashwini Chhatre5
1Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, 10027, USA. rd2402@columbia.edu.
Scientific reports
|June 20, 2023
概括
小麦产量对气温上升非常敏感,与不同. 提供了一个更适应气候变化的替代品,用于印度的冬季谷物生产,尽管需要提高产量.
科学领域:
- 农业科学 农业科学
- 适应气候变化 适应气候变化
- 农业学是一种农业学.
背景情况:
- 印度是全球主要的小麦生产国,但气温上升对作物产量构成威胁.
- ,一个传统的冬季谷物,种植面积大幅下降.
- 了解这些主食作物的气候敏感性对于粮食安全至关重要.
研究的目的:
- 评估小麦和产量对历史温度变化的敏感性.
- 为了比较小麦和的水需求和水足迹.
- 预测未来气候变化对这些作物的影响.
主要方法:
- 对小麦和的历史温度数据和作物产量记录的分析.
- 农作物用水需求 (毫米) 和水足迹 (每m3) 的比较.
- 建模未来的气候预测,以估计产量和水足迹变化.
主要成果:
- 在整个生长阶段,小麦产量对每日最高温度的增加表现出显著的敏感性.
- 与小麦相比,麦对温度升高的敏感性较小.
- 小麦的作物水需求较高,但由于产量更高,每的水足迹较低.
结论:
- 为印度的拉比 (冬季) 季节提供了一种可行的,气候适应性强的小麦替代品.
- 未来的气候预测表明,小麦产量可能下降,水足迹增加.
- 提高产量对于农民的利能力和有效地利用土地资源至关重要.
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