缓解气损失,在极度潮湿的年份几乎不会影响作物产量
Wenfeng Liu1,2,3, Mengxue Li1,2,3, Yuanyuan Huang4
1State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing 100083, China.
Science advances
|February 28, 2024
概括
气候变化在极度潮湿的年份导致水道中大量的气损失. 一个新的自适应战略 (CLEANS) 有效地减少了这些损失,对作物产量的影响最小.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 气候科学 气候科学
背景情况:
- 气候变化导致极端潮湿年 (EWY),导致水生生态系统 (Nw) 遭受大量的气损失.
- 这些气损失的程度,驱动因素和缓解策略仍然不清楚.
- 了解这些影响对于环境可持续性和粮食安全至关重要.
研究的目的:
- 量化EWY期间对水生生态系统的损失.
- 确定极端气损失的主要驱动因素.
- 开发和评估适应性减轻气损失的战略.
主要方法:
- 全球数据集与作物建模和机器学习的整合.
- 分析历史和预测的气候变化场景 (SSP126,SSP370).
- 开发和应用气候极端适应性气战略 (CLEANS).
主要成果:
- 在历史上EWY期间,对水生生态系统的损失增加了2256% .
- 根据未来的情景,EWY和输入的预计增加将使Nw增加29120%.
- 连续几年的相对降水差异 (diffPr) 被确定为极端Nw的主要驱动因素.
结论:
- 清洁战略有效地减少了极端的气损失,通过根据diffPr.
- 清洁实现了Nw的大幅度减少,几乎没有收益率处罚.
- 这种适应性方法为气候变化下的全球环境可持续性和粮食安全提供了可行的解决方案.
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