全球卫星绘图揭示了米种植造成的陆地表面广泛冷却
Wei Weng1,2,3, Jingfeng Huang4,5,6, Chao Yue7,8,9
1State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, China.
Nature communications
|December 13, 2025
概括
在生长季节,大米田在生长季节将陆地表面降温0.21-0.27°C. 这项研究量化了大米种植的生物物理冷却效应,这对于气候调节评估至关重要.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 农业科学 农业科学
背景情况:
- 米通过温室气体排放为气候变暖做出贡献.
- 无大米通过蒸发的陆地表面冷却效应是显著的,但量化不良.
- 缺乏高质量的全球米数据,这阻碍了对其冷却影响的准确评估.
研究的目的:
- 开发一个通用的米绘图框架,以创建一个全球性的,长期的米数据集.
- 量化米种植的生物物理表面冷却效应.
- 分析田径大小与冷却强度之间的关系,包括景观溢出效应.
主要方法:
- 开发了一个通用的米绘图框架,整合了基于现象学和曲线匹配的方法.
- 构建了GlobalRice500数据集,每天具有时间和500米空间分辨率.
- 在生长季节分析了土地表面温度的变化,与米的存在有关.
主要成果:
- 田每年比其他耕地减少0.210.27°C的白天土地表面温度.
- 在大面积的田中观察到更强的冷却效应.
- 在田周围的景观中检测到部分冷却溢出效应.
结论:
- 米种植具有显著的生物物理表面冷却效应.
- 这些发现强调了在气候调节研究中考虑米的冷却影响的重要性.
- 需要进行进一步的综合评估,才能充分了解米在气候系统中的作用.
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