检测气象对中国河北省面包小麦质量的影响,基于渐变增强决策树的基准
Xinyue Zhang1, Keyao Chen2, Kuo Li1
1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.
Frontiers in plant science
|June 19, 2023
概括
气候变化影响小麦谷物蛋白含量 (GPC). 最佳的GPC取决于度,阳光,温度和湿度,因地区而异. 了解这些因素有助于制定适应性粮食安全战略.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 农业学是一种农业学.
背景情况:
- 对于粮食安全至关重要的小麦谷物质量,与产量相比,经常被忽视,特别是在气候变化下.
- 谷物蛋白含量 (GPC) 是小麦质量的关键指标,受到环境因素的重大影响.
- 了解气象条件和GPC之间的关系对于制定气候变化适应战略至关重要.
研究的目的:
- 在关键的现象学阶段确定影响小麦粒蛋白含量 (GPC) 的关键气象条件.
- 调查气候变量对区域小麦质量差异的影响.
- 提供关于气候变化与小麦质量之间的联系的见解.
主要方法:
- 利用了来自中国河北省的小麦GPC数据 (2006-2018) 和相应的气象数据.
- 采用渐变增强决策树模型来识别关键影响变量.
- 分析了气象因素对GPC在北38.0°南北的不同影响.
主要成果:
- 度,积累的日照时间,积累的温度和填充到成熟期间的平均相对湿度被确定为影响GPC的关键因素.
- 在北38.0°以南的地区,GPC随着度的增加而下降;高GPC需要至少515°C的累积温度和填充成熟期的相对湿度>59%.
- 在北38.0度以北的地区,GPC随着度的增加而增加,主要与生长季节>1500个日光小时有关.
结论:
- 气象因素显著影响区域小麦的质量,在北38.0度以北和南观测到不同的模式.
- 研究结果支持量身定制的区域规划和适应性战略,以减轻气候变化对小麦质量的影响.
- 这项研究为在不断变化的气候条件下保护小麦生产和粮食安全提供了科学基础.
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