Risk of Successive Hot-Pluvial Extremes on Crop Yield Loss over Global Breadbasket Regions
编号:19 访问权限:仅限参会人 更新:2025-10-30 10:04:26 浏览:25次 口头报告

报告开始:暂无开始时间(Asia/Shanghai)

报告时间:暂无持续时间

所在会场:[暂无会议] [暂无会议段]

暂无文件

摘要
Multiple climate extremes can coincide in time or happen sequentially and become a compound hazard. Recently, frequent occurrences of successive hot-pluvial extremes (SHPEs) have been presented, yet the risk of SHPEs on crop yield has not been investigated. Here we reveal peril of recurrent occurrences of SHPEs during intra-growing season and their connection with subsequent yield loss over breadbasket regions. Our results show an increasing trend in evolution of recurrent SHPEs during intra-growing seasons from 1979 to 2024. A significant risk of synchronized low crop yields is evident in breadbasket regions, as shown by negative yield percentage changes and linear regression analysis. XGBoost classifier model predicts a negative likelihood of 49%, 50%, 49%, and 50% for maize, rice, soybean, and wheat yield responses to the emergence of frequent SHPE events, respectively. Alternatively, XGBoost regression surpasses and explains 36% of yield variability caused by recurrent SHPEs occurrences globally for the studied crops, although it exhibits heterogeneities across different regions. The insights provide a foundation for considering the actual risk, which ultimately contributes to improving crop yield.
关键词
Compound climate extreme, Successive hot-pluvial extreme events, Crop yield, Machine learning, XGBoost
报告人
Abebe Kiflie Kabtih
PhD Student Chinese Academy of Science;Institute of Atmospheric Physics

稿件作者
Abebe Kiflie Kabtih Chinese Academy of Science;Institute of Atmospheric Physics
发表评论
验证码 看不清楚,更换一张
全部评论
重要日期
  • 会议日期

    11月20日

    2025

    11月24日

    2025

  • 11月10日 2025

    初稿截稿日期

  • 11月24日 2025

    注册截止日期

主办单位
太平洋科学协会
承办单位
Shantou University
Xiamen University
联系方式
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询