水科学进展2025，Vol.36Issue(4)：553-565,13.DOI:10.14042/j.cnki.32.1309.2025.04.002
骤发干旱对全球农业基地粮食产量的影响
Impacts of flash droughts on crop yields across global agricultural regions
摘要
Abstract
Recent research on agricultural drought mainly focuses on traditional drought events,with limited assessments of flash droughts.Moreover,existing studies often neglect the differential responses of crops to flash droughts across various growth stages and irrigation regimes.To address these gaps,multisource datasets,including global crop yield data,phenological data,rain-fed and irrigated system data,and soil moisture data,were integrated to develop a flash drought identification method that accounts for the drought onset speed.Via the use of this approach,we extracted global flash drought events and systematically evaluated their impacts on crops in major agricultural regions worldwide.The results demonstrated that:①Global flash drought events increased significantly from 1940 to 2022,with a notable increase in drought onset rates.②Crops exhibited increased vulnerability to flash droughts at the emergence to milk-ripe growth stages.③Among the different irrigation systems,rain-fed agricultural areas were most severely affected by water scarcity induced by flash droughts,whereas groundwater-irrigated crops demonstrated superior resilience.This study provides valuable insights for risk prevention and control to ensure global food security.关键词
骤发干旱/全球作物/作物物候/粮食产量/雨养系统/灌溉系统Key words
flash drought/global crop/crop phenology/crop yield/rain-fed system/irrigated system分类
农业科技引用本文复制引用
史锐光,刘懿,张欣雨,朱烨,任立良,朱萧同,刘禹..骤发干旱对全球农业基地粮食产量的影响[J].水科学进展,2025,36(4):553-565,13.基金项目
国家自然科学基金项目(42171021 （）
U2243203)The study is financially supported by the National Natural Science Foundation of China(No.42171021 （）
No.U2243203). （）
