Changes and driving factors of compound agricultural droughts and hot events in eastern China

Compound droughts and hot events (or droughts) have attracted increasing attention due to their far-reaching impacts. Previous studies on these mostly focused the concurrence of meteorological extremes. The compound agricultural (CADHEs), which direct impacts production, received limited variability driving factors. In this study, we defined CADHEs based summer temperature soil moisture from Global Land Data Assimilation System (GLDAS) investigated changes potentially factors for period 1949–2014 in eastern China. Results showed increases frequency Northeast China, North South China (with 125%, 160%, 83%, respectively) except Central a decrease 39%). Furthermore, analyzed contributions individual variables (i.e., temperature) dependence quantitative manners. For most regions, increased was dominant factor CADHEs. Strengthened moisture-temperature shown play an important role increase highlighting events. This study can improve understanding extremes provide useful insights mitigation measures losses under global warming.