radiation limitation  . Increases in the frequency and severity of droughts and shorter tree residence times due to increases in growth rates caused by elevated CO2 may be additional interactive factors increasing tree mortality . Vulnerability to drought varies between tree species and sizes, with large, older trees at the highest risk of mortality . Mortality risk also varies between forest types, with seasonal rainforests appearing to be the most vulnerable to drought .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report