Fig. 2
Annual course of soil moisture index for the total soil (down to approximately 1.8 m) in the studied severe drought years; drought classes (moderate to extreme) according to Zink et al. (2016)
Fig. 2 | Annals of Forest Science
Annual course of soil moisture index for the total soil (down to approximately 1.8 m) in the studied severe drought years; drought classes (moderate to extreme) according to Zink et al. (2016)