Fig. 1
Different stages of a Douglas-fir winter reddening (Livradois-Forez in 2022). The colour of needles changes from glaucous green to orange and finally to red
Fig. 1 | Annals of Forest Science
Different stages of a Douglas-fir winter reddening (Livradois-Forez in 2022). The colour of needles changes from glaucous green to orange and finally to red
Annals of Forest Science