Extended Data Fig. 2: Leaf phenology and wood growth between late summer and early spring for European beech.
From: No winter halt in below-ground wood growth of four angiosperm deciduous tree species
(a) The proportion of ring thickening in the stem in summer - autumn 2018 and spring 2019 (solid line), the proportion of yellow and fallen leaves of the crown (dashed line) in autumn 2018 and the proportion of spring leaf development (dotted line) in spring 2019. (b) The proportion of ring thickening in coarse roots from autumn 2018 to spring 2019. (c) The daily mean air temperature (purple) and soil surface temperature (green), with the dotted horizontal line indicating 5 °C. In (b) and (B) the lines indicate the predictions of GAM models, while the shaded areas indicate the predicted confidence intervals. In (c) the shaded bands indicate the minimum and maximum daily temperature range. The red dot on the map indicates the location of the studied forest stand in Belgium.
