Fig. 3.

Time series of daytime (7:00 to 17:00) sap flux density is displayed along with stem water content (VWC_stem, panel i-p) and δ²H of transported water (panel a-h) in the different tree compartments monitored. Plots were arranged according to average daytime sap flux density in the time period from deep labeling until the onset of regular precipitation with HT (on top) and CP (at bottom) featuring the fastest and slowest sap flow, respectively. Vertical dashed lines indicate beginning of drought (yellow), first and last day of deep labeling (dark blue) and first and second post-drought rain (light blue).