Our modelling outputs suggested that at the coastal sites, maximum
E could be maintained for 60–80 days without any rain
events (Fig. 7), and that it would take about 100–105 days to
deplete the soil water storage enough to reach 0.2 REW, and to
start having a significant negative impacts on E (up arrows in
Fig. 7). In the Piedmont region, there was a large difference
between stand types on the impact of continuous soil drying on
the number of days required to see a significant drop in E. For
the plantation, it would take only 50 days to the start of a decline
in E and 90 days to deplete the soil enough to reach 0.2 REW,
inducing a significant (more than 20%) reduction effect in E
(Fig. 7). The unmanaged stand, on the other hand, is expected to
hold its maximum E for more than 100 days, and no significant
decrease in E would be noticeable before 150 days, or when REW
would reach 0.2.