Fig. 4.

Community transpiration rates (T _s) of the treatments and eight different stands at different campaigns during two growing seasons. The boxes show medians and quartiles, the whiskers show 1.5 times the interquartile range of the data. For statistical analyses see Tables S6–S9. S Schorfheide, H Hainich, A Schwäbische Alb, SP12 spring 2012, LS12 late summer 2012, ES13 early summer 2013, LS13 late summer 2013. At the Schwäbische Alb in early summer 2013, we could not measure the transpiration rates at the beech unmanaged stand because of rain. In late summer 2013, we could not measure the transpiration rates at beech unmanaged and at the beech managed stand because the device was broken. We did not measure stand Schorfheide beech unmanaged, because the understory coverage was <0.5%