Figure
3. Linear regression between (a) maximal release efficiency
(V max) of dissolved organic carbon (DOC), (b)
maximal total release amounts of DOC (TRA C) and
(c) total dissolved phosphorus (TDP) per mg leaf litter dry mass
(TRA P) against P contents in leaf litter. Open
circles in subplots denote observed maximal release efficiency
(Max-VE ) from the incubation experiments that are
estimated for tree species with V max> 100% (P release from Erman’s birch, oak (young),
Japanese larch and hinoki cypress). Numbers signify tree species in the
order outlined in Figure 2. Significant linear regression and the
estimated 95% confidence interval of the linear fitting are presented
as solid lines and shaded areas.