Figure
1. G rowth rate (a), and C biomass (b) of algae incubated in the
leaf litter leachates of 11 tree species. White boxes are incubations
without micronutrient amendment (control treatment) and gray boxes are
incubation with micronutrient amendment (amended treatment). Boxes are
arranged according to the P content in leaf litter biomass from low to
high within broadleaf and coniferous tree groups as in Table 1.
Asterisks indicate that there is a significant difference between
control and amended treatments (p < 0.05). Different
letters indicate a significant difference among control treatments of
different leaf litter leachates.