Fig. 3
From: Dynamics of multiple metallic elements during foliar litter decomposition in an alpine forest river

Dynamics of metallic element concentrations in decomposing foliar litter during different periods (mean ± SD, n = 9). Different lowercase letters indicate that the metallic element concentration in the foliar litter type differed significantly among different periods (P < 0.05). The designated periods were divided based on the freeze-thaw dynamics according to our previous investigations at the study site