Figure 3.

Mass-specific potential enzyme activity in June 2009 calculated using CFE estimated biomass. CFE estimated mass specific enzyme activity for (A) BG, (B) CB, (C) XYL, (D) PHOS, (E) NAG, and (F) LAP. For each substrate, asterisks indicate significant differences in mass-specific enzyme activity (P < 0.05) between the precipitation treatments without warming. Crosses indicate significant differences in mass-specific enzyme activity (P < 0.01) between temperature treatments under ambient precipitation. Substrate abbreviations are noted in Table 1. Averages and standard errors, n = 3. Note different y-axis scales in panels.