Fig. 2: Effects of P addition, either alone or combined with N addition, on soil enzyme activities, enzymatic stoichiometries, and vector length.
From: Nitrogen deposition alleviates phosphorus-induced imbalances in soil enzyme stoichiometry
a Effect size for C-acquiring enzyme activities; b Effect size for N-acquiring enzyme activities; c Effect size for P-acquiring enzyme activities; d Effect size for vector length; e Effect size for enzyme C:N ratio; f Effect size for enzyme C:P ratio; g Effect size for enzyme N:P ratio. Values are expressed as means ± 95% confidence intervals (CIs). The scatters indicate the effect value of the original data. If 95% CIs did not overlap zero, the nutrient addition effect was considered significant. Ns indicates nutrient addition had no significant effect on enzyme activities, enzymatic stoichiometries, and vector length.
