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Fig. 3 | Ecological Processes

Fig. 3

From: Nitrogen addition mediates the response of foliar stoichiometry to phosphorus addition: a meta-analysis

Fig. 3

Effects of phosphorus (P) addition on foliar P concentrations at the plant community level and species level for different P addition rates, experimental durations and plant growth types. a Effects without N addition (green solid dots) and b effects with N addition (blue solid dots). The solid dots with error bars represent the effects of P addition with the 95% confidence intervals, and the numbers outside and inside the parentheses represent the effect sizes and sample sizes, respectively. The heterogeneity between subgroups (Qb) represents the difference between each grouping variable (including the P addition rates, the experimental durations, the community and species levels, and the plant growth types), and ** indicates that the effects of P addition with N addition on target variables are significantly different from the effects of P addition without N addition

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