Figure 2
From: Scaling of nitrogen and phosphorus across plant organs in shrubland biomes across Northern China
Comparisons of the RMA regression slopes of N concentration and storage (solid dots), P concentration and storage (open cycles) among different STN levels (a), (d), STP levels (b), (e) and climatic regions (c), (f).
Line bars show 95% confidence intervals (CI). Letters above the line bars show the results of likelihood ratio tests (uppercase for N concentration and storage, lowercase for P concentration and storage). Slopes with the same letters are not significantly different (P ≥ 0.05), while those with different letters are significantly different (P < 0.05).
