Figure 3 | Scientific Reports

Figure 3

From: Increased nitrogen supply promoted the growth of non-N-fixing woody legume species but not the growth of N-fixing Robinia pseudoacacia

Figure 3

Effects of different levels of nitrogen deposition on leaf traits in Sophora japonica, Robinia pseudoacacia, and Senna surattensis. (A) Specific leaf area (n = 5–7); (B) Chlorophyll concentration (n = 5–7); (C) Leaf nitrogen (N) concentration (n = 5–7); (D) Leaf phosphorus (P) concentration (n = 5–7); (E) Leaf nitrogen to phosphorus (N:P) ratio (n = 5–7); (F) Maximum quantum yield (Ymax) (n = 5–7); (G) Effective quantum yield (Y) (n = 3); (H) Photochemical quenching (qP) (n = 3); (I) Non-photochemical quenching (NPQ) (n = 3). Different letters for each species denote significant differences (p ≤ 0.05).

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