Table 1 Concentrations (g kg−1) and ratios of plant and soil nutrients (mean ± SE).
From: The coupling of leaf, litter, and soil nutrients in warm temperate forests in northwestern China
Component | Plant type/origin | C | N | P | C:N | N:P | C:P |
|---|---|---|---|---|---|---|---|
Leaf | Broadleaf | 451.60 ± 2.90b | 20.23 ± 0.73a | 1.42 ± 0.06a | 20.06 ± 1.37b | 15.19 ± 0.45a | 365.59 ± 13.89b |
Conifer | 501.06 ± 4.18a | 10.65 ± 0.49b | 0.96 ± 0.05b | 51.60 ± 3.38a | 11.63 ± 0.54b | 566.92 ± 28.63a | |
Natural forest | 461.70 ± 3.49a | 16.70 ± 0.45b | 1.24 ± 0.06a | 31.03 ± 1.79a | 14.54 ± 0.51a | 422.86 ± 16.68a | |
Plantation | 464.57 ± 5.20a | 19.73 ± 1.37a | 1.41 ± 0.07a | 32.98 ± 2.81a | 14.17 ± 0.60a | 397.45 ± 24.94a | |
All | 462.97 ± 3.01A | 18.04 ± 0.67A | 1.32 ± 0.05A | 31.89 ± 1.59A | 14.38 ± 0.39B | 411.61 ± 14.42B | |
Litter | Broadleaf | 351.70 ± 5.22b | 13.10 ± 0.34a | 0.92 ± 0.02a | 28.70 ± 0.72b | 15.28 ± 0.41a | 423.84 ± 13.15b |
Conifer | 410.42 ± 7.67a | 9.77 ± 0.42b | 0.70 ± 0.05b | 44.73 ± 1.80a | 16.02 ± 0.99a | 737.83 ± 70.86a | |
Natural forest | 365.71 ± 5.44a | 11.92 ± 0.25a | 0.85 ± 0.03a | 32.02 ± 0.75a | 15.21 ± 0.45a | 475.58 ± 15.59a | |
Plantation | 364.38 ± 8.61a | 12.86 ± 0.61a | 0.89 ± 0.04a | 32.79 ± 1.80a | 15.75 ± 0.66a | 520.80 ± 45.66a | |
All | 365.12 ± 4.85B | 12.34 ± 0.30B | 0.87 ± 0.02B | 32.36 ± 0.90A | 15.45 ± 0.38A | 495.61 ± 21.99A | |
Soil | Broadleaf | 15.81 ± 0.84a | 1.35 ± 0.07a | 0.57 ± 0.04a | 11.86 ± 0.25b | 2.84 ± 0.14a | 33.51 ± 1.77a |
Conifer | 15.43 ± 1.48a | 1.08 ± 0.08b | 0.44 ± 0.03a | 14.23 ± 0.62a | 2.89 ± 0.23a | 40.45 ± 3.46a | |
Natural forest | 17.20 ± 0.98a | 1.45 ± 0.08a | 0.54 ± 0.05a | 11.98 ± 0.27a | 3.39 ± 0.16a | 40.78 ± 2.17a | |
Plantation | 13.86 ± 1.05b | 1.09 ± 0.08b | 0.56 ± 0.03a | 12.94 ± 0.45a | 2.17 ± 0.14b | 27.95 ± 2.00b | |
All | 15.72 ± 0.73C | 1.29 ± 0.06C | 0.54 ± 0.03C | 12.40 ± 0.25B | 2.85 ± 0.12C | 35.10 ± 1.59C |
