Table 5.
Summary statistics for measured and simulated total soil organic carbon (TOC), measured between 1967 and 2012 for the Broadbalk wheat experiment. The measured values for TOC were averaged over Sections 1 and 9 (see 2.9.1).
| Plot no. | Measured |
Simulated |
||||
|---|---|---|---|---|---|---|
| Mean t C ha− 1 |
Standard deviation/ t C ha− 1 |
Mean t C ha− 1 |
Standard deviation/ t C ha− 1 |
RMSE (%) | Correlation | |
| 3 | 22.95 | 1.37 | 21.01 | 1.6 | 11.51 | 0.28 |
| 5 | 24.84 | 1.05 | 21.78 | 1.76 | 13.83 | 0.47 |
| 6 | 27.96 | 0.88 | 26.82 | 0.84 | 6.07 | − 0.08 |
| 7 | 29.57 | 0.83 | 30.39 | 0.3 | 3.88 | 0.24 |
| 8 | 29.73 | 1.12 | 31.69 | 0.53 | 7.88 | − 0.1 |
| 9 | 29.97 | 1.47 | 30.36 | 1.18 | 3.11 | 0.82 |
| 15 | 29.45 | 1.84 | 29.74 | 1.33 | 4.42 | 0.72 |
| 16 | 30.75 | 1.96 | 30.55 | 1.06 | 4.3 | 0.78 |
| 2.1 | 68.9 | 4.76 | 68.97 | 2.61 | 5.46 | 0.62 |
| 2.2 | 75.18 | 3.27 | 72.36 | 1.06 | 5.61 | 0.28 |