Table 3 R 2 and root mean square error (RMSE, in tC∙ha−1∙a−1) at the calibration and validation sites
From: Estimating the carbon fluxes of forests with an individual-based forest model
Wetzstein (calibration site) | Tharandt (validation site) | |||
|---|---|---|---|---|
R 2 | RMSE | R 2 | RMSE | |
GPP | ||||
Lit.-based (M1) | 0.73 | 7.91 | 0.59 | 10.47 |
Calibrated (M2) | 0.82 | 5.39 | 0.61 | 8.83 |
Filter-based (M3) | 0.80 | 5.72 | 0.61 | 9.57 |
Respiration | ||||
Lit.-based (M1) | 0.44 | 6.31 | 0.58 | 5.14 |
Calibrated (M2) | 0.54 | 4.64 | 0.62 | 4.92 |
Filter-based (M3) | 0.53 | 4.73 | 0.62 | 5.12 |
NEE | ||||
Lit.-based (M1) | 0.63 | 6.25 | 0.30 | 7.90 |
Calibrated (M2) | 0.66 | 5.43 | 0.38 | 6.87 |
Filter-based (M3) | 0.65 | 5.42 | 0.38 | 7.62 |