Table 5.
ΔAGB models based on airborne laser scanning
| Stratum | Model1 | RMSE, t/ha |
|---|---|---|
| 1. Clear-cut | ΔAGB = 1.27 + 385 δdl5 | 37.1 |
| 2. Thinned | ΔAGB = -78.1 + 14.9 δpf0 + 26.1 δpf20 + 3.65 δcvf -16.3 δpl0 | 13.3 |
| 3. Recently regenerated forest | ΔAGB =2.41 + 17.9 δpf20 | 26.3 |
| 4. Young forest | ΔAGB = -56.3 + 32.2 δmeanf | 36.5 |
| 5. Spruce dominated mature forest | ΔAGB = 0.879 -233 δdf3 + 6.53 δpl10 + 13.7 δpl90 | 26.4 |
| 6. Pine dominated mature forest | ΔAGB =8.28 + 15.1 δpf50 -89.1*δdf8-7.53 δpl60 + 8.67 δpl80 | 22.2 |
1p = height percentile of vegetation echoes (0, 10,…, 90); d = cumulative canopy density above vegetation threshold (0, 1, …, 9); cv = coefficient of variation of height of vegetation echoes; mean = arithmetic mean of height of vegetation echoes; f = first echo; l = last echo.