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Table 5 ΔAGB models based on airborne laser scanning

From: Forest biomass change estimated from height change in interferometric SAR height models

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

  1. 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.