Table 4 Percentage of total error (as variance) attributed to each sampling phase
| Â | Â | Regression equation based biomass | BEF-based biomass | ||
|---|---|---|---|---|---|
# | Tree component | Percentage of variance attributed to the first phase (plot selection and variability) | Percentage of variance attributed to the second phase (regression model) | Percentage of variance attributed to the first phase (plot selection and variability) | Percentage of variance attributed to the second phase (BEF model) |
1 | Taproot + stump | 62 | 38 | 63 | 37 |
2 | Lateral roots | 69 | 31 | 52 | 48 |
3 | Root system (1 + 2) | 80 | 20 | 75 | 25 |
4 | Stem wood | 89 | 11 | 95 | 5 |
5 | Stem bark | 54 | 46 | 59 | 41 |
6 | Stem (4 + 5) | 90 | 10 | 96 | 4 |
7 | Branches | 49 | 51 | 46 | 54 |
8 | Foliage | 35 | 65 | 16 | 84 |
9 | Crown (7 + 8) | 50 | 50 | 45 | 55 |
10 | Shoot system (6 + 9) | 90 | 10 | 89 | 11 |
11 | Whole tree (3 + 10) | 90 | 10 | 88 | 12 |