Table 8 Biomass density ( W h ), variance (VAR Wh ), standard error (SE), and 95% confidence intervals (CI) for each component in Androstachys johnsonii trees
# | Tree component | W h (Mg ha –1 ) | VAR Wh (Mg 2 ha –2 ) | SE (Mg ha –1 ) | SE (%) | 95% CI (Mg ha –1 ) | 95% CI (%) |
|---|---|---|---|---|---|---|---|
1 | Taproot + stump | 16.2192 | 0.4725 | 0.6874 | 4.2382 | ±1.3748 | ±8.4764 |
2 | Lateral roots | 13.4005 | 0.5882 | 0.7669 | 5.7232 | ±1.5339 | ±11.4465 |
3 | Root sytem (1 + 2) | 29.6197 | 1.3296 | 1.1531 | 3.8930 | ±2.3062 | ±7.7860 |
4 | Stem wood | 75.7526 | 4.8413 | 2.2003 | 2.9046 | ±4.4006 | ±5.8092 |
5 | Stem bark | 8.8182 | 0.1757 | 0.4192 | 4.7534 | ±0.8383 | ±9.5068 |
6 | Stem (4 + 5) | 84.5708 | 5.8565 | 2.4200 | 2.8615 | ±4.8400 | ±5.7230 |
7 | Branches | 33.7612 | 4.1845 | 2.0456 | 6.0590 | ±4.0912 | ±12.1180 |
8 | Foliage | 2.7923 | 0.0880 | 0.2967 | 10.6242 | ±0.5933 | ±21.2483 |
9 | Crown (7 + 8) | 36.5535 | 4.8058 | 2.1922 | 5.9973 | ±4.3844 | ±11.9946 |
10 | Shoot system (6 + 9) | 121.1243 | 15.3491 | 3.9178 | 3.2345 | ±7.8356 | ±6.4690 |
11 | Total tree (3 + 10) | 150.7440 | 24.3521 | 4.9348 | 3.2736 | ±9.8696 | ±6.5472 |