Table 4 Linear regression test for dependence of biomass expansion factors (BEF) on diameter at breast height (DBH) in A. johnsonii
BEF = b 0 + b 1 DBH | |||||
|---|---|---|---|---|---|
# | Tree component | b 0 (± SE) | b 1 (± SE) | Probability | Adjusted R 2 |
1 | Taproot + stump | 0.1890 (±0.0115) | – 0.0027 (±0.0006) | 0.0000 | 0.1768 |
2 | Lateral roots | 0.0789 (±0.0125) | 0.0021 (±0.0007) | 0.0017 | 0.0933 |
3 | Root system (1 + 2) | 0.2679 (±0.0175) | – 0.0006 (±0.0009) | 0.4963 | – 0.0058 |
4 | Stem wood | 0.6482 (±0.0176) | 0.0005 (±0.0009) | 0.5911 | – 0.0078 |
5 | Stem bark | 0.0798 (±0.0075) | – 0.0002 (±0.0004) | 0.6314 | – 0.0084 |
6 | Stem (4 + 5) | 0.7280 (±0.0179) | 0.0003 (±0.0009) | 0.7435 | – 0.0098 |
7 | Branches | 0.2821 (±0.0376) | 0.0006 (±0.0020) | 0.7583 | – 0.0099 |
8 | Foliage | 0.0557 (±0.0055) | – 0.0018 (±0.0003) | 0.0000 | 0.2870 |
9 | Crown (7 + 8) | 0.3378 (±0.0411) | – 0.0012 (±0.0021) | 0.5838 | – 0.0076 |
10 | Shoot system (6 + 9) | 1.0658 (±0.0445) | – 0.0009 (±0.0023) | 0.7080 | – 0.0094 |
11 | Total tree (3 + 10) | 1.3336 (±0.0574) | – 0.0015 (±0.0030) | 0.6192 | – 0.0082 |