Table 5. Model description for aboveground biomass (AGB) estimates.
| No | Models | Forest type | N | DBH (cm) | WD (g cm-3) | Valid Region |
|---|---|---|---|---|---|---|
| 1 | AGB = exp(-2.289+2.649ln(DBH) -0.021ln(DBH2)) | M | 170 | 5.0–148.0 | Global | |
| 2 | AGB = 0.0509WDDBH2H | M | 2410 | 5.0–156.0 | Global | |
| 3 | AGB = 0.11WDDBH2.62 | S | 29 | 7.6–48.1 | 0.60 | Indonesia |
| 4 | AGB = 0.0829DBH2.43 | S | 136 | 0.1–28.7 | 0.35 | Malaysia |
| 5 | AGB = exp(-3.051+0.966ln(DBH2H) +0.305ln(WD)) | M | 300 | 1.8–115.0 | 0.63 | Vietnam |
Models: (1) Brown [1], (2) Chave et al. [3], (3) Ketterings et al. [16], (4) Kenzo et al. [8] and (5) FG-aggregated model (this study). DBH, H, and WD indicate stem diameter at breast height, tree height and wood density, respectively. Forest type: M is tropical moist mature forest, S is tropical secondary forest. N is the number of sample trees. DBH is the diameter range of sample trees and WD is the mean wood density of sample trees used to develop the model.