Table 4. Summary table showing the number of field plots, estimates for the total number of predicted trees at those plots, and 95% confidence intervals on the estimates at biome and global scales.
| Terrestrial Biome | Number of field plots | Predicted number of trees (billions) | ±2 s.d. (billions) |
|---|---|---|---|
| Boreal forests | 8,688 | 749.3 | 50.1 |
| Deserts | 14,637 | 53.0 | 2.9 |
| Flooded grasslands | 271 | 64.6 | 14.2 |
| Mangroves | 21 | 8.2* | 0.3* |
| Mediterranean forests | 16,727 | 53.4 | 1.2 |
| Montane grasslands | 138 | 60.3 | 24.0 |
| Temperate broadleaf | 278,395 | 362.6 | 2.9 |
| Temperate coniferous | 85,144 | 150.6 | 1.3 |
| Temperate grasslands | 17,051 | 148.3 | 4.9 |
| Tropical coniferous | — | 22.2* | 0.4* |
| Tropical dry | 115 | 156.4 | 63.4 |
| Tropical grasslands | 999 | 318.0 | 35.5 |
| Tropical moist | 5,321 | 799.4 | 24.0 |
| Tundra | 2,268 | 94.9 | 6.3 |
| Global | 429,775 | 3041.2 | 96.1 |
*Mangroves and Tropical coniferous biome predictions rely on models derived from Tropical moist and Temperate coniferous biomes, respectively. Given data limitations, figures associated with these biomes should be considered less reliable than those for the other biomes.