| TERRESTRIAL ECOSYSTEMS | NPP (g/m2/yr) | AREA (106 km2) | TOTAL PRODUCTION (1012 kg/yr) |
|---|---|---|---|
| TROPICAL RAINFOREST | 2,000 | 17.0 | |
| TROPICAL SEASONAL FOREST | 1,500 | 7.5 | |
| TEMPERATE RAINFOREST | 1,300 | 5.0 | |
| TEMPERATE SEASONAL FOREST | 1,200 | 7.0 | |
| BOREAL FOREST | 800 | 12.0 | |
| SAVANNA | 700 | 15.0 | |
| CULTIVATED LAND | 650 | 14.0 | |
| WOODLAND/SHRUBLAND | 600 | 8.0 | |
| TEMPERATE GRASSLAND | 500 | 9.0 | |
| TUNDRA | 140 | 8.0 | |
| DESERT SHRUB | 70 | 18.0 |