| Region | Agroforestry system | Soil C in AF (Mega gram, Mg C∙ha−1) | Δ Soil C (Mg C∙ha−1) |
| Tropics and subtropics | Alley cropping | 38.6 | 5.3 |
| Homegardens | 40.8 | 8.7/23.4 | |
| Silvopasture | 28.1 | −1.8 | |
| Windbreaks | 30.1 | 6.3 | |
| Temperate | Alley cropping | 17.7 | 2.2 |
| Homegardens | 30.2 | 10 | |
| Silvopasture | 36.8 | 0.7 | |
| Windbreaks | 66.5 | 0.9 |