Table 8.
A summary of the simulated estimation of external benefits (US$/ha) associated with the seven CSA practices.
| Externalities | Crop rotation | Mixed cropping | Minimum tillage | Improved varieties | Integrated nutrient management | Supplementary feeding | Improved livestock housing |
|---|---|---|---|---|---|---|---|
| On-farm biodiversity | 23.40 | 32.28 | 30.67 | 12.91 | 19.37 | 6.45 | 40.00 |
| Carbon sequestration | 3.00 | 10.00 | 3.00 | 3.00 | 27.00 | 30.00 | 25.00 |
| Reduction in soil erosion | 32.50 | 87.50 | 90.00 | 20.00 | 56.00 | 50.00 | 80.00 |
| Soil biodiversity | 18.00 | 24.00 | 25.00 | 5.00 | 10.00 | 10.00 | 15.00 |
| Increased biodiversity | 8.00 | 15.00 | 11.00 | 8.00 | 29.00 | 40.00 | 38.00 |
| Social impact | 80.00 | 55.00 | 0.00 | 50.00 | 120.00 | 160.00 | 100.00 |
NB: 1 US$ was equal to 4 GHC$ at the time of the survey (June–August 2016).