Table 5.
Rating of N flows importance, measurement complexity, evidence availability, and assessment of uncertainty.
| N flows | Potential importance for N budget calculation | Technical complexity to measure | Evidence available | Overall assessment of uncertainty |
|---|---|---|---|---|
| BNF | High | High | Low | High |
| Atmospheric deposition | Medium | Medium | Medium | Low |
| N supplements | Low | Low | NA | NA |
| NH3 from congregation areas | Medium | High | Low | High |
| N2O from congregation areas | Medium | Medium | Low | High |
| N2 from congregation areas | Medium | High | Low | High |
| N leaching ( and DON) | High | Low | Low | Medium |
| NH3 from savanna soils | Low | High | Low | Medium |
| N2O from savanna soils | Low | Medium | Low | Medium |
| N2 from savanna | Low | High | Low | High |
NA, not available.