Table A10.
Annual sequestration or emission of CO2 by soil for respective land areas used by each system and impacts on system greenhouse emission intensity.
| Crop Complex | Calf-Fed | Yearling-Fed | ||
|---|---|---|---|---|
| Non implanted | Implanted | Non implanted | Implanted | |
| kg CO2 yr−1 | ||||
| Hay and Haylage | 7,086 | 7,086 | 9,384 | 9,509 |
| Old pasture | 173,777 | 173,777 | 173,777 | 173,777 |
| New pasture | 0.0 | 0.0 | 113,716 | 113,716 |
| Silage (loss) | −45,238 | −45,293 | −58,809 | −60,061 |
| Grain(loss) | −33,291 | −34,444 | −41,142 | −43,975 |
| Total system net sequestration | 102,334 | 101,126 | 196,926 | 192,966 |
| System Net Emission (kg CO2 yr−1) | 819,773 | 827,218 | 1,022,733 | 1,044,116 |
| System Net Emission/ ha (kg CO2 yr−1 ha−1) | 2,573 | 2,596 | 2,535 | 2,564 |
| Live wt. (kg ) | 75,399 | 79,789 | 92,265 | 98,587 |
| Carcass wt. (kg) | 43,717 | 46,731 | 54,148 | 58,317 |
| Live wt. (kg ha−1) | 236.7 | 250.4 | 228.7 | 242.1 |
| Carcass wt. (kg ha−1) | 137.2 | 146.6 | 134.2 | 143.1 |
| GHG Intensity, kg CO2 kg−1 live weight | 10.9 | 10.4 | 11.1 | 10.6 |
| GHG Intensity, kg CO2 kg−1 carcass weight | 18.8 | 17.7 | 18.9 | 17.9 |
| GHG Intensity, kg CO2 kg−1 live weight yr−1 | 11.7 | 11.1 | 19.4 | 18.5 |
| GHG Intensity, kg CO2 kg−1 carcass weight yr−1 | 20.2 | 19.0 | 33.0 | 31.2 |