From: Carbon fraction of Pinus radiata biomass components within New Zealand
a | Carbon stock estimates based on a carbon fraction of 0.50 g C g−1dm | ||||||||
Stand age (years) | Stem wood | Stem bark | Branches | Needles | Cones | AGL C | AGL C seq | ||
2 | 0.09 | 0.03 | 0.06 | 0.18 | 0.00 | 0.36 | 0.36 | ||
4 | 3.60 | 0.64 | 3.28 | 3.58 | 0.00 | 11.1 | 5.37 | ||
6 | 11.3 | 1.46 | 7.49 | 5.78 | 0.00 | 26.0 | 7.48 | ||
8 | 23.0 | 2.63 | 11.9 | 2.96 | 0.05 | 40.5 | 7.24 | ||
9a | 14.5 | 1.80 | 2.77 | 1.70 | 0.30 | 21.1 | |||
10 | 24.8 | 2.39 | 5.69 | 2.93 | 0.11 | 35.9 | 14.8 | ||
17 | 107.4 | 10.9 | 11.0 | 5.41 | 2.51 | 137.3 | 14.5 | ||
22 | 121.8 | 13.7 | 13.7 | 4.64 | 1.61 | 155.4 | 3.61 | ||
29 | 168.7 | 16.2 | 12.8 | 4.10 | 4.65 | 206.4 | 7.29 | ||
Residues following harvesting of stem wood plus bark | 25.3 | 2.4 | 12.8 | 4.10 | 4.65 | 49.3 | |||
Residues following harvesting of stem wood only | 25.3 | 16.2 | 12.8 | 4.10 | 4.65 | 63.0 | |||
b | Carbon stock estimates based on the revised component-specific carbon fractions for radiata pine | ||||||||
Stand age (years) | Stem wood | Stem bark | Branches | Needles | Cones | AGL C | AGL C seq | C sequestration change (%) | C stock change (%) |
2 | 0.08 | 0.03 | 0.06 | 0.19 | 0.00 | 0.36 | 0.36 | 1.6 | 1.6 |
4 | 3.58 | 0.64 | 3.33 | 3.68 | 0.00 | 11.2 | 5.43 | 1.2 | 1.2 |
6 | 11.3 | 1.5 | 7.6 | 5.94 | 0.00 | 26.3 | 7.55 | 1.0 | 1.1 |
8 | 22.9 | 2.8 | 12.1 | 3.04 | 0.05 | 40.9 | 7.27 | 0.4 | 0.8 |
9a | 14.5 | 1.9 | 2.8 | 1.75 | 0.31 | 21.3 | 0.8 | ||
10 | 24.7 | 2.6 | 5.8 | 3.01 | 0.11 | 36.2 | 14.9 | 0.6 | 0.7 |
17 | 107.0 | 12.0 | 11.2 | 5.56 | 2.61 | 138.3 | 14.6 | 0.8 | 0.8 |
22 | 121.3 | 15.0 | 13.9 | 4.76 | 1.67 | 156.6 | 3.66 | 1.2 | 0.8 |
29 | 168.0 | 17.8 | 13.0 | 4.21 | 4.83 | 207.8 | 7.31 | 0.3 | 0.7 |
Residues following harvesting of stem wood plus bark | 25.2 | 2.7 | 13.0 | 4.21 | 4.83 | 49.9 | 1.3 | ||
Residues following harvesting of stem wood only | 25.2 | 17.8 | 13.0 | 4.21 | 4.83 | 65.0 | 3.2 |