Table 8 Effect of changes in ethodology on estimated carbon stocks and stock changes by pool in the current study compared with Holdaway et al. (2017)
From: Natural forests in New Zealand – a large terrestrial carbon pool in a national state of equilibrium
Holdaway et al. (2017) | Data corrections, Height estimates | Decay modifiers | Densities | 20 m radius plot | Dead wood adjustment | Below ground dead wood | Litter model | Additional grid locations | Final estimates | |
|---|---|---|---|---|---|---|---|---|---|---|
Stocks (tC·ha− 1) | ||||||||||
AGB | 154.3 | −3.0 | 0.0 | −10.4 | −8.2 | 0.0 | 0.0 | 0.0 | 1.7 | 134.4 |
BGB | 38.6 | −3.1 | 0.0 | −2.4 | −1.9 | 0.0 | 0.0 | 0.0 | 0.4 | 31.5 |
Dead wood | 20.6 | 1.4 | 4.7 | −1.9 | −1.5 | 10.6 | 6.4 | 0.0 | 0.3 | 40.7 |
Litter | 12.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.7 | 0.0 | 20.3 |
Total | 225.4 | −4.6 | 4.7 | −14.7 | −11.6 | 10.6 | 6.4 | 8.7 | 2.4 | 227.2 |
Stock change (tC·ha−1) | ||||||||||
AGB | 2.5 | −2.3 | 0.0 | 0.0 | 0.2 | 0.0 | −0.4 | 0.0 | 0.2 | 0.2 |
BGB | 0.6 | −0.6 | 0.0 | 0.0 | 0.0 | 0.0 | −0.1 | 0.0 | 0.0 | 0.0 |
Dead wood | −0.5 | 1.3 | 0.3 | 0.0 | −0.9 | 0.0 | 0.1 | 0.0 | −0.1 | 0.1 |
Total | 2.5 | −1.7 | 0.3 | 0.0 | −0.7 | 0.0 | −0.4 | 0.0 | 0.2 | 0.3 |