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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