Table 5 Estimates of total carbon stocks for each cycle by tall forests and regenerating forests (shrublands) and their assigned alliances as defined by Wiser (2016). Plus-or-minus values are estimated 95% confidence intervals calculated using two methods; the first method is based solely on sampling variation between plots (CIs); and the second method combines the effects of sampling variation and prediction uncertainty (CIs&p)
From: Natural forests in New Zealand – a large terrestrial carbon pool in a national state of equilibrium
Tall forests and their alliances | N | Stocks in 2002–2007 | Stocks in 2009–2014 | ||||
|---|---|---|---|---|---|---|---|
tC·ha−1 | CIs | CIs&p | tC·ha−1 | CIs | CIs&p | ||
Beech-Broadleaved Forest | |||||||
Kāmahi-hardwood forest | 75 | 291.6 | ± 25.6 | ± 29.5 | 298.0 | ± 26.6 | ± 30.4 |
Silver beech-broadleaf forest | 70 | 261.7 | ± 22.9 | ± 26.4 | 262.7 | ± 23.8 | ± 27.2 |
Silver beech-red beech-kāmahi forest | 72 | 360.5 | ± 29.5 | ± 34.6 | 350.1 | ± 26.4 | ± 31.7 |
Subtotal | 217 | 304.1 | ± 16.2 | ± 22.2 | 303.3 | ± 15.5 | ± 21.7 |
Beech-Broadleaved-Podocarp Forest | |||||||
Kāmahi-Southern rata forest and tall shrubland | 38 | 205.9 | ± 37.1 | ± 38.5 | 199.3 | ± 35.7 | ± 37.1 |
Pepperwood-hardwood forest and successional shrubland | 50 | 286.7 | ± 35.4 | ± 38.2 | 295.0 | ± 38.5 | ± 41.2 |
Kāmahi forest | 59 | 306.0 | ± 29.8 | ± 33.5 | 296.0 | ± 30.0 | ± 33.4 |
Kāmahi-silver fern forest | 42 | 214.2 | ± 30.4 | ± 32.2 | 198.2 | ± 32.3 | ± 33.8 |
Subtotal | 189 | 260.3 | ± 17.2 | ± 21.6 | 255.6 | ± 18.1 | ± 22.2 |
Beech Forest | |||||||
Black/mountain beech forest (subalpine) | 28 | 191.1 | ± 20.8 | ± 22.9 | 203.3 | ± 23.5 | ± 25.6 |
Black/mountain beech-silver beech forest/subalpine shrubland | 54 | 244.9 | ± 40.8 | ± 42.6 | 251.6 | ± 41.6 | ± 43.5 |
Black/mountain beech forest | 34 | 178.3 | ± 29.7 | ± 31.0 | 185.4 | ± 34.3 | ± 35.5 |
Silver beech-red beech-black/mountain beech forest | 28 | 323.2 | ± 36.7 | ± 40.1 | 321.9 | ± 39.5 | ± 42.7 |
Silver beech forest with mountain lacebark and weeping matipo | 11 | 201.5 | ± 103 | ± 103 | 225.7 | ± 152 | ± 153 |
Hard beech-kāmahi forest | 21 | 330.6 | ± 69.4 | ± 71.4 | 324.1 | ± 78.1 | ± 79.7 |
Subtotal | 176 | 243.2 | ± 20.3 | ± 23.6 | 250.1 | ± 20.9 | ± 24.4 |
Broadleaved-Podocarp Forest (including kauri) | |||||||
Kāmahi-podocarp forest | 86 | 316.4 | ± 43.8 | ± 46.6 | 301.7 | ± 41.5 | ± 44.2 |
Mahoe forest | 61 | 169.4 | ± 34.8 | ± 35.9 | 166.4 | ± 29.8 | ± 31.0 |
Tawa forest | 82 | 248.6 | ± 32.2 | ± 34.5 | 250.6 | ± 32.6 | ± 34.9 |
Silver fern-mahoe forest | 64 | 147.8 | ± 19.5 | ± 20.8 | 146.1 | ± 21.3 | ± 22.5 |
Pepperwood-fuchsia-broadleaf forest | 21 | 149.1 | ± 44.0 | ± 44.6 | 144.0 | ± 39.6 | ± 40.2 |
Mataī forest | 7 | 178.1 | ± 153 | ± 153 | 202.8 | ± 209 | ± 209 |
Towai-tawa forest | 9 | 240.6 | ± 121 | ± 122 | 260.6 | ± 136 | ± 137 |
Subtotal | 330 | 217.6 | ± 16.1 | ± 19.4 | 216.2 | ± 15.8 | ± 19.1 |
Regenerating forest and shrublands and their alliances | |||||||
Shrublands | |||||||
Kānuka shrubland with Coprosma and prickly mingimingi | 24 | 75.5 | ± 18.3 | ± 18.7 | 85.5 | ± 22.6 | ± 23.0 |
Grey scrub with kanuka | 29 | 31.3 | ± 12.4 | ± 12.5 | 34.0 | ± 14.1 | ± 14.2 |
Mānuka shrubland | 4 | 22.4 | ± 58.4 | ± 58.4 | 23.6 | ± 58.1 | ± 58.1 |
Matagouri shrublanda,b | 1 | 7.6 | 8.6 | ||||
Turpentine scrub-Gaultheria montane shrubland | 9 | 6.5 | ± 11.7 | ± 11.7 | 6.3 | ± 13.0 | ± 13.0 |
Gorse shrubland with cabbage treesa,b | 5 | 18.3 | 9.1 | ||||
Subtotal | 72 | 42.8 | ± 10.1 | ± 10.4 | 45.5 | ± 11.7 | ± 11.9 |
Other | |||||||
Kānuka forest and tall shrubland | 57 | 60.5 | ± 10.0 | ± 10.4 | 67.7 | ± 11.7 | ± 12.2 |
Mountain neinei-Inanga low forest and subalpine shrublanda,b | 3 | 240.0 | 244.9 | ||||
Total3 | 1044 | 227.4 | ± 8.9 | ± 14.5 | 227.3 | ± 9.0 | ± 14.5 |