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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
  1. aDoes not include litter carbon as no litter data was collected from this forest alliance;
  2. bToo few observations to calculate 95% confidence intervals;
  3. cTwo grid locations were not classified into a forest alliance