Skip to main content

Table 4 Estimates of carbon stock changes between 2002 and 2007 and 2009–2012 for all forests, and for tall forest and regenerating forest separately within the pre-1990 natural forest. 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

Forest groupa

Pool

Change in stocks

tC·ha−1

CIs

CIs&p

All natural forests

(N = 1046)

AGB

0.2

± 1.1

± 1.1

BGB

0.0

± 0.3

± 0.3

Dead wood

0.0

± 1.3

± 1.3

All pools

0.2

± 1.4

± 1.4

Tall forest

(N = 912)

AGB

−0.3

± 1.2

± 1.2

BGB

−0.1

± 0.3

± 0.3

Dead wood

0.0

± 1.5

± 1.5

All pools

−0.4

± 1.6

± 1.6

Regenerating forest

(N = 132)

AGB

3.7

± 1.6

± 1.6

BGB

0.9

± 0.4

± 0.4

Dead wood

0.3

± 0.7

± 0.7

All pools

4.9

± 1.9

± 1.9

  1. aNote that two grid locations were not classified into a forest group