Table 4 C stored in the woody debris classified by the various diameter class in Acacia and Eucalyptus plantations of different stand age (t·ha−1).

From: Improving understanding of carbon stock characteristics of Eucalyptus and Acacia trees in southern China through litter layer and woody debris

Type

Period

2.5~10 cm

10~20 cm

20~30 cm

>30 cm

Snags

Logs

Total

Snags

Logs

Total

Snags

Logs

Total

Snags

Logs

Total

Eucalyptus

Young

0a

0Aa

0Aa

0a

0Aa

0A

0a

0Aa

0Aa

0a

0a

0a

Middle-aged

0.117 ± 0.11b

0.050 ± 0.11Bb

0.167 ± 0.15ABb

0.199 ± 0.11b

0.116 ± 0.09Ab

0.314 ± 0.12Ba

0.085 ± 0.09a

0.014 ± 0.01Aa

0.098 ± 0.09ABa

0.00 ± 0.00a

0.00 ± 0.00a

0.00 ± 0.00a

Mature

0.051 ± 0.01ab

0.158 ± 0.05Bc

0.210 ± 0.03Bb

0.202 ± 0.13b

0.405 ± 0.07Bc

0.606 ± 0.13Bb

0.157 ± 0.17a

0.124 ± 0.08Bb

0.280 ± 0.12Bb

0.047 ± 0.05b

0.064 ± 0.06b

0.111 ± 0.10b

Acacia

Young

0.044 ± 0.04a

0.213 ± 0.12a

0.256 ± 0.15a

0.056 ± 0.03a

0.117 ± 0.04a

0.174 ± 0.07Aa

0a

0a

0Aa

0a

0a

0a

Middle-aged

0.210 ± 0.15a

1.232 ± 1.44a

1.442 ± 1.35a

1.183 ± 0.87ab

0.334 ± 0.15a

1.518 ± 0.73ab

0.813 ± 0.99ab

0.220 ± 0.39a

1.033 ± 0.96ab

0.556 ± 0.69a

0.012 ± 0.02a

0.568 ± 0.69a

Mature

0.125 ± 0.06a

0.941 ± 0.43a

1.067 ± 0.45a

1.994 ± 1.04b

1.069 ± 1.46a

3.063 ± 1.52Bb

1.420 ± 0.58b

0.500 ± 0.06a

1.920 ± 0.62Bb

0.407 ± 0.31a

0.223 ± 0.39a

0.630 ± 0.40a

Forest types

ns

*

**

**

ns

**

*

*

**

*

ns

*

  1. Note: Values are shown as mean ± SD; different lower case (P < 0.05) and upper case (P < 0.01) letters within a column indicate a significant difference between the various ages of a given forest type; ns: not significant, *significant difference (P < 0.05), **extremely significant difference (P < 0.01) between the Eucalyptus and Acacia plantations.