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Table 9 The proportions of labile organic carbon fractions (ROC, POC, MBC, WOC, and MOC) accounting for organic carbon in the Chinese fir plantations with different stand ages (0, 9, 17, and 26 years old)

From: Distribution of organic carbon fractions in soil aggregates in Chinese fir plantations with different stand ages

Stand age (years)

ROC/OC (%)

POC/OC (%)

MBC/OC (%)

WOC/OC (%)

MOC/OC (%)

0

26.96

31.04

1.34

0.83

0.82

9 

21.13

22.09

0.94

0.66

0.65

17

14.38

21.50

0.85

0.42

0.47

26

23.18

18.53

1.14

0.63

0.87

  1. OC, organic carbon; ROC, readily oxidizable carbon; POC, particulate organic carbon; MBC, microbial biomass carbon; WOC, water-soluble organic carbon; MOC, mineralized organic carbon