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Table 4 Kinetic parameters for soil carbon mineralization of four forest types in the Changbai Mountain region of Northeast China

From: The effects of forest type on soil microbial activity in Changbai Mountain, Northeast China

Forest typesa

C 0

(mg CO2–C kg−1)

k

(day−1)

t 0.5

(day)

R 2

C 0 /soil organic C

(%)

Old-growth forest

9296 ± 926a

0.014 ± 0.004ab

53.8 ± 18.2ab

0.999 ± 0.001a

2.87 ± 0.58b

Birch forest

6896 ± 747b

0.018 ± 0.004a

39.4 ± 6.8b

0.999 ± 0.001a

2.88 ± 0.44b

Mixed broadleaf/larch forest

9532 ± 915a

0.011 ± 0.004b

69.0 ± 23.0ab

0.999 ± 0.001a

4.48 ± 0.66a

Spruce plantation

9380 ± 1188a

0.009 ± 0.004b

80.2 ± 25.4a

0.996 ± 0.003a

4.56 ± 0.80a

  1. Data are means ± standard deviation (n = 4). Different letters indicate the significant differences in the four forest types at p < 0.05. Calculated with the formula C m  = C 0 (1-e-kt)
  2. C 0 potentially mineralizable carbon, C m cumulative value of mineralized carbon during 57 days, k rate constant of carbon mineralization, t 0.5 days required for attaining half potential percentage of carbon mineralized
  3. aOld-growth forest is a primary mixed forest with broadleaf and Korean pine; birch forest is regenerated by natural succession; mixed broadleaf/larch forest is a mixed forest with natural broadleaf regeneration and larch plantation
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Annals of Forest Science

ISSN: 1297-966X