Forest
|
Depth (cm)
|
SOC (g·kg− 1)
|
δ13C (‰)
|
---|
PF
|
0–10
|
18.56 ± 0.84Ba
|
−25.10 ± 0.20Ac
|
10–20
|
7.63 ± 0.54Bb
|
−22.46 ± 0.35Ab
|
20–30
|
5.37 ± 0.39Cc
|
− 21.38 ± 0.28Aa
|
MF
|
0–10
|
29.36 ± 2.53Aa
|
− 25.77 ± 0.27Ab
|
10–20
|
14.62 ± 0.82Ab
|
−22.94 ± 0.24Aa
|
20–30
|
8.82 ± 0.13Bc
|
− 22.00 ± 0.59Aa
|
BF
|
0–10
|
28.43 ± 0.94Aa
|
−27.31 ± 0.17Bb
|
10–20
|
15.89 ± 0.56Ab
|
−25.93 ± 0.34Ba
|
20–30
|
10.56 ± 0.52Ac
|
− 25.04 ± 0.35Ba
|
- Values are the mean ± standard error (n = 8). PF P. massoniana forest; MF coniferous and broadleaved mixed forest; BF monsoon evergreen broadleaved forest. Different lowercase letters indicate significant differences among three depths in the same forest (p < 0.05). Different capital letters indicate significant differences among three forest types of the same depth (p < 0.05)