Sampling condition |
|
NH4+-N |
NO3-N |
NO2-N |
AN |
AK |
AP |
|
|
(mg·kg–1) |
(mg·kg–1) |
(g·kg–1) |
(mg·kg–1) |
(mg·kg–1) |
(mg·kg–1) |
Depth (cm) |
0-20 |
7.18 ± 1.38Aa
|
4.27 ±
1.35Aa
|
1.26 ± 0.12Aa
|
99.25 ±
9.58Aa
|
5.04 ± 0.89Aa
|
1.80 ±
0.27Aa
|
|
20-40 |
4.76 ± 1.1ABab
|
2.62 ±
0.96Aa
|
1.13 ± 0.07Aab
|
81.20 ±
5.31ABab
|
4.62 ± 0.98Aa
|
0.60 ±
0.15Bb
|
|
40-60 |
3.124 ± 0.32Bb |
3.08 ± 0.49Aa
|
0.95 ±
0.07Ab
|
74.39 ± 4.41Bb
|
4.11 ±
0.44Aa
|
0.45 ±
0.12Bb
|
Slope position |
Top |
6.51 ± 1.20Aa
|
3.07 ±
0.54Aa
|
1.20 ± 0.11Aa
|
89.88 ±
7.26Aa
|
4.69 ± 0.66Aa
|
0.69 ±
0.13Aa
|
|
Midslope |
3.99 ± 0.83Aa
|
4.79 ±
1.39Aa
|
1.19 ± 0.11Aa
|
84.99 ±
4.58Aa
|
4.87 ± 0.93Aa
|
1.05 ±
0.32Aa
|
|
Base |
4.08 ± 0.82Aa
|
2.96 ±
0.36Aa
|
0.99 ± 0.09Aa
|
77.24 ±
7.72Aa
|
3.95 ± 0.60Aa
|
1.23 ±
0.30Aa
|
Forest type |
NA |
6.46 ± 1.75Aab
|
2.76 ±
0.39Bb
|
1.27 ± 0.13Aa
|
90.33 ±
10.50Aa
|
7.53 ± 0.93Aa
|
0.25 ±
0.11Bb
|
|
GNA |
2.23 ± 0.33Bc
|
1.82 ±
0.32Bb
|
1.25 ± 0.19Aa
|
84.46 ±
5.26Aab
|
2.72 ± 0.35Bb
|
0.84 ±
0.27ABab
|
|
LF |
3.76 ± 0.82ABbc
|
7.39 ±
1.52Aa
|
0.95 ± 0.08Aa
|
65.59 ±
3.88Ab
|
3.51 ± 0.23Bb
|
1.25 ±
0.13ABa
|
|
GLF |
6.98 ± 0.74Aa
|
2.41 ±
0.27Bb
|
1.18 ± 0.12Aa
|
92.45 ±
7.17Aa
|
4.06 ± 0.38Bb
|
1.56 ±
0.45Aa
|