Table 1.
Parameter | Wenchuan | Feihong | Shidaguan | |||
---|---|---|---|---|---|---|
North (6) | South (7) | North (5) | South (7) | North (7) | South (10) | |
Elevation (m) | 1428.33 (37.10)a | 1437.86 (53.37)a | 1931.00 (36.22)a | 1798.57 (88.77)b | 2047.14 (82.00)a | 2013.20 (51.63)a |
Degree (°) | 32.83 (5.04)a | 40.00 (3.96)b | 38.00 (3.46)a | 36.57 (1.40)a | 40.00 (0.58)a | 32.45 (4.65)b |
Soil moisture—SM (%) | 6.77 (2.20)a | 6.10 (0.88)a | 9.00 (0.78)a | 5.93 (1.85)b | 14.20 (1.85)a | 12.53 (2.69)a |
pH | 7.93 (0.12)a | 7.93 (0.16)a | 7.20 (0.35)a | 7.39 (0.49)a | 7.51 (0.27)a | 7.44 (0.43)a |
Organic matter content—ORG (%) | 9.14 (3.66)a | 4.88 (1.33)b | 23.78 (9.61)a | 5.85 (1.48)b | 13.28 (2.29)a | 7.27 (2.61)b |
Available nitrogen—NA (mg kg−1) | 260.87 (82.84)a | 124.15 (28.20)b | 526.45 (184.45)a | 191.27 (48.92)b | 329.79 (58.35)a | 214.51 (70.88)b |
Available phosphorus—PA (mg kg−1) | 1.98 (2.05)a | 0.81 (0.47)a | 5.26 (2.75)a | 6.95 (2.23)a | 4.00 (1.12)a | 3.55 (3.08)a |
Available potassium—KA (mg kg−1) | 188.38 (32.08)a | 95.09 (14.72)b | 161.02 (44.62)a | 114.24 (18.68)b | 182.90 (34.03)a | 111.07 (23.76)b |
Mean and standard deviation (SD) followed with different letters indicate significant differences at p < 0.05 between north and south aspects. Number of sampling plots within each slope is presented in brackets.