季节 | 坡位 | 土深(cm) | C0 (mg/kg) | k (d−1) | R2 | C0/SOC (‰) |
春季 | 上 | 0~10 | 3071.19 ± 350.28Aa | 0.026 ± 0.004 | 0.990 | 22.75 ± 2.59Aa |
上 | 10~20 | 3428.91 ± 742.63ABa | 0.016 ± 0.004 | 0.990 | 25.33 ± 5.50Ba | |
中 | 0~10 | 3187.15 ± 336.33Aa | 0.025 ± 0.004 | 0.992 | 20.75 ± 2.19Aa | |
中 | 10~20 | 2682.82 ± 293.89Ca | 0.029 ± 0.005 | 0.989 | 17.47 ± 1.91Ca | |
下 | 0~10 | 4196.56 ± 922.01Aa | 0.014 ± 0.004 | 0.993 | 39.01 ± 8.57Aa | |
下 | 10~20 | 3085.32 ± 354.22Aa | 0.020 ± 0.003 | 0.995 | 28.68 ± 3.29Aa | |
夏季 | 上 | 0~10 | 18313.71 ± 58839.163Aa | 0.001 ± 0.004 | 0.990 | 168.22 ± 540.45Aa |
上 | 10~20 | 3143.32 ± 1678.56ABa | 0.008 ± 0.005 | 0.988 | 28.87 ± 15.43Ba | |
中 | 0~10 | 3777.94 ± 3172.66Aa | 0.007 ± 0.007 | 0.976 | 32.66 ± 27.46Aa | |
中 | 10~20 | 848.04 ± 194.95Da | 0.020 ± 0.006 | 0.981 | 7.35 ± 1.69Da | |
下 | 0~10 | 434.86 ± 120.46(E) | 3.001 ± 7.337 | −0.25 | 3.10 ± 0.85Ba | |
下 | 10~20 | 2376.36 ± 1413.23A | 0.008 ± 0.005 | 0.987 | 16.91 ± 10.06Aa | |
秋季 | 上 | 0~10 | 8468.51 ± 2481.00Aa | 0.005 ± 0.002 | 0.999 | 171.47 ± 50.23Aa |
上 | 10~20 | 2902.37 ± 1023.42Bb | 0.010 ± 0.004 | 0.992 | 58.76 ± 20.71Ab | |
中 | 0~10 | 3054.51 ± 321.97Ab | 0.014 ± 0.002 | 0.998 | 32.39 ± 3.41Ab | |
中 | 10~20 | 4784.14 ± 698.60Aa | 0.011 ± 0.002 | 0.998 | 50.73 ± 7.41Aa | |
下 | 0~10 | 4587.53 ± 691.29Aa | 0.012 ± 0.002 | 0.997 | 45.18 ± 6.81Aa | |
下 | 10~20 | 2835.48 ± 794.46Ab | 0.011 ± 0.004 | 0.994 | 27.92 ± 7.82Ab | |
冬季 | 上 | 0~10 | 4276.71 ± 466.30Aa | 0.029 ± 0.005 | 0.989 | 35.08 ± 3.82Aa |
上 | 10~20 | 5344.32 ± 551.96Aa | 0.030 ± 0.005 | 0.990 | 43.83 ± 4.53ABa | |
中 | 0~10 | 3766.06 ± 530.12Aa | 0.031 ± 0.007 | 0.978 | 28.00 ± 3.94Aa | |
中 | 10~20 | 3892.96 ± 400.39Ba | 0.029 ± 0.005 | 0.991 | 28.94 ± 2.97Ba | |
下 | 0~10 | 4362.50 ± 463.40Aa | 0.035 ± 0.006 | 0.985 | 35.17 ± 3.72Aa | |
下 | 10~20 | 2935.00 ± 464.90Ab | 0.035 ± 0.010 | 0.967 | 23.66 ± 3.75Ab |