Table 2 Soil properties of three areas of drainage States. SOC, TN, DOC, SWC and C/N represent for soil organic carbon content, total nitrogen, dissolved organic carbon, soil water content, and carbon-nitrogen ratio respectively. Data are presented mean value ± standard error, n = 3.
From: Impact of drainage on peatland soil environments and greenhouse gas emissions in Northeast China
Environment factors | Soil depth (cm) | Natural area | Transition area | Drained area | |||
|---|---|---|---|---|---|---|---|
S1 | S2 | S3 | S4 | S5 | S6 | ||
SOC (g/kg) | 0 ~ 20 | 437.05 (± 1.35) A/a | 441.80 (± 18.67) A/a | 416.40 (± 10.72) A/a | 463.05 (± 30.58) A/a | 340.03 (± 50.97) A/b | 197.31 (± 4.82) A/c |
20 ~ 40 | 512.71 (± 3.77) B/a | 474.10 (± 5.24) A/b | 453.95 (± 5.06) B/b | 459.81 (± 14.05) A/b | 374.75 (± 14.75) A/c | 296.13 (± 4.49) B/d | |
40 ~ 60 | 524.05 (± 3.65) C/ab | 545.66 (± 35.41) B/ab | 561.35 (± 2.91) C/a | 528.04 (± 10.34) B/ab | 515.17 (± 4.51) B/b | 526.64 (± 10.91) C/ab | |
TN (g/kg) | 0 ~ 20 | 14.48 (± 0.87) A/abc | 14.32 (± 1.04) A/abc | 13.62 (± 1.10) A/bc | 12.44 (± 0.76) A/c | 16.06 (± 1.26) A/ab | 16.65 (± 1.13) A/a |
20 ~ 40 | 15.74 (± 0.78) A/a | 15.12 (± 0.97) A/a | 14.37 (± 0.83) A/a | 15.23 (± 1.54) B/a | 13.17 (± 0.61) B/a | 14.17 (± 0.66) A/a | |
40 ~ 60 | 16.75 (± 1.76) A/a | 15.49 (± 0.90) A/a | 15.67 (± 1.30) A/a | 15.76 (± 1.02) B/a | 15.27 (± 1.43) AB/a | 16.13 (± 1.88) A/a | |
DOC (g/kg) | 0 ~ 20 | 0.55 (± 0.10) A/b | 0.61 (± 0.03) A/ab | 0.62 (± 0.08) AB/ab | 0.83 (± 0.08) A/a | 0.44 (± 0.12) A/b | 0.47 (± 0.04) A/b |
20 ~ 40 | 0.60 (± 0.06) A/b | 0.63 (± 0.19) A/ab | 0.71 (± 0.08) A/ab | 0.92 (± 0.06) A/a | 0.80 (± 0.12) B/ab | 0.91 (± 0.14) B/ab | |
40 ~ 60 | 0.49 (± 0.06) A/ab | 0.45 (± 0.10) A/b | 0.51 (± 0.04) B/ab | 0.58 (± 0.13) B/ab | 0.71 (± 0.13) B/ab | 0.73 (± 0.08) B/a | |
pH | 0 ~ 20 | 4.71 (± 0.08) A/c | 4.68 (± 0.06) A/c | 4.73 (± 0.07) A/bc | 4.89 (± 0.05) A/b | 5.21 (± 0.06) A/a | 5.29 (± 0.05) A/a |
20 ~ 40 | 4.71 (± 0.04) A/a | 4.64 (± 0.08) AB/a | 4.59 (± 0.02) B/a | 4.74 (± 0.13) AB/a | 5.09 (± 0.07) AB/b | 5.05 (± 0.09) B/b | |
40 ~ 60 | 4.62 (± 0.06) A/b | 4.53 (± 0.02) B/b | 4.57 (± 0.06) B/b | 4.61 (± 0.08) B/b | 4.89 (± 0.18) B/a | 4.66 (± 0.08) C/ab | |
SWC (%) | 0 ~ 20 | 540.59 (± 26.30) A/a | 531.18 (± 15.42) A/a | 539.04 (± 5.57) A/a | 417.20 (± 17.53) A/b | 343.27 (± 11.66) A/c | 212.73 (± 11.04) A/d |
20 ~ 40 | 603.23 (± 1.81) B/a | 542.72 (± 18.92) A/bc | 546.25 (± 4.74) A/b | 500.98 (± 11.99) B/c | 438.94 (± 20.52) B/d | 305.89 (± 21.39) B/e | |
40 ~ 60 | 588.34 (± 3.87) B/a | 545.99 (± 21.20) A/b | 545.48 (± 8.81) A/b | 550.01 (± 12.98) C/b | 540.54 (± 8.83) C/b | 492.03 (± 12.16) C/c | |
C/N | 0 ~ 20 | 30.26 (± 1.73) A/a | 30.96 (± 2.56) A/a | 30.74 (± 3.16) A/a | 37.26 (± 2.00) A/a | 21.40 (± 4.83) A/b | 11.88 (± 0.79) A/c |
20 ~ 40 | 32.63 (± 1.80) A/a | 31.45 (± 2.29) AB/a | 31.66 (± 1.60) A/a | 30.37 (± 2.85) B/a | 28.48 (± 1.46) AB/a | 20.94 (± 1.09) B/b | |
40 ~ 60 | 31.50 (± 3.08) A/a | 35.23 (± 0.79) B/a | 36.01 (± 3.16) A/a | 33.61 (± 2.44) AB/a | 33.92 (± 2.94) B/a | 32.95 (± 3.93) C/a | |
