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Table 2 Mean values of nonbiological factors in soils of different depths

From: High-throughput sequencing analysis of the rhizosphere arbuscular mycorrhizal fungi (AMF) community composition associated with Ferula sinkiangensis

depth OM(g/kg) TN(g/kg) TP(g/kg) TK(g/kg) NN (mg/kg) AN (mg/kg) AP (mg/kg) AK (mg/kg) TDS(g/kg) PH SM(%)
sw
 0 -20 cm 23.47 ± 3.75 1.99 ± 0.34 0.76 ± 0.09a 11.82 ± 2.94 3.71 ± 1.05 5.59 ± 0.62 3.05 ± 0.62 239.71 ± 99.13 5.70 ± 3.29 8.07 ± 0.14b 7.44 ± 1.73
 20-40 cm 23.12 ± 1.88 2.00 ± 0.23 0.77 ± 0.09a 11.86 ± 2.95 3.37 ± 0.61 5.58 ± 0.99 4.32 ± 2.06 217.33 ± 66.7 5.45 ± 3.15 7.95 ± 0.15b 8.00 ± 1.24
 40-60 cm 21.92 ± 1.42 2.03 ± 0.07 0.76 ± 0.07a 12.05 ± 2.42 3.72 ± 1.10 5.06 ± 1.24 3.11 ± 1.05 234.01 ± 82.87 5.55 ± 3.20 7.98 ± 0.15b 6.5 ± 1.65
 mean 22.84 ± 2.32B 2.00 ± 0.21B 0.76 ± 0.07A 11.91 ± 2.41B 3.60 ± 0.84B 5.41 ± 0.89AB 3.49 ± 1.34 230.35 ± 73.40 6.13 ± 4.83A 8.00 ± 0.14B 7.31 ± 1.50A
zw
 0 -20 cm 24.13 ± 2.58 2.14 ± 0.21 0.53 ± 0.03b 15.08 ± 1.79 3.62 ± 2.36 4.40 ± 0.61 2.43 ± 0.68 200.11 ± 19.55 5.64 ± 3.26 8.04 ± 0.16b 5.38 ± 2.7
 20-40 cm 23.52 ± 3.73 2.16 ± 0.18 0.54 ± 0.02b 15.60 ± 1.6 3.68 ± 1.74 4.80 ± 0.35 2.17 ± 0.56 253.91 ± 101.89 5.86 ± 3.38 8.03 ± 0.11b 5.54 ± 9.80
 40-60 cm 25.40 ± 1.11 2.30 ± 0.02 0.55 ± 0.01b 16.48 ± 0.45 4.46 ± 1.64 4.22 ± 0.32 2.35 ± 0.50 251.63 ± 28.73 4.43 ± 2.55 8.19 ± 0.10b 5.20 ± 3.80
 mean 24.35 ± 2.48AB 2.20 ± 0.16A 0.53 ± 0.21C 15.72 ± 1.37A 3.92 ± 1.73AB 4.47 ± 0.46B 2.31 ± 0.52 235.22 ± 59.93 5.20 ± 4.67AB 8.09 ± 0.13B 5.37 ± 0.56B
xw
 0 -20 cm 27.24 ± 1.79 2.16 ± 0.13 0.70 ± 0.02a 15.06 ± 1.47 5.56 ± 2.25 5.56 ± 1.24 3.09 ± 1.65 314.8 ± 257.37 0.28 ± 0.16 8.58 ± 0.10a 7.76 ± 1.66
 20-40 cm 26.50 ± 2.04 2.16 ± 0.10 0.70 ± 0.01a 15.04 ± 1.57 5.08 ± 2.17 5.74 ± 0.47 3.57 ± 2.84 359.52 ± 284.25 0.45 ± 0.26 8.62 ± 0.11a 7.21 ± 3.08
 40-60 cm 26.02 ± 2.99 2.18 ± 0.13 0.70 ± 0.05a 15.35 ± 1.6 5.59 ± 3.20 6.33 ± 0.78 3.17 ± 1.38 419.81 ± 342.26 0.45 ± 0.26 8.56 ± 0.23a 6.73 ± 1.81
 mean 26.59 ± 2.09A 2.17 ± 0.10A 0.70 ± 0.03B 15.15 ± 1.35A 5.41 ± 2.25A 5.87 ± 0.84A 3.28 ± 1.80 364.71 ± 261.01 2.08 ± 0.49B 8.59 ± 0.14A 7.23 ± 2.02A
  1. Lowercase letters are significantly difference among three soil depth, capital letters are significantly difference among three plant species (P < 0.05). SW, ZW, and XW respectively correspond to the top, middle, and bottom slope positions