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. 2015 Apr 15;10(4):e0122981. doi: 10.1371/journal.pone.0122981

Table 2. Main ecological factors of eight locations throughout China.

Itemss S1 S2 S3 S4 S5 S6 S7 S8
XRAN 6.31±0.03 abcd 28.12±0.02 cde 32.65±0.04 abc 8.09±0.07 ab 7.43±0.04 abc 8.13±0.03 abcd 32.21±0.02 cde 35.82±0.03 abc
XRAP 6.42±0.06 ab 7.58±0.05 a 8.56±0.02 b 11.37±0.15 de 8.25±0.24 ab 7.24±0.06 ab 8.85±0.05 a 10.13±0.02 b
XRAPM 107.69±0.02 cde 357.53±0.04 e 96.71±2.14 de 132.04±4.30 e 160.41±0.01 de 135.96±0.02 cde 384.35±0.03 e 112.71±0.04 de
XTN 0.23±0.02 e 0.25±0.001 bc 0.20±0.004 e 0.29±0.005 de 0.32±0.004 e 0.17±0.001 e 0.33±0.001 bc 0.16±0.005 e
XTP 0.03±0.001 ab 0.11±0.002 cde 0.14±0.003 e 0.21±0.005 bc 0.05±0.001 de 0.02±0.001 ab 0.15±0.002 cde 0.32±0.003 e
XTPM 2.45±0.01 e 1.49±0.02 de 1.62±0.04 de 1.77±0.03 abc 2.46±0.05 e 2.60±0.01 e 1.56±0.02 de 2.35±0.04 de
XOM 5.00±0.01 bcde 6.52±0.01 bcd 5.40±0.01 b 10.02±0.06 de 6.38±0.03 cde 4.09±0.01 bcde 7.22±0.03 bcd 6.50±0.01 b
XpH 6.20±0.05 abc 7.31±003 bcd 6.59±0.05 cde 6.39±0.07 cde 6.12±0.06 abcd 6.40±0.05 abc 7.09±003 bcd 6.20±0.05 cde
XJAT -7.0±0.01 bcd -4.0±0.04 abcd -8.2±0.02 de -7.6±0.05 bcd -2.2±0.04 bcd -5.6±0.01 bcd 1.5±0.03 abcd -5.0±0.02 de
XJMT 19.0±0.01 abc 22.5±0.07 ab 23.4±0.03 bcd 21.7±0.04 d 15.5±0.01 ab 13.4±0.02 abc 16.3±0.03 ab 16.8±0.05 bc
XAAT 1847.43±0.03 bc 2390.80±0.05 ab 3643.87±0.06 c 4108.22±0.04bcd 1265.20±0.04bcde 1526.70±0.03 bc 2263.20±0.05 ab 1931.52±0.03 bcd
XAHT 40.44±0.08 cd 32.80±0.04 bc 39.50±0.01 abc 35.00±0.03 ab 31.70±0.01 cd 24.60±0.04 cd 30.60±0.05 bc 33.90±0.02 abc
XALT -24.00±0.04 de -25.50±0.06 d -26.62±0.03 bcd -24.24±0.01 bc -28.91±0.04 abc -23.40±0.04 de -14.4±0.02 d -20.30±0.03bcd
XAMT 6.90±0.05 ab 7.60±0.08 d 4.32±0.04 e 6.40±0.02 e 7.00±0.05 cde 5.50±0.05 ab 9.00±0.08 d 6.80±0.04 e
XAAP 616.32±0.01 abc 635.44±0.04 bc 620.30±0.04abc 310.27±0.06 cde 880.30±0.04 ab 627.20±0.01 abc 650.45±0.04 bc 642.41±0.06abc
XASD 2370.12±0.04 ab 2021.35±0.07bcde 1226.55±0.03bc 2659.62±0.06abc 1738.34±0.03 a 2206.40±0.04 ab 2020.53±0.07bcde 2246.20±0.01bc
XFFP 132.61±15.38abc 158.00±9.66 a 230.54±11.55ab 121.52±8.12 abc 180.00±1.23 a 167.00±15.38abc 180.00±9.66 a 147.35±11.55ab
XRH 63±0.02 ab 70±0.04 a 74±0.05 c 55±0.02 bc 68±0.01 ac 45±0.02 a 55±0.03 ab 65±0.04 b

Note: For soil factors and climate factors, values were given as mean ± SD. For each location, values followed by the same small letter did not share significant differences according to Duncan’s test (P < 0.05). XRAN(mg/kg)-Rapidly available nitrogen, XRAP(mg/kg)-Rapidly available phosphorus, XRAPM(mg/kg)-Rapidly available potassium, XTN(%)-Total nitrogen, XTP(%)-Total phosphorus,XTPM(%)-Total potassium, XOM(%)-Organic matter, XpH-pH, XJAT(°C)-January average temperature, XJMT(°C)-July mean temperature, XAAT(°C)-Anaual accumulated temperature(≥10°C), XAHT(°C)-Annual highest temperature, XALT(°C)-Annual lowest temperature, XAMT(°C)-Anaual mean temperature, XAAP(mm)-Anaual average precipitation, XASD(h)-Anaual sunshine duration, XFFP(d)-Frost free period, XRH(%)-Relative humidity.