Main ecological factors of eight locations throughout China.

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 RAN(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.Main ecological factors of eight locations throughout China.