highly significantP <0.001
A highly significant negative correlation was only observed between the H + concentration relative to the soil pH values and EC in the uncontaminated soil (r=−0.729, P <0.001, n=27).
A highly significant negative correlation was only observed between the H + concentration relative to the soil pH values and EC in the uncontaminated soil (r=−0.729, P <0.001, n=27).