Table 2: Total element content, available content of heavy metals, and fertility evaluation of the original soil samples studied.

Soil fertility attributesa
SoilOMpHPKCaMgH+AlCECfSBg
g kg−1mg kg−1mmolc kg−1%

SCd
SA4e

SBCuFeMnZnCdCrNiPb
mg kg−1

SCd <0.1c
SA4e

Total contentb
CdPbCuCrNiZnBaBMnFe
mg kg−1g kg−1

SCd
SA4e

Kabata-Pendias and Pendias 2001 [25].
bUSEPA 2007 [19].
cLower than detection limit.
dSC: uncontaminated soil.
eSA4: contaminated soil (subarea 4).
fCEC: cation exchange capacity.
gSB: base saturation.