Tabla 3. Análisis de componentes principales (matriz de pesos).

Variable	F1	F2	F3	F4
pH				0.75
CaCO3 (%)	0.962
Fed (%)		0.752
CIC (cmolc kg-1)		0.855
Arcilla (%)		0.933
M.O (%)			0.877
Cu (mg kg-1)	0.986
Zn (mg kg-1)	0.981
As (mg kg-1)	0.753
Pb (mg kg-1)	0.776
Cd (mg kg-1)	0.974
Tl (mg kg-1)		0.794
Fe (mg kg-1)	0.963
SO42-(mg kg-1)	0.906
Varianza acumulada(%)	57	81	90	97