CEC	Correlation	pH	Organic matter	Iron oxides	Sand	Silt	Clay
CEC₁	Pearson Correlation	0.116	0.117	0.574**	−0.446*	0.465*	0.193
	Sig. (2-tailed)	0.588	0.586	0.003	0.029	0.022	0.366
CEC₂	Pearson Correlation	0.030	0.071	0.679**	−0.518**	0.399	0.379
	Sig. (2-tailed)	0.888	0.743	0.000	0.010	0.054	0.068
CEC₃	Pearson Correlation	0.059	−0.009	0.662**	−0.508*	0.362	0.403
	Sig. (2-tailed)	0.784	0.965	0.000	0.011	0.082	0.051
ΔCEC_2-1	Pearson Correlation	−0.243	−0.022	0.241	−0.072	−0.177	0.306
	Sig. (2-tailed)	0.253	0.920	0.256	0.737	0.409	0.147
ΔCEC_3-2	Pearson Correlation	0.196	−0.548**	−0.136	0.057	−0.201	0.129
	Sig. (2-tailed)	0.359	0.006	0.526	0.790	0.346	0.548