Impact of Elevation Change on the Physicochemical Properties of Forest Soil in South Omo Zone, Southern Ethiopia

Table 4

Cation exchange capacity (CEC) and exchangeable cations across the three elevation classes.

Soil parameters	Elevation			Correlation coefficient (r)	Sig. (2 tailed)
	Lower	Middle	Higher
CEC	17.96 ± 1.60	16.67 ± 1.14	23.55 ± 2.06	0.337	0.002	0.471
Ca^2+	10.86 ± 1.45	7.67 ± 0.81	9.76 ± 0.88	−0.044	0.693	0.387
Mg^2+	6.55 ± 0.67	5.92 ± 0.71	8.52 ± 0.77	0.271	0.014	0.755
K^+	0.49 ± 0.09	0.42 ± 0.097	0.47 ± 0.06	−0.053	0.635	0.607

Significant at 0.01 level (2-tailed); significant at 0.05 level (2-tailed).