Age of Soil and Water Conservation Practices on Selected Soil Properties along the Toposequence of Gerado Watershed, Habru District, Eastern Amhara, Ethiopia

Table 3

Effects of SWC age, slope position, and soil depth on exchangeable bases and CEC.

Age of SWC	Slope position	Depth (cm)	Exchangeable bases (meq/100 gr)				CEC (meq/100 gr)
			K^+	Ca^2+	Mg^2+	Na^+
9-years-aged SWC	Upper	40	0.04	4.09	2.67	0.43	44.4^b
		20	0.77	7.40	3.22	0.91	48.2^b
	Middle	40	0.91	7.59	3.65	1.02	47.4^b
		20	0.26	6.38	2.75	0.33	51.4^ab
	Lower	40	0.54	6.92	3.28	0.80	53.1^ab
		20	0.79	6.04	3.15	1.01	57.4^a
3-years-aged SWC	Upper	40	0.90	8.33	3.76	1.26	27.0^d
		20	0.87	5.17	3.25	0.99	28.2^c
	Middle	40	0.75	7.26	3.14	0.94	26.3^d
		20	0.78	7.20	2.75	1.09	27.1^d
	Lower	40	1.09	9.05	3.28	1.19	27.3^d
		20	0.36	8.16	3.36	0.75	28.3^d
Nonconserved	Upper	40	0.23	6.18	2.72	0.43	20.1^e
		20	0.32	4.89	2.44	0.64	21.5^e
	Middle	40	0.59	6.69	3.55	0.69	20.3^e
		20	0.22	7.92	3.50	0.70	21.5^e
	Lower	40	0.39	3.93	2.81	0.65	21.2^e
		20	0.24	6.73	3.24	0.36	21.5^e
LSD			0.75	3.57	1.12	0.71	1.2371

Means within a column followed by the same letter are not significantly different at P < 0.05.