Effects of landscape positions on soil physicochemical properties at Shenkolla Watershed, South Central Ethiopia

Environmental Systems Research

Table 8 Interaction effects of landscape positions and land use types on CEC and exchangeable bases (mean ± SE)

Soil property	Landscape position	Land use types			Total
Soil property	Landscape position	Cultivated land	Grazing land	Forest	Total
CEC	Lower	31.33 ± 0.333	38.67 ± 0.202	42.67 ± 0.333	37.56 ± 1.668^b
	Medium	24.67 ± 0.333	33.33 ± 0.352	36.67 ± 0.333	31.56 ± 1.796^bc
	Upper	18.67 ± 0.333	25.00 ± 0.577	30.67 ± 0.333	24.78 ± 1.746^c
	Total	24.89 ± 1.837^a	32.33 ± 2.000^bc	36.67 ± 1.740^c
Ex Ca	Lower	13.67 ± 0.115	16.00 ± 0.000	17.33 ± 0.115	15.67 ± 0.553^a
	Medium	10.33 ± 0.145	13.00 ± 0.000	15.33 ± 0.333	12.89 ± 0.735^b
	Upper	8.00 ± 0.115	12.40 ± 0.115	12,67 ± 0.882	10.22 ± 0.722^c
	Total	10.67 ± 0.833^ab	13.80 ± 0.000^bc	15.11 ± 0.735^c
Ex Mg	Lower	6.00 ± 0.006	10.00 ± 0.014	10.33 ± 0.015	8.78 ± 0.703^ab
	Medium	5.00 ± 0.008	6.00 ± 0.001	10.00 ± 0.020	7.00 ± 0.764^ab
	Upper	3.00 ± 0.011	5.00 ± 0.008	7.33 ± 0.012	5.11 ± 0.633^c
	Total	4.67 ± 0.441^a	7.00 ± 0.764^b	9.22 ± 0.494^c
Ex K	Lower	4.00 ± 0.020	4.00 ± 0.020	5.67 ± 0.230	4.56 ± 0.294^a
	Medium	2.33 ± 0.333	3.00 ± 0.011	4.00 ± 0.041	3.11 ± 0.261^bc
	Upper	2.00 ± 0.014	2.00 ± 0.034	3.00 ± 0.087	2.33 ± 0.167^c
	Total	2.78 ± 0.324^ab	3.00 ± 0.289^ab	4.22 ± 0.401^c
Ex Na	Lower	0.13 ± 0.012	0.14 ± 0.006	0.22 ± 0.005	0.16 ± .014^a
	Medium	0.12 ± 0.008	0.13 ± 0.005	0.21 ± 0.005	0.15 ± .014^a
	Upper	0.10 ± 0.006	0.12 ± 0.005	0.18 ± 0.003	0.13 ± .012^a
	Total	0.12 ± 0.006^ab	0.13 ± 0.004^ab	0.20 ± 0.005^c

Means in the same row for land use and in the same column for landscape position followed by the similar letters are not significantly different at (p = 0.05)