Status of Soil Acidity under Different Land Use Types and Soil Depths: The Case of Hojje Watershed of Gomibora District, Hadiya Zone, Southern Ethiopia
Table 6
Pearson correlation coefficient (r) between soil acidity and other soil properties (N = 24).
H2O
KCl
Ex. Ac
AS
OM
TN
P
ECEC
Ca+2
Mg+2
K+
Na+
BS
CEC
pH (KCl)
0.97∗∗
1.00
Ex. acidity
0.94∗∗
0.96∗∗
1.00
AS%
0.96∗∗
0.97∗∗
0.99∗∗
1.00
Om%
0.80∗∗
0.80∗∗
0.87∗∗
0.87∗∗
1.00
TN
0.67∗∗
0.66∗∗
0.75∗∗
0.74∗∗
0.95∗∗
1.00
Aval. P
0.83∗∗
0.79∗∗
0.82∗∗
0.82∗∗
0.90∗∗
0.91∗∗
1.00
ECEC
0.95∗∗
0.90∗∗
0.89∗∗
0.89∗∗
0.82∗∗
0.76∗∗
0.93∗∗
1.00
Ca+2
0.96∗∗
0.93∗∗
0.93∗∗
0.92∗∗
0.86∗∗
0.79∗∗
0.93∗∗
0.99∗∗
1.00
Mg+2
0.96∗∗
0.92∗∗
0.91∗∗
0.91∗∗
0.82∗∗
0.75∗∗
0.92∗∗
0.89∗∗
0.94∗∗
1.00
K+
0.97∗∗
0.98∗∗
0.98∗∗
0.98∗∗
0.81∗∗
0.67∗∗
0.80∗∗
0.92∗∗
0.94∗∗
0.94∗∗
1.00
BS%
0.96∗∗
0.97∗∗
0.99∗∗
0.99∗∗
0.87∗∗
0.74∗∗
0.82∗∗
0.89∗∗
0.92∗∗
0.91∗∗
0.98∗∗
0.38 ns
1.00
CEC
0.93∗∗
0.89∗∗
0.88∗∗
0.88∗∗
0.82∗∗
0.77∗∗
0.94∗∗
1.00∗∗
0.99∗∗
0.99∗∗
0.90∗∗
0.32 ns
0.88∗
1.00
∗∗Correlation is significant at the 0.01 level (),∗correlation is significant at the 0.05 level (), and (ns) indicates there was no significant difference at 0.05 level. n = 24; Ex. acidity, exchangeable acidity; Av.P, available phosphorous; AS%, acid saturation percentage; ECEC, effective cation exchange capacity; CEC, cation exchange capacity; OM, organic matter; TN, total nitrogen; BS, base saturation percentage.
