Effectiveness of Community-Based Soil and Water Conservation in Improving Soil Property in Damota Area, Southern Ethiopia

Table 3

Pearson coefficient of correlation between soil physicochemical properties.

		Sand (%)	Clay (%)	Silt (%)	BD (g·cm^−3)	pH (H2O)	OC (%)	TN (%)	Av. P (ppm)	CEC and exch. Basis (cmol (+)kg^−1)
										CEC	Na	K	Ca^2+	Mg^2+
Sand (%)	1		−0.734	0.076	−0.140	−0.242	−0.158	−0.243	−0.306	−0.234	−0.044	−0.147	0.038	0.121
Clay (%)			1	−0.608	0.018	0.258	0.480	0.696	0.388	0.783	0.186	0.248	0.126	0.090
Silt (%)				1	0.157	−0.085	0.125	−0.459	−0.132	0.134	0.027	0.269	0.064	0.036
BD (g cm^−3)					1	0.070	0.672	−0.044	−0.096	0.070	0.201	−0.070	0.045	0.586
pH (H2O)						1	0.293	0.372	0.132	0.271	0.172	0.226	0.05	0.002
OC (%)							1	0.779	0.140	0.432	0.039	0.069	0.640	0.126
TN (%)								1	0.106	0.574	0.048	0.153	0.206	0.147
Av. P (ppm)									1	0.030	0.141	0.070	0.150	−0.136
CEC (cmol(+) kg^−1)										1	0.019	0.225	0.151	0.158
Exch. basis (cmol(+) kg^−1)	Na										1	0.177	0.298	0.264
	K											1	0.214	0.074
	Ca^2+												1	−0.021
	Mg^2+													1

BD, bulk density; pH, soil reaction; OC, organic carbon; TN, total nitrogen; AV. P, available phosphorous; CEC, cation exchange capacity. Na, K, Ca²⁺, and Mg²⁺ are exchangeable sodium, potassium, calcium, and magnesium, respectively; and implies the mean correlation between soil properties significant at and 0.01 levels, respectively.