Soil and water conservation practice effects on soil physicochemical properties and crop yield in Ethiopia: review and synthesis

Ecological Processes

Table 6 Multiple linear regression results of reviewed articles

Determinant factors	Unstandardized coefficients		Standardized coefficients	T	Sig.	Collinearity statistics
(Constant)	B	Std. error	Beta	T	Sig.	Tolerance	VIF
Year of SWC (age)	46.66	9.40		4.96	0.00**
Mean annual rainfall	2.91	0.74	0.98	3.96	0.00**	0.23	4.43
Mean attitude	− 0.01	0.00	− 0.31	− 2.37	0.04*	0.80	1.25
Mean annual temperature	− 0.01	0.01	− 0.88	− 4.59	0.00**	0.38	2.66
R² = 86.1	Adjusted R² = 80.5			F = 15.4, P = 0.00