Table 6.

Best predictor among environmental driving forces for the temporal change in soil hydraulic property parameters (r² coefficient of determination, p significance of regression model, positive or negative sign in brackets indicates direction of influence).

Δproperty	Best predictor (slope)	r2	p
Δk(h) h = 0 cm	Wet–dry cycle intensity (+)	0.43	0.03*
Δk(h) h = 0.5 cm	Wet–dry cycle intensity (+)	0.54	0.01*
Δk(h) h = 2.5 cm	Wet–dry cycle intensity (+)	0.37	0.05*
Δk(h) h = 7 cm	Moisture trend (−)	0.21	0.15ns
Δk(h) h = 10 cm	Moisture trend (−)	0.22	0.14ns
Δε	Wet–dry cycle intensity (+)	0.44	0.03*
Δrm	Wet–dry cycle intensity (+)	0.55	< 0.01**
Δσ	Wet–dry cycle frequency (−)	0.59	0.01**
Δϕ	Rainfall intensity (+)	0.46	0.04*

K(h) hydraulic conductivity, ε effective macroporostiy, r_m median pore radius, σ pore radius standard deviation, ϕ total porosity.