The contrasting change in the porous system, but
no change in SOC concentration due to drying may explain why the
positive correlation between tensile strength and SOC concentration at 1st drainage faded after 2nd and 3rd drainage. The tensile
strength after the 3rd drainage was positively correlated with total
porosity and the porosities of macropores (>30mm) (r= 0.85,
P= 0.020) and micropores (