Scatter Plot from Scientific Research

The observed median critical soil water potential thresholds ( crit ) for FN (open circles) and SFN (crosses) confirm the expected decline with increasing sand fraction (note the simulations (filled circles and red solid curve) correspond to Fig. 1d , and the log 10 -transformed linear regressions for all crit , not only the medians, are shown as solid black, with FN and SFN shown separately as dashed–dotted and dotted grey lines, respectively). Adjusted R 2 values (R 2 adj ) and two-sided P values of the linear regression slopes (regression t -test) are indicated. * P < 0.05, ** P < 0.01, *** P < 0.001. NS, not significant (P > 0.05).

DOI