Figure 7
From: Imaging local soil kinematics during the first days of maize root growth in sand
Identification of root-sheared soil with \(\varepsilon _\text {q}>1\%\) in both strain fields – deviatoric and volumetric (the white dashed line defines the boundaries “engaged volume” used to plot \(\varepsilon _\text {q}\) vs. \(\varepsilon _\text {v}\)). The plots on the right hand-side show volumetric strain \(\varepsilon _v\) versus deviatoric strain \(\varepsilon _q\). From top to bottom: the effect of maize root growth on fine denser sand, fine looser sand, and coarse looser sand.
