Caption: FIGURE 6: It shows the effect of natural convection on the velocity vector in the cross section at buffer region
of main trough.
. The buffer region
is located between the A [right arrow] C region and the C [right arrow] A region or between the control region and the C [right arrow] A region.
Because of a wide difference in velocities, the buffer region
experiences turbulent eddies.
However, each acre within the 100-250 m buffer region
was associated with a marginally significant increase in herbicide concentrations (e.g., 2.4-fold increase for 10 acres).
Interactions between electrons in the channel and a trap in the buffer region
will not show a strong [V.sub.gs] dependence.