Figure 7
Solid-pore interface (mm2) for depression (a) and slope (b) in the control cores (dash) and in plant grown cores (solid) in prairie (blue) and switchgrass (red) cropping systems. Shown are means with error bars representing standard errors (n = 3). Lower case letters indicate significant differences between topographical positions within each system for plant-grown cores (p < 0.05); upper case letters indicate significant differences between cropping systems within each topographical position for plant-grown cores (p < 0.05).
