There was a tendency for the vertical interval between
bench terraces to become higher as the slope increased.
Slopes varied from 45% to 90% in all types, and the vertical
interval between terraces ranged from 0.39 to 1.09 m. The
vertical interval between terraces could be expressed as
0.009s to 0.014s, where s is the slope as a percentage.
However, the horizontal intervals between bench terraces
ranged from 1.25 to 2.05 m, as indicated by the equations in
Table 4.