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Soil Berms as an Alternative to Steel Plate Borders for Runoff Plots

^a School of Natural Resources, The Ohio State Univ., 2021 Coffey Rd., Columbus, OH 43210-1085
^b Environmental Soil Sci., 302 Anheuser-Busch Natural Resources Building, Univ. of Missouri–Columbia, Columbia, MO 65211
^c 251 Agricultural Engineering Building, Univ. of Missouri–Columbia, Columbia, MO 65211

View larger version (14K): [in a new window]   Fig. 1. Mean soil loss on an event basis from soil berms treated with polyacrylamide (PAM), geotextile fabric (GF), and PAM plus GF (PAM-GF), and a control berm without PAM or GF; (A) laboratory and (B) field for the dry and wet run rainfall simulations. Error bars represent standard deviation of the mean (n = 3).

View larger version (17K): [in a new window]   Fig. 2. Mean soil loss within the event from soil berms treated with polyacrylamide (PAM) and PAM plus geotextile fabric (PAM-GF), and a control berm without PAM or GF under field conditions for the (A) dry and (B) wet run rainfall simulations. Error bars represent the pooled standard error of the treatment means (n = 3).

View larger version (16K): [in a new window]   Fig. 3. Mean runoff on an event basis from soil berms treated with polyacrylamide (PAM), geotextile fabric (GF), and PAM plus GF (PAM-GF), and a control berm without PAM or GF using simulated rainfall; (A) laboratory and (B) field. Error bars represent standard deviation of the mean (n = 3).

View larger version (15K): [in a new window]   Fig. 4. Mean runoff within the event from soil berms treated with polyacrylamide (PAM), PAM plus geotextile fabric (PAM-GF), and a control berm without PAM or GF under field conditions for the (A) dry- and (B) wet-run rainfall simulations. Error bars represent the pooled standard error of the treatment means (n = 3).