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Effectiveness of Polyacrylamide in Reducing Soil Erosion on Steep Slopes

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  052052,  2005 ASAE Annual Meeting . (doi: 10.13031/2013.18906) @2005
Authors:   M. Partington, G. Mehuys
Keywords:   erosion, erosion control, polyacrylamide, rainfall simulators

We conducted a study to determine whether the use of polyacrylamide (PAM) to stabilize slopes could be a "best management practice" to reduce soil erosion on forest road embankments. Experiments involving two different PAM application rates (10 and 20 kg/ha) were conducted using natural rainfall and simulated (indoor) rainfall.

The study results suggest that PAM provided no statistically significant erosion control after natural rainfall on a loam soil. In the simulated rainfall experiment, PAM applied at both 10 and 20 kg/ha significantly reduced soil erosion (by 84 and 76%) and the turbidity of runoff water (by 99%) on a silt loam soil.

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