The use of polyacrylamide (pam) to reduce erosion on disturbed piedmont soils.
Glazer, Rebekah Lillian
MetadataShow full item record
Land disturbing activities during urban development increase soil erosion and thus turbidity in surface waters. To combat this problem Best Management Practices (BMP) such as re-vegetation must be followed during construction. Recently, Polyacrylamide (PAM), a synthetic soil conditioner, has been accepted as a BMP in Georgia. This study tested whether spray applications of PAM in conjunction with hydroseed (a common means of grass re-vegetation) would improve erosion control from slopes. Rainfall simulations in the laboratory demonstrated that PAM could effectively reduce erosion and runoff. In field trials at three locations using PAM+hydroseed, hydroseed alone, and a control estimated total solids loss was 25, 10, and 9 Mg ha -1 , respectively, while total sediment accumulation at the lower plot edge was 8.3, 4.6, and 3.9 cm, respectively. Both treatments reduced erosion compared to the control but no significant differences were apparent between the two treatments. PAM had no added benefit in controlling erosion.