Full TGIF Record # 83940
Item 1 of 1
Web URL(s):http://elibrary.asabe.org/azdez.asp?JID=3&AID=11070&CID=t2002&v=45&i=5&T=2&redirType=
    Last checked: 10/13/2015
    Requires: PDF Reader
Publication Type:
Author(s):Flanagan, D. C.; Chaudhari, K.; Norton, L. D.
Author Affiliation:Flanagan: ASAE Member Engineer, Agricultural Engineer; Norton: Soil Scientist and Research Leader, USDA-ARS National Soil Erosion Research Laboratory, West Lafayette, Indiana; and Chaudhari: Remediation Engineer, BP-Group Enviornmental Management Company, Carson, California
Title:Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part I simulated rainfall conditions
Source:Transactions of the American Society of Agricultural Engineers. Vol. 45, No. 5, September/October 2002, p. 1327-1337.
# of Pages:11
Publishing Information:St. Joseph, MI
Keywords:TIC Keywords: Soil amendments; Polyacrylamides; Surface runoff; Slope; Precipitation; Ground cover; Erosion; Grading; Seeding; Mulching
Abstract/Contents:"Steep slopes consisting of disturbed soil are very often found in construction, landfill, and surface mining situations. Although legislation and economics dictate that vegetative cover be established on these slopes as rapidly as possible, the occurrence of large rainfall events during critical periods of vegetation establishment can frequently cause extensive soil loss. Sediment generated from erosion can impair off-site water quality, and on-site damages to the eroded region can be so extensive that expensive earthmoving, regrading, reseeding, and remulching may be necessary. We evaluated the effectiveness of two soil treatments for reducing runoff and soil loss from a silt loam topsoil placed on a construction 32% slope. The three treatments were an untreated control, 80 kg ha-1 anionic polyacrylamide (PAM) applied as a liquid spray, and 80 kg ha-1 PAM as a liquid spray combined with a dry granular application of 5 Mg ha-1 of gypsum. Replicated plots were subjected to a range of rainfall intensities under a programmable rainfall simulator, and resulting runoff and sediment loss were measured. In the first event of 69 mm h-1 uniform rainfall applied for one hour to initially dry soil, the PAM and PAM with gypsum treatments significantly reduced runoff by 90% and sediment yield by 99%, compared to the control. Total runoff through a series of simulated rainfall events was reduced by 40% to 52%, and sediment loss was reduced by 83% to 91% for the plots treated with PAM and PAM plus gypsum, respectively. These results indicate that the use of PAM alone or in combination with gypsum can significantly reduce runoff and soil loss from large storm events, and may be a cost-effective approach to protect the soil during critical periods of vegetation establishment, particularly for disturbed soils on steep slopes."
See Also:See also part II, "Natural rainfall conditions", p. 1339-1351, R=83942 R=83942
Note:Pictures, b/w
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Flanagan, D. C., K. Chaudhari, and L. D. Norton. 2002. Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part I simulated rainfall conditions. Trans. Proc. Am. Soc. Agric. Eng. 45(5):p. 1327-1337.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=83940
If there are problems with this record, send us feedback about record 83940.
Choices for finding the above item:
Web URL(s):
    Last checked: 10/13/2015
    Requires: PDF Reader
Find Item @ MSU
MSU catalog number: S 671 .A452
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)