Effect of Polyacrylamide Application on Runoff, Erosion
Soil erosion affects soil productivity and environmental quality. A laboratory research experiment under simulated heavy rainfall with tap water was conducted to investigate the effects of anionic polyacrylamide (PAM) application rates (0, 0.5, 1.0, and 2.0 g m −2) and molecular weights (12 and 18 Mg mol −1) on runoff, soil erosion, and soil nutrient loss at a slope of 5°.
The nutrient loss caused by soil erosion is the main reason for soil degradation and environmental pollution, and polyacrylamide (PAM) as a common soil amendment has a great influence on runoff
Effects of polyacrylamide on soil erosion and nutrient
Download Citation | Effects of polyacrylamide on soil erosion and nutrient losses from substrate material in steep rocky slope stabilization projects | Erosion of denuded steep rocky slopes causes
Effects of polyacrylamide on soil erosion and nutrient losses from substrate material in steep rocky slope stabilization projects. Science of The Total Environment, 554–555 , 26–33.
Effect of Polyacrylamide Application on Water and Nutrient
Water-soluble polyacrylamide (PAM) is known as one of effective treatments for enhancing infiltration, re-ducing runoff and soil loss, and in some cases reducing nutrient losses from soils [4]-[6]. PAMs are inexpensive and can be applied to the soil surface quickly before irrigation [5]. In column experiments in which the surfaces
The statistical data demonstrated that the between-subjects effects of PAM application rate and slope gradient on K +, NH 4 +, and NO 3 − mass losses from the soil surface were significant at the p < 0.001 level, and their contributions to the variation of tested nutrient losses were greater than 0.924 .
Effect of Polyacrylamide Application on Water and Nutrient
An understanding of nutrient movement in soil is important for developing management strategies to minimize nutrient leaching and surface movement, thus improving nutrient uptake by plants, maintaining a sustainable soil system, and even protecting groundwater quality. Polyacrylamide (PAM) is known as one of soil conditioner that functions to stabilize soil structure, increase infiltration
Effects of polyacrylamide on soil erosion and nutrient losses from substrate material in steep rocky slope stabilization projects Science of The Total Environment 2016 554-555 Carbon and nitrogen stable isotope ratios can estimate anionic polyacrylamide degradation in soil Geoderma 2008 145:1-2
Polyacrylamide and Rill Flow Rate Effects on Erosion
Polyacrylamide and Rill Flow Rate Effects on Erosion and Ammonium Nitrogen Losses Overland flow caused by rainfall is one of the critical factors influencing soil erosion and loss of soil nutrients. Therefore, the study on the mechanism and controlling measures of soil nutrient transport proposed is considered important.
Anionic polyacrylamide (PAM) is a soil amendment that has been shown to reduce runoff related soil erosion and nutrient loss from rainfall and irrigation induced runoff. We hypothesized that application of wastewater containing dissolved PAM would reduce nutrient loss under rainfall by increasing percolation and reducing runoff and sediment
[PDF] Combined effects of polyacrylamide and nanomagnetite
A simulation experiment was conducted to investigate the effects of polyacrylamide (PAM) application rates (0, 0.5, 1, 2 and 4 g/m2), rainfall intensities (30, 60 and 90 mm/h) and the applied positions (top, middle and bottom with application rate of 2 g/m2) on runoff, soil and total nitrogen (TN) losses at loess slope.
Polyacrylamide and straw residue effects on irrigation furrow erosion and infiltration R.D. Lentz and D.L. Bjorneberg ABSTRACT: Water-soluble anionic polyacrylamide (PAM) is a highly effective erosion deterrent in furrow irrigation, but little is known about the effect of plant residues on PAM efficacy. We
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