polyacrylamide soil amendment effects on runoff and sediment

polyacrylamide soil amendment effects on runoff and sediment

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT

The objective of this study was to evaluate the effects of PAM and gypsum soil amendment treatments on runoff and sediment yield under controlled conditions in the field. A rainfall simulation study was conducted on a disturbed soil in large (3 m Ü 9 m) plots on a steep slope. The main hypothesis was that PAM and PAM combined with gypsum

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polyacrylamide soil amendment effects on runoff and sediment

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT

of soil properties by applying chemical amendments to the soil. Many recent studies have shown that the use of synthetic organic polymers, such as polyacrylamide (PAM), as surface soil amendments results in benefits including reduction of runoff volumes, decrease in sediment yield, and stabilization of soil structure (Seybold, 1994).

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polyacrylamide soil amendment effects on runoff and sediment

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT YIELD ON STEEP SLOPES: PART II. NATURAL RAINFALL CONDITIONS. Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

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polyacrylamide soil amendment effects on runoff and sediment

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT

POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF AND SEDIMENT YIELD ON STEEP SLOPES: PART I. SIMULATED RAINFALL CONDITIONS. Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

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polyacrylamide soil amendment effects on runoff and sediment

Polyacrylamide soil amendment effects on runoff and sediment

Request PDF | Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part II. Natural rainfall conditions | Steep slopes consisting of disturbed soil are very often

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polyacrylamide amendment for erosion and runoff control on

Polyacrylamide amendment for erosion and runoff control on

Tested soil amendments had varied responses on TRO, RO, and SL within soils. For reducing SL, a high level of PAM had better performance at a steep slope compared to a low level of PAM or [less than or equal to] 40% slope. Generally, the applications of PAM amendment were not effective in reducing RO, but increased TRO.

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effects of polyacrylamide and gypsum on soil erosion and

Effects of Polyacrylamide and Gypsum on Soil Erosion and

minimize runoff and total soil loss, the period prior to the establishment of vegetation is crucial as the soil surface is in bare condition (Carroll et al., 2000). For this reason, the application of soil amendment such as gypsum and polyacrylamide (PAM) in this period can be beneficial in minimising runoff and soil loss.

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polyacrylamide amendment for erosion and runoff control on

POLYACRYLAMIDE AMENDMENT FOR EROSION AND RUNOFF CONTROL ON

POLYACRYLAMIDE AMENDMENT FOR EROSION AND RUNOFF CONTROL ON SOILS OF DIFFERING CHARACTERISTICS Presented by Sang Soo Lee A candidate for the degree of Doctor of Philosophy And hereby certify that in their opinion it is worthy of acceptance. Clark J. Gantzer Professor Clark J. Gantzer, Ph.D. Stephen H. Anderson Professor Stephen H. Anderson, Ph.D.

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polyacrylamide soil amendment effects on runoff and sediment

Polyacrylamide soil amendment effects on runoff and sediment

Request PDF | Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part II. Natural rainfall conditions | Steep slopes consisting of disturbed soil are very often

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polyacrylamide amendment for erosion and runoff control on

Polyacrylamide amendment for erosion and runoff control on

Tested soil amendments had varied responses on TRO, RO, and SL within soils. For reducing SL, a high level of PAM had better performance at a steep slope compared to a low level of PAM or [less than or equal to] 40% slope. Generally, the applications of PAM amendment were not effective in reducing RO, but increased TRO.

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effects of polyacrylamide and gypsum on soil erosion and

Effects of polyacrylamide and gypsum on soil erosion and

Runoff and sediment samples were collected at specific time intervals during the experiments. Total soil loss from the treated soil and spoil were significantly lower than for control. Total soil loss for soil were reduced by 39%, 58%, and 80%, respectively for gypsum, PAM, and PAM+gypsum treatments, compared to the control.

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using polyacrylamide to reduce soil erosion

Using Polyacrylamide to Reduce Soil Erosion

Because polyacrylamide attaches to the soil particles and binds them together, water containing a lot of sediment may result in sediment settling out before water is diverted into the furrows. In general, this does not affect PAM’s effectiveness, but with extremely sediment-laden ditch water, sediment may build up and restrict flow in the

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impact of raindrop diameter and polyacrylamide application on

Impact of raindrop diameter and polyacrylamide application on

Raindrop splashing is one of the driving forces of soil erosion, and it also leads to the loss of soil nutrients. However, the effects of raindrop splashing on nitrogen loss and the mechanisms of detachment are still not well understood, especially under different types of rainfall and soil amendment applications, such as polyacrylamide, which has been widely used to reduce soil erosion.

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effect of gypsum and polyacrylamide application on

Effect of Gypsum and Polyacrylamide Application on

longer duration rainfall for soil and water conservation. Effects of gypsum and PAM application on soil loss Figure 2 shows sediment concentrations of runoff as a function of rainfall duration. The solely gypsum-amend- ed soil showed a constantly high sediment concentration through a rainfall event. The solely PAM-applied soils

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effect of co-use of fly ash and granular polyacrylamide on

Effect of Co-Use of Fly Ash and Granular Polyacrylamide on

Coal fly ash (FA) and polyacrylamide (PAM) are two common amendments for improving hydraulic properties of sandy soil. However, their interaction effect on infiltration-runoff processes in sandy soil has been scarcely reported. In this study, FA and anionic PAM granules were mixed thoroughly with a 0–0.2 m sandy soil layer at FA rates of 0%, 10%, and 15% (w/w soil), and PAM rates of 0%

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effects of biochar on soil infiltration, runoff and sediment

Effects of biochar on soil infiltration, runoff and sediment

Biochar has been considered as a useful amendment to ameliorate soil physical and chemical properties. This study aims to incorporate a wood biochar (WB), pyrolized by 400℃, into a clayey red soil with a slope gradient of 5o to improve infiltration and reduce runoff and sediment production. Field trials were conducted in four treatments including control, biochar (4%, w/w) (WB), compost (1%

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