Nutrient and Sediment Removal by Vegetated Filter Strips

Magette, W. L.; Brinsfield, R. B.; Palmer, Robert E. A.; Wood, J.

doi:10.13031/2013.31054

Cited by 226 publications

(17 citation statements)

References 2 publications

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“…The establishment of vegetative filter strips (VFS) has been shown to substantially reduce nutrients and sediment in runoff (Dillaha et al, 1989;Magette et al, 1989;Coyne et al, 1995). The effectiveness of VFS is influenced by runoff rate, length of the vegetative filter, and characteristics of the runoff area (Bingham et al, 1980;Daniels and Gilliam, 1996;and Robinson et al, 1996).…”

mentioning

confidence: 99%

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Gilley¹,

Bartelt–Hunt²,

Eskridge³

et al. 2017

Transactions of the ASABE

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Abstract. The use of setback distances for manure application on cropland areas adjacent to surface water bodies could serve a function similar to vegetative filter strips. However, little information currently exists to identify the setback distances necessary to effectively reduce the transport of contaminants in runoff. The objective of this study was to determine the effects of setback distance and runoff rate on concentrations of selected constituents in runoff following land application of swine slurry to a no-till cropland area in southeast Nebraska. The study site had a residue cover of 7.73 Mg ha-1 and a slope gradient of 4.9%. The twenty plots examined during the investigation were 3.7 m across the slope by 4.9, 7.9, 11.0, 17.1, or 23.2 m long. An initial set of rainfall simulation tests were completed to identify background concentrations of selected constituents. Swine slurry was then applied to the upper 4.9 m of each plot, and additional rainfall simulation tests were conducted on the same plots examined previously. A first-order exponential decay function was used to estimate the effects of setback distance on concentrations of selected constituents. A setback distance of 12.2 m reduced runoff concentrations of dissolved phosphorus (DP), NH4-N, total nitrogen (TN), boron, chloride, manganese, potassium, sulfate, zinc, electrical conductivity (EC), and pH to background values similar to those measured for the no-slurry condition. Runoff rate significantly influenced transport of several of the constituents, with concentrations generally decreasing as runoff rate increased. The transport of selected pollutants in runoff was significantly reduced when setback areas were employed. Keywords: Filter strips, Land application, Manure management, Manure runoff, Nitrogen, Nutrients, Phosphorus, Runoff, Swine slurry, Water quality.

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mentioning

confidence: 99%

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Gilley¹,

Bartelt–Hunt²,

Eskridge³

et al. 2017

Transactions of the ASABE

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“…The grass buffer strip models can basically be more biased as grassed areas are expected to have more variations in surface configurations than fallow fields around it. Notable variance can be observed in the performance of grass strips in same conditions in removing sediment (Daniels and Gilliam, 1996;Magette et al, 1989). The other important factor that causes the bias is that it is not possible to consider all effective factors involved.…”

Section: Discussionmentioning

confidence: 99%

“…Results from Young et al (1980), Dillaha et al (19 89), and Magette et al (1989) show that the efficiency of grass strips in removing sediment is 15 to 40% higher in dry soils comparing to wet soils in the same areas.…”

Section: Infiltration and Antecedent Soil Moisturementioning

confidence: 91%

“…Controlled condition or flume studies have been conducted mostly to provide an undertanding of the effectiveness of different factors in vegetated buffer strips performance in controlled environments (Ghadiri et al, 2001;Hussein et al, 2007a, b;Meyer et al, 1995). Field experiments have been carried out to assess the effectiveness of vegetated buffer strips under natural conditions but with less control over interfering factors (Daniels and Gilliam, 1996;Ghadiri et al, 2011;Magette et al, 1989;Parsons et al, 1994;Robinson et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Modelling Sediment Trapping by Non-Submerged Grass Buffer Strips Using Nonparametric Supervised Learning Technique

Akram¹

2015

J ENV INFORM

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ABSTRACT. Grass strips are known as one of the most effective management practices in controlling sediment loss to rivers and other surface water bodies. Some physically-based models have been previously developed to predict the amount of sediment retention in grass strips. Although physically-based models can explain the effects and interactions of various factors, they tend to be sophisticated as they require a large amount of input data. A nonparametric supervised learning statistical model was developed to predict the efficiency of grass strips in trapping sediments. Grass type and density, inflow sediment particle size distribution, slope steepness, length of strip, and the antecedent soil moisture were the five major factors on which the statistical model was built. The model was assessed by comparing with an independent dataset. Estimated bias, coefficient of model efficiency, mean absolute percentage error, Pearson product-moment correlation coefficient of the model were 1.01, 0.54, 18.1and 76% respectively. Testing the model predictions, permuting the input data, showed that inflow sediment particle size distribution, length of the buffer strip, and the antecedent soil moisture are the most important factors upon the performance of grass strips in trapping sediments. From the model outputs for a range of likely scenarios it was concluded that very long strips are needed in extreme conditions such as steep slopes, wet soil and sparse grass strips in order to trap sediments effectively.

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“…Vegetative filter strips (VFS) are a type of conservation buffer that has been effectively used on cropland areas. The establishment of VFS at the bottom of a hillslope is a conservation practice that has been shown to substantially reduce nutrients and sediment in runoff (Dillaha et al, 1989;Magette et al, 1989;Coyne et al, 1995). VFS are usually established using perennial grasses.…”

mentioning

confidence: 99%

Removal of Cattle Manure Constituents in Runoff from No-Till Cropland as Affected by Setback Distance

2016

Trans. ASABE

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Nutrient and Sediment Removal by Vegetated Filter Strips

Cited by 226 publications

References 2 publications

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Setback Distance Requirements for Removal of Swine Slurry Constituents in Runoff

Modelling Sediment Trapping by Non-Submerged Grass Buffer Strips Using Nonparametric Supervised Learning Technique

Removal of Cattle Manure Constituents in Runoff from No-Till Cropland as Affected by Setback Distance

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