The Potential of Vegetated Filter Strips to Reduce Pesticide Transport

Baker, James L.; Mickelson, Steven K.; Arora, Kapil; Misra, Anuradha

doi:10.1021/bk-2000-0751.ch018

Cited by 10 publications

(18 citation statements)

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“…For example, in a study conducted at the Swine Nutrition Center at Iowa State University (Ames, IA, USA), VFS, consisting mainly of smooth brome grass, had an average infiltration of 59% of surface water, resulting in removal rates of atrazine and metolachlor of 61% and 63%, respectively [6]. Reduction of more strongly sorbed pesticides by VFS may also be achieved by adsorption to vegetation and soil within the VFS [14].…”

Section: Introductionmentioning

confidence: 99%

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Effect of grasses on herbicide fate in the soil column: Infiltration of runoff, movement, and degradation

Belden

Coats

2004

Enviro Toxic and Chemistry

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The objective of the present study was to evaluate if the presence of grass or the type of grass influences the environmental fate of herbicides within a soil column. Intact soil columns were planted with either smooth brome, big bluestem, tall fescue, switchgrass, or a mixture of prairie grasses or were left unvegetated. Artificial runoff containing atrazine, metolachlor, and pendimethalin was applied to the columns and allowed to infiltrate, and the resulting leachate was collected at the bottom of the soil column. This process was repeated on day 7 with herbicide-fortified runoff and on days 14 and 21 with water only. Following the leaching experiments, soil from the columns was fortified with either [14C]atrazine or [14C]metolachlor to measure pesticide degradation potential. The mean time necessary for infiltration of the artificial runoff decreased from 7.5 h for unvegetated to 3.4 h for grassed soil columns, and the type of grass did not have a significant effect. Neither the type of grass nor the presence of grass caused a significant change in the total amount of herbicide that leached through the columns. However, the presence of some grasses did decrease the amount of herbicide that leached in the final two events (i.e., additions not fortified with herbicide). Fescue was the least effective, reducing the amount of leached atrazine and metolachlor by 13% and 33% respectively, and mixed prairie grass was most effective, with reductions of 43% and 44%, respectively. In addition, atrazine and metolachlor degraded more rapidly in soil vegetated by some grasses. Mixed prairie grass had the greatest effect, increasing atrazine mineralization by 260% and formation of metolachlor-bound residue by 760%.

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Section: Introductionmentioning

confidence: 99%

“…Several factors can influence the efficacy of VFS, including soil type, slope, length, vegetation density, and vegetation type [14]. Most VFS research has been conducted using field studies.…”

Section: Introductionmentioning

confidence: 99%

Effect of grasses on herbicide fate in the soil column: Infiltration of runoff, movement, and degradation

Belden

Coats

2004

Enviro Toxic and Chemistry

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“…Vegetated filters promise to reduce the loads of pollutants in runoff from agricultural land (Baker et al, 2000;Dosskey, 2001Dosskey, , 2002Karssies and Prosser, 1999). These pollutants include herbicides, which have the potential to damage the biofilter itself.…”

Section: Discussionmentioning

confidence: 99%

“…These may range in scale from local filter/buffer strips and grassed waterways near agricultural fields, to more extensive natural grasslands that may treat runoff at a distance from larger areas of cropped land (Baker et al, 2000;Cornish et al, 2004;Dosskey, 2001Dosskey, , 2002Karssies and Prosser, 1999). Pollutant loads are reduced by infiltration that removes pollutants dissolved in water or attached to fine particles, and adsorption/sedimentation that reduces concentration in runoff (Connolly et al, 2002;Dosskey, 2001).…”

Section: Introductionmentioning

confidence: 99%

Atrazine Tolerance of Grass Species with Potential for Use in Vegetated Filters in Australia

Popov

Cornish

2006

Plant Soil

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The response of introduced (Pennisetum clandestinum Hochst.) and native (Stipa aristiglumis F. Muell., Themeda australis (R. Br.) Stapf, Danthonia spp. (L.) grasses to the herbicide atrazine was studied in plants with the potential for use in vegetated filters (biofilters) designed to reduce chemical loads in agricultural runoff. The response was detected by photosynthetic inhibition using leaf chlorophyll fluorescence. With continuous short-term (14 days) dosing with atrazine in sand culture, P. clandestinum showed the greatest tolerance, regardless of the dose (20-500 lg/L). In a clay vertosol soil in the glasshouse, the four species were tolerant to longer-term (84 days) application of three successive doses of simulated run-on, each dose containing 100 lg/

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“…On average, AgB (6.7 kg ha -1 ) watersheds had about 49% lower sediment loss compared to control (13.0 kg ha -1 ) watersheds. Environmental benefits of agroforestry buffers have been widely studied in agricultural settings and have been proven to reduce nutrient losses from agricultural lands (Baker et al 2000;Udawatta et al 2002). Buffers can remove up to 97% of sediments in runoff before entering into a stream if these buffers are well maintained (Lee et al 2003;Lowrance and Crow 2002).…”

Section: Measured Runoff and Sediment Yieldmentioning

confidence: 99%

APEX model simulation of runoff and sediment losses for grazed pasture watersheds with agroforestry buffers

et al. 2010

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Buffers have been found to reduce nonpoint source pollution (NPSP) from watersheds. Hydrologic simulation models assist in predicting the effects of buffers on runoff and sediment losses from small watersheds. The objective of this study was to calibrate, validate and simulate runoff and sediment losses and compare buffer effects on NPSP losses relative to control watersheds (no buffer) for seven years. The experimental design consists of four watersheds under pasture management which were monitored from 2002 through 2008; two with agroforestry buffers (AgB 100 and AgB 300) and two control watersheds (CW 400 and CW 600). Pasture areas included red clover (Trifolium pretense L.) and lespedeza (Kummerowia stipulacea Maxim.) planted into fescue (Festuca arundinacea Schreb.) while the agroforestry buffer area included Eastern cottonwood trees (Populus deltoids Bortr. ex Marsh.) planted into fescue. The APEX model was calibrated from 2002 to 2005 and was validated from 2006 to 2008. The r 2 and NSE values for the calibration and validation periods of the runoff varied from 0.52 to 0.78 and 0.50 to 0.74, respectively. The model did not predict sediment loss very well probably due to insufficient number of measured events and low measured sediment loss. The measured runoff was 57% higher for CW watersheds compared to AgB watersheds. The measured sediment loss was 95% higher for CW watersheds compared to AgB watersheds. After calibrating and validating the model, it was run for long-term scenario analyses for 10 years from 1999 to 2008. Simulated buffer width had a significant influence on runoff. Simulated runoff decreased by 24% when the buffer width was doubled compared to losses associated with the measured buffer width. Simulated runoff from the CW watersheds was 11% higher with double stocking density (relative to measured density) compared to AgB watersheds with double stocking density. With half stocking density (relative to measured density), the AgB watershed had 18% lower runoff compared to CW. Results from this study imply that establishment of agroforestry buffers on grazed pasture watersheds reduce runoff and sediment losses compared to control watersheds without buffers.

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The Potential of Vegetated Filter Strips to Reduce Pesticide Transport

Cited by 10 publications

References 0 publications

Effect of grasses on herbicide fate in the soil column: Infiltration of runoff, movement, and degradation

Effect of grasses on herbicide fate in the soil column: Infiltration of runoff, movement, and degradation

Atrazine Tolerance of Grass Species with Potential for Use in Vegetated Filters in Australia

APEX model simulation of runoff and sediment losses for grazed pasture watersheds with agroforestry buffers

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