Vegetative buffer strips show limited effectiveness for reducing antibiotic transport in surface runoff

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dc.contributor.authorMoody, Adam H.en
dc.contributor.authorLerch, Robert N.en
dc.contributor.authorGoyne, Keith W.en
dc.contributor.authorAnderson, Stephen H.en
dc.contributor.authorMendoza-Cozatl, David G.en
dc.contributor.authorAlvarez, David A.en
dc.date.accessioned2023-04-11T16:56:09Zen
dc.date.available2023-04-11T16:56:09Zen
dc.date.issued2023-01en
dc.description.abstractVegetative buffer strips (VBS) have been demonstrated to effectively reduce loads of sediment, nutrients, and herbicides in surface runoff, but their effectiveness for reducing veterinary antibiotic (VA) loads in runoff has not been well documented. The objective of this study was to determine the effectiveness of VBS vegetation and width on surface runoff loads of the VAs sulfamethazine (SMZ) and lincomycin (LIN). Experimental design of the plots (1.5 x 25 m) was a two-way factorial with four vegetation treatments (tall fescue [Festuca aruninacea Schreb.]; tall fescue with switchgrass [Panicum virgatum L.] hedge; warm-season native grass mix; and continuous fallow control), and four buffer widths (0, 2, 5, and 9 m). Turkey litter spiked with SMZ and LIN was applied to the source area (upper 7 m) of each plot, and runoff was collected at each width. Runoff was generated with a rotating boom simulator. Results showed VA loads in runoff at the 0-m sampler ranged from 3.8 to 5.9% of applied, and overall VA transport in runoff was predominately in the dissolved phase (90% for SMZ and 99% for LIN). Among vegetation treatments, only tall fescue significantly reduced loads of SMZ and LIN compared with the control, with load reductions of similar to 30% for both VAs. Estimated field-scale reductions in VA loads showed that source-to-buffer area ratios (SBARs) of 10:1 to 20:1 reduced VA loads by only 7 to 16%. Overall, the grass VBS tested here were less effective at reducing SMZ and LIN loads in surface runoff than has been previously demonstrated for sediment, nutrients, and herbicides.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1002/jeq2.20441en
dc.identifier.eissn1537-2537en
dc.identifier.issue1en
dc.identifier.pmid36417934en
dc.identifier.urihttp://hdl.handle.net/10919/114469en
dc.identifier.volume52en
dc.language.isoenen
dc.publisherWileyen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectDissolved organic-matteren
dc.subjectveterinary antibioticsen
dc.subjectherbicide transporten
dc.subjectground-wateren
dc.subjectgrassen
dc.subjectsoilen
dc.subjectsorptionen
dc.subjectpharmaceuticalsen
dc.subjectagroforestryen
dc.subjectsulfamethazineen
dc.titleVegetative buffer strips show limited effectiveness for reducing antibiotic transport in surface runoffen
dc.title.serialJournal of Environmental Qualityen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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