Geochemical Processes and Controls Affecting Water Quality of the Karst Area of Big Creek near Mt. Judea, Arkansas

Brahana, Van; Nix, J.; Kuyper, Clark; Türk, Tuğba; Usrey, Faron D.; Hodges, Steven C.; Bitting, C.; Ficco, Katarina Kosič; Pollock, Erik D.; Quick, R.; Thompson, B.; Murdoch, J. F.

doi:10.54119/jaas.2016.7003

Cited by 2 publications

(1 citation statement)

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“…However, as results from such studies are site specific and karst geology is highly heterogeneous, extrapolation of findings from one area or holding pond to another area or pond can be unreliable. These concerns were voiced regarding the potential for slurry holding ponds in this karst landscape to be a source of nitrate and Escherichia coli to groundwaters, private wells, and the Buffalo River itself (Brahana et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Water quality adjacent to swine slurry holding ponds associated with a concentrated animal feeding operation

Sharpley¹,

Burke²,

Brye³

et al. 2022

Agrosystems Geosci & Env

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Environmental concerns exist over extended storage of liquid animal waste in outdoor holding ponds before land application, particularly in regions with underlying karst geology. To determine the effects of holding ponds on water quality, belowground interceptor trenches, groundwater (well), and a downslope ephemeral stream were monitored for water quality parameters. Nitrate-nitrogen concentrations increased (p < .0001) in well and ephemeral stream samples but decreased in trench samples (Trench 1 with a p < .0001) near the swine production facility and holding ponds over a 5-yr monitoring period (April 2014-June 2019). In contrast, chloride, which is a conservative element that can move freely through the soil without chemical, physical, or biological modification, and electrical conductivity decreased (p < .0001 to .0203) over the monitoring period in well and Trench 1 samples. Flow in the interceptor trenches was highly responsive to rainfall, suggesting the trenches were mainly capturing shallow subsurface flows initiated by rainfall. A lack of any increasing trend in chloride and electrical conductivity for ephemeral stream, well, or trench samples suggests that elevated nitrate-nitrogen concentrations in well and ephemeral stream samples may have been influenced by sources other than the liquid manure holding ponds (i.e., sources that have low chloride and electrical conductivity values). In regions with underlying karst geology, surface and subsurface water resources may require more expansive monitoring to demonstrate liquid manure holding ponds effects on nearby water quality.Abbreviations: CAFO, concentrated animal feeding operation; ICAP-AES, inductively coupled argon plasma-atomic emissions spectrometer.

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Section: Introductionmentioning

confidence: 99%

Water quality adjacent to swine slurry holding ponds associated with a concentrated animal feeding operation

Sharpley¹,

Burke²,

Brye³

et al. 2022

Agrosystems Geosci & Env

View full text Add to dashboard Cite

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Phosphorus runoff risk assessment in karstic regions of the United States

Sharpley

Hays

VanDevender

et al. 2020

Agricultural & Env Letters

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The Phosphorus (P) Index risk assessment tool has been widely adopted across the United States to identify and rank site vulnerability to P runoff as part of the Natural Resources Conservation Service nutrient management planning (NMP) process. However, limited success has been achieved in addressing the risk of P loss by subsurface flow pathways, despite its relative importance in certain areas of the United States, particularly in those U.S. states dominated by karst terrain. Here we review how states with varying land areas classified as having karst features address the risk of P runoff during the NMP process. Indices adopted in Illinois and Indiana require setbacks (widths 15–72 m) around surface karst features. The remaining states with karst address the risk of P loss in NMP development rather than the application of a P Index. Given the spatially variable hydrogeologic properties of karst, technically rigorous field‐scale factors are unlikely to be developed in the near future.

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Geochemical Processes and Controls Affecting Water Quality of the Karst Area of Big Creek near Mt. Judea, Arkansas

Cited by 2 publications

References 0 publications

Water quality adjacent to swine slurry holding ponds associated with a concentrated animal feeding operation

Water quality adjacent to swine slurry holding ponds associated with a concentrated animal feeding operation

Phosphorus runoff risk assessment in karstic regions of the United States

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