Comparison of export dynamics of nutrients and animal-borne estrogens from a tile-drained Midwestern agroecosystem

Gall, Heather E.; Sassman, Stephen A.; Jenkinson, Byron; Lee, Linda; Jafvert, Chad T.

doi:10.1016/j.watres.2014.08.041

Cited by 26 publications

(14 citation statements)

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“…Results showed weak linear associations (R 2 <0.08) between nitrate concentration and flow depth for all three sites. These results are similar to those of previous studies for subsurface drainage water[41,49,67,68]. Although Tiemeyer et al[66] reported a good linear relationship between daily nitrate concentration and flow depth (i.e., R-square of 0.60 and 0.42 for two consecutive years) for a subsurface-drained plot in Germany, they did not account for serial correlation.…”

Section: Resultssupporting

confidence: 89%

“…Other studies have reported slopes ( b ranging from 0.99 to 1.26), R-squares and/or p -values for daily nitrate load in subsurface drainage water[49,66–68], but they did not account for serial correlation. The presence of serial correlation, results in inaccurate significance tests and R-square values[26].…”

Section: Resultsmentioning

confidence: 99%

“…These results show the importance of peak flows in transporting TP from subsurface-drained fields. Gall et al[68] also noted the importance of large flow events in transporting nutrients from subsurface-drained agricultural fields.…”

Section: Resultsmentioning

confidence: 99%

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Comparison of Contaminant Transport in Agricultural Drainage Water and Urban Stormwater Runoff

et al. 2016

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Transport of nitrogen and phosphorus from agricultural and urban landscapes to surface water bodies can cause adverse environmental impacts. The main objective of this long-term study was to quantify and compare contaminant transport in agricultural drainage water and urban stormwater runoff. We measured flow rate and contaminant concentration in stormwater runoff from Willmar, Minnesota, USA, and in drainage water from subsurface-drained fields with surface inlets, namely, Unfertilized and Fertilized Fields. Commercial fertilizer and turkey litter manure were applied to the Fertilized Field based on agronomic requirements. Results showed that the City Stormwater transported significantly higher loads per unit area of ammonium, total suspended solids (TSS), and total phosphorus (TP) than the Fertilized Field, but nitrate load was significantly lower. Nitrate load transport in drainage water from the Unfertilized Field was 58% of that from the Fertilized Field. Linear regression analysis indicated that a 1% increase in flow depth resulted in a 1.05% increase of TSS load from the City Stormwater, a 1.07% increase in nitrate load from the Fertilized Field, and a 1.11% increase in TP load from the Fertilized Field. This indicates an increase in concentration with a rise in flow depth, revealing that concentration variation was a significant factor influencing the dynamics of load transport. Further regression analysis showed the importance of targeting high flows to reduce contaminant transport. In conclusion, for watersheds similar to this one, management practices should be directed to load reduction of ammonium and TSS from urban areas, and nitrate from cropland while TP should be a target for both.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

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Comparison of Contaminant Transport in Agricultural Drainage Water and Urban Stormwater Runoff

et al. 2016

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“…A total of 10 rainfall and/or snowmelt events generated surface runoff during the study period of October 2014 through June 2015. This study period duration is similar to or longer than most estrogen field studies, which are generally on the order of months (Dutta et al, 2010(Dutta et al, , 2012Gall et al, 2014Gall et al, , 2015Gall et al, , 2011Kjaer et al, 2007;Shappell et al, 2010Shappell et al, , 2016.…”

Section: Sampling and Analysismentioning

confidence: 94%

“…On an annual basis, land application of manure is estimated to introduce more than 200 times the mass of estrogens introduced from biosolids applications (Lange et al, 2002;USEPA, 1999). Various studies have reported estrogens in surface runoff and tile drainage after land application of manure (Dutta et al, 2010(Dutta et al, , 2012Finlay-Moore et al, 2000;Gadd et al, 2010;Gall et al, 2015;Kjaer et al, 2007;Shappell et al, 2016;Snow et al, 2015), with some concentrations exceeding the lowest observable effect levels (LOELs) for fish and other aquatic organisms (Leet et al, 2011;Shull and Pulket, 2015).Soil physical properties of the mid-Atlantic and northeastern United States, typically shallow and stony, have limited the adoption of newer methods of manure application and the use of deeper injection tools due to severe soil disturbance, horsepower requirements, and the increase in frequency of maintenance ( Johnson et al, 2011). More recently, however, shallow disk injection of manure has been found to be less susceptible to failure compared with deep injection systems (Dou et al, 2001) because shallow disk injection requires little contact between the injection system and the soil matrix, with disks only penetrating the soil a few centimeters.…”

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confidence: 99%

Estrogen Transport in Surface Runoff from Agricultural Fields Treated with Two Application Methods of Dairy Manure

et al. 2016

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This study compares two methods of dairy manure applicationsurface broadcast and shallow disk injection-on the fate and transport of natural estrogens in surface runoff from 12 field plots in central Pennsylvania. Ten natural surface runoff events were sampled over a 9-mo period after fall manure application. Results show that the range of estrogen concentrations observed in surface runoff from the broadcast plots was several orders of magnitude higher (>5000 ng L −1 ) than the concentrations in runoff from the shallow disk injection plots (<10 ng L −1 ). Additionally, the transport dynamics differed, with the majority of the estrogen loads from the surface broadcast plots occurring during the first rainfall event after application, whereas the majority of the loads from the shallow disk injection plots occurred more than 6 mo later during a hail storm event. Total estrogen loads were, on average, two orders of magnitude lower for shallow disk injection compared with surface broadcast. Independent of the method of manure application, 17a-estradiol and estrone were preserved in the field for as long as 9 mo after application. Overall, injection of manure shows promise in reducing the potential for off-site losses of hormones from manure-amended soils. Estrogen Transport in Surface Runoff from Agricultural Fields Treated with Two Application Methods of Dairy ManureOdette Mina, Heather E. Gall,* Louis S. Saporito, and Peter J.A. Kleinman L ivestock production is increasingly tied to water quality concerns, in part due to the management of manure on farms. In a National Water Quality Inventory, the USEPA assessed approximately 33% of US waters. Of the assessed waters, runoff from agricultural lands was reported as a primary source of impairment for approximately 40% of streams, 45% of lakes, and 50% of estuaries (USEPA, 2000). In the United States, farm animals produce over 300 million t of manure each year, with the manure often applied to agricultural fields as a nutrient source (USDA, 2008). Reuse is known to contribute to water quality concerns, including transport of estrogens to the aquatic environment. On an annual basis, land application of manure is estimated to introduce more than 200 times the mass of estrogens introduced from biosolids applications (Lange et al., 2002;USEPA, 1999). Various studies have reported estrogens in surface runoff and tile drainage after land application of manure (Dutta et al., 2010(Dutta et al., , 2012Finlay-Moore et al., 2000;Gadd et al., 2010;Gall et al., 2015;Kjaer et al., 2007;Shappell et al., 2016;Snow et al., 2015), with some concentrations exceeding the lowest observable effect levels (LOELs) for fish and other aquatic organisms (Leet et al., 2011;Shull and Pulket, 2015).Soil physical properties of the mid-Atlantic and northeastern United States, typically shallow and stony, have limited the adoption of newer methods of manure application and the use of deeper injection tools due to severe soil disturbance, horsepower requirements, and the increase in frequency o...

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Assessing the impacts of anthropogenic and hydro-climatic drivers on estrogen legacies and trajectories

Gall

Basu

Mashtare

et al. 2016

Advances in Water Resources

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Comparison of export dynamics of nutrients and animal-borne estrogens from a tile-drained Midwestern agroecosystem

Cited by 26 publications

References 58 publications

Comparison of Contaminant Transport in Agricultural Drainage Water and Urban Stormwater Runoff

Comparison of Contaminant Transport in Agricultural Drainage Water and Urban Stormwater Runoff

Estrogen Transport in Surface Runoff from Agricultural Fields Treated with Two Application Methods of Dairy Manure

Assessing the impacts of anthropogenic and hydro-climatic drivers on estrogen legacies and trajectories

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