Transport and fate of atrazine and lambda-cyhalothrin in an agricultural drainage ditch in the Mississippi Delta, USA

Moore, Matthew T.; Bennett, Erin R.; Cooper, Charles M.; Smith, S.; Shields, F. Douglas; Milam, C. D.; Farris, Jerry L.

doi:10.1016/s0167-8809(01)00148-7

Cited by 150 publications

(98 citation statements)

References 14 publications

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“…In several individual BLW studies, wetlands and vegetated drainage ditches were assessed for their ability to improve water quality in agricultural runoff via sediment entrapment and agrichemical (pesticide and nutrient) retention, degradation, and processing. Details of this methodology are published elsewhere (Moore et al 2001;Shankle et al 2004;Weaver et al 2004;Zablotowicz et al 2001).…”

Section: Methodsmentioning

confidence: 99%

“…Moore et al (2001) evaluated the potential of a 50-m (54.7-yd) segment of an agricultural drainage ditch in BLW to mitigate movement of atrazine and lambda-cyhalothrin in a simulated storm runoff event. One hour following initiation of simulated runoff, 37% and 2% of the atrazine concentrations measured in the ditch were associated with water and sediment, respectively, while respective percentages of lambda-cyhalothrin were 12% and 1%.…”

Section: Figurementioning

confidence: 99%

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Environmental quality research in the Beasley Lake watershed, 1995 to 2007: Succession from conventional to conservation practices

Yuan¹

2008

Journal of Soil and Water Conservation

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Abstract:The Beasley Lake watershed (BLW), established for the Mississippi Delta Management Systems Evaluation Area project, represents the US Mississippi Delta region in the national Conservation Effects Assessment Project. The 915-ha (2,260-ac) BLW drains into an oxbow lake that has been monitored since 1995 when row crops were grown on 79% of the area, and the remaining area included a 25-ha (62-ac) lake and a 135-ha (330-ac) riparian forest. Currently, row crops account for 66.5% of the area with 12.4% enrolled in the Conservation Reserve Program. Cotton (Gossypium hirsutum L.) acreage has decreased from 63.3% to 8.9%. Historical and current research in BLW focuses on monitoring lake limnology, evaluating conservation practice effects on edge-of-field runoff, quantifying changes associated with the Conservation Reserve Program, and modeling watershed responses. Applying combinations of conservation practices can significantly reduce nonpoint source pollution. For example, converting row crops to reduced tillage and transgenic herbicide-resistant crops in BLW reduced suspended sediment (70% reduction), total phosphorus (41% reduction), and pesticide concentrations in lake water. Corresponding increases in Secchi visibility (97%) and chlorophyll a (a primary productivity indicator) likely contributed to improved fish productivity (e.g., fish weight increase comparing 1998 and 2004: Micropterus salmoides 87%, Lepomis macrochirus, 65%) during this period. Additional studies should quantify effects of individual practices and improve modeling tools for making better management decisions. The utilization of the Annualized Agricultural Non-Point Source (AnnAGNPS) model and the Riparian Ecosystem Management Model (REMM) together provides additional information on the effectiveness of conservation practices within the watershed by combining technology that assesses riparian buffer effectiveness in filtering nutrients at the field scale with the watershed water quality transport capabilities of the AnnAGNPS model.

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Section: Methodsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Environmental quality research in the Beasley Lake watershed, 1995 to 2007: Succession from conventional to conservation practices

Yuan¹

2008

Journal of Soil and Water Conservation

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“…Susarla et al (2002) noted plants' abilities to modify certain conditions of their environment as well as their unique enzymatic systems as two potential reasons for the success of phytoremediation. Constructed wetlands, which utilize manipulations of hydroperiod, hydric soils, and aquatic vegetation, have been shown to be effective in removing pesticides from runoff water (Wolverton and Harrison 1973;Gilliam 1994;Moore et al 2000Moore et al , 2001aMoore et al , 2002Moore et al , 2006. In addition to constructed wetland research, recent studies have examined the use of vegetated agricultural drainage ditches for their potential in pesticide mitigation.…”

mentioning

confidence: 99%

Ability of Four Emergent Macrophytes to Remediate Permethrin in Mesocosm Experiments

Moore

Kröger

Cooper

et al. 2009

Arch Environ Contam Toxicol

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Increased focus is being placed on the ability of native vegetation to mitigate potential harmful effects of agricultural runoff, especially pyrethroid insecticides. Replicate 379 L Rubbermaid tubs (1.25 m [l] 9 0.6 m [w] 9 0.8 m [h]) were planted with individual species of cutgrass (Leersia oryzoides), cattails (Typha latifolia), burreed (Sparganium americanum), and powdery alligator-flag (Thalia dealbata), all common wetland macrophytes found in the Mississippi Delta, USA, agricultural region. Permethrin-enriched water (target concentration, 5 lg L -1 ) was pumped in at a 4-h hydraulic retention time at one end of the tub and discharged at the far end. Water samples were collected from discharge at 1-h intervals for 12 h and analyzed for permethrin concentrations. Permethrin removal rates were compared for the four different plant treatments and nonvegetated sediment-water controls. Results indicated that no particular single plant species was more effective at removing permethrin in water relative to unplanted controls. Overall mass reductions (from inflow to outflow) for cis-permethrin ranged from 67% ± 6% in T. latifolia to 71% ± 2% in L. oryzoides. The trans-permethrin overall mass reductions ranged from 76% ± 4% in S. americanum to 82% ± 2% in the unplanted control. Sediment and plant samples collected at the study conclusion indicated that 77%-95% of measured permethrin mass was associated with sediment for mesocosms planted with L. oryzoides, T. latifolia, and T. dealbata. Conversely, mesocosms planted with S. americanum had 83% of measured mass associated with the plant material. Specific plant-pesticide retention studies can lead to improved planning for best management practices and remediation techniques such as constructed wetlands and vegetated agricultural drainage ditches.

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“…Herbicide concentrations were decreased 22% to 32% by the same wetland in a later study with a simulated runoff event . If wetland installation is not practical, vegetated drainage ditches can provide effective mitigation for pesticides and nutrients (Moore et al 2001(Moore et al , 2010Ahiablame et al 2011). This research has considered effects of ditch maintenance on contaminant mitigation (Smith et al 2006).…”

Section: Summary Of Progressmentioning

confidence: 99%

A decade of conservation effects assessment research by the USDA Agricultural Research Service: Progress overview and future outlook

Tomer¹,

Sadler²,

Lizotte³

et al. 2014

Journal of Soil and Water Conservation

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Transport and fate of atrazine and lambda-cyhalothrin in an agricultural drainage ditch in the Mississippi Delta, USA

Cited by 150 publications

References 14 publications

Environmental quality research in the Beasley Lake watershed, 1995 to 2007: Succession from conventional to conservation practices

Environmental quality research in the Beasley Lake watershed, 1995 to 2007: Succession from conventional to conservation practices

Ability of Four Emergent Macrophytes to Remediate Permethrin in Mesocosm Experiments

A decade of conservation effects assessment research by the USDA Agricultural Research Service: Progress overview and future outlook

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