Mississippi State University

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BMP evaluations in Wolf Lake


Robert Kröger,Dan Prevost

Graduate Student(s):  Alex Littlejohn

The work described in this MOA between the Department of Wildlife, Fisheries, and Aquaculture and Delta F.A.R.M is being carried out in conjunction with the implementation of Best Management Practices (BMP) in the Wolf and Broad Lake watershed. This data collection and evaluation effort is focused at evaluating two types of BMP structures within the Wolf and Broad lake watershed that have the ability to reduce nutrient concentrations. These structures are one edge of field structure, a slotted pipe, and a single primary aquatic system drainage structure, low grade weirs. Depending on the structure and placement within the landscape evaluation will take occur for: sediments, nutrients and hydrology. These evaluations will be compared to control systems, within the watershed as well as within an independent control watershed where no BMP practice has occurred, to evaluate the differences in sediment and nutrient concentrations and loads as well as how structures influence the hydrology of each respective system.

This project was implemented in September of 2009, and though funding for the project is completed in July 31, 2010, this project will continue to evaluate the long term nutrient reductions, sediment accumulations and calculated loads moving through the respective systems. This project is yielding promising results in terms of sediment accumulation rates, nutrient reduction efficiencies of BMPs and overall indications to overall improvement of downstream systems through active management of BMPs.

Outputs

  • Kröger, R., E.J. Dunne, J. Novak, K.W. King, E. McLellan, D.R. Smith, J. Strock, K. Boomer, M. Tomer, G.B. Noe. 2012. Downstream approaches to phosphorus management in agricultural landscapes: regional applicability and use. In Review—Science of the Total Environment
  • Kröger, R., K.A. Littlejohn, S.C. Pierce, J. Henderson, J. Brandt, C. Flora, B.H. Poganski, J.D. Prevost. 2012. Evidence towards sediment accumulation characteristics of slotted pipes as best management practices on agricultural landscapes. In Review—Ecological Engineering.
  • Pierce, S.C., R. Kröger, S.R. Pezeskhi. 2012. Managing for biodiversity and nutrient mitigation in lowland agricultural headwaters. In Review—Biology
  • King, K., R. Kröger, D.R. Smith. 2011. A quick tour of filter practices: Ditches. Managing phosphorus in agricultural landscapes—the role of aquatic systems. Environmental Defense Fund workshop, Washington, DC. July 2011. (Invited)
  • Lizotte Jr., R.E., F.D. Shields Jr., J.N. Murdock, R. Kröger, S.S. Knight. 2011. Mitigating water quality impacts of agricultural runoff using a managed riverine wetland. In review—Science of the Total Environment
  • Novak, J., R. Kröger. 2011. Managing P in agricultural landscapes: the role of aquatic ecosystems. Workshop on Managing P in agricultural landscapes. Environmental Defense Fund, Washington, DC. July 2011. (Invited)
  • Usborne, E., K.A. Littlejohn, S.C. Pierce, R. Kröger. 2011. Nutrient reduction capabilities of agricultural drainage ditch wetlands: creation and policy implications, pp. In: Wetlands: Ecology, Management and Conservation. Nova Publishers, New York, NY. In review
  • Kröger, R., J.D. Prevost. 2010. What do we know about field scale nutrient reductions of instream practices in the Mississippi Delta? Mississippi Water Resources Research Institute Annual Meeting, Bay St Louis, MS.

Gulf of Mexico Research

Completed Projects