Faculty Directory

Brian Haggard

Brian Haggard

Director, Arkansas Water Resources Center

Professor, Biological Engineering Program

(DREX)-Director Experiment Station

(BAEG)-Biological and Agricultural Engineering

Phone: 479-575-2879

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Research Focus

  • Database Analysis
  • Water Quality Monitoring
  • Constituent Load Estimation
  • Water Quality Trends
  • Constituent Transport and Dynamics in Stormwater and Aquatic Systems
  • Phosphorus Chemistry in Residuals, Fertilizers, Sediments and Soils

Application Areas

  • Nutrient Criteria Development
  • Water Resources Management
  • Watershed Management
  • Agricultural and Urban Best Management Practices and Efficiencies
  • Information Transfer and Conference Planning
  • B.S. University of Missouri – Rolla Life Sciences 1994
  • M.S. University of Arkansas Environmental Soil and Water Science 1997
  • Ph.D. Oklahoma State University Biosystems Engineering 2000

Haggard, B.E., Stanley, E.H., and Hyler, R. 1999. Sediment-phosphorus relationships in three north central Oklahoma streams. Transactions of American Society of Agricultural Engineers 42(6):1709-1714.

Haggard, B.E., Storm, D.E., Tejral, R.D., Popova, Y.A., Keyworth, V.G., and Stanley, E.H. 2001. Stream nutrient retention in three northeastern Oklahoma agricultural catchments. Transactions of the American Society of Agricultural Engineers 44(3):597-605.

Haggard, B.E., Storm, D.E., and Stanley, E.H. 2001. Effect of a point source input on stream nutrient retention. Journal of American Water Resources Association 37:1291-1299.

Haggard, B.E., and Storm, D.E. 2003. Effect of leaf litter on phosphorus retention and hydrologic properties at a first order stream in northeast Oklahoma, USA. Journal of Freshwater Ecology 18(4):557-565.

Haggard, B.E., Moore, Jr. P.A., Chaubey, I., and Stanley, E.H. 2003. Nitrogen and phosphorus concentrations and export in an Ozark Plateaus catchment in the United States. Biosystems Engineering 86(1):75-85.

Haggard, B.E., Soerens, T.S., Green, W.R., and Richards, R.P. 2003. Using regression methods to estimating stream phosphorus loads at the Illinois River, Arkansas. Applied Engineering in Agriculture 19(2):187-194.

Smith, D.R., Moore Jr. P.A., Haggard, B.E., Maxwell, C.V., Daniel, T.C., Van Devander, K., and Davis, M.E. 2003. Impact of aluminum chloride and dietary phytase on relative ammonia losses from swine manure. Journal of Animal Science 82:605-611.

DeLaune, P.B., Moore, Jr. P.A., Carman, D.K., Sharpley, A.N., Haggard, B.E., and Daniel, T.C. 2004. Development of a phosphorus index for pastures fertilized with poultry litter – factors affecting phosphorus runoff.  Journal of Environmental Quality 33(6):2183-2191.

DeLaune, P.B., Moore, Jr. P.A., Carman, D.K., Sharpley, A.N., Haggard, B.E., and Daniel, T.C. 2004. Evaluation of the phosphorus source component in the phosphorus index for pastures.  Journal of Environmental Quality 33(6):2192-2200.

Haggard, B.E., Ekka, S.A., Matlock, M.D., and Chaubey, I. 2004. Phosphate equilibrium between stream sediments and water: potential effects of chemical amendments. Transactions of the American Society of Agricultural Engineers 47(4):1113-1118.

Harmel, R.D., Torbert, H.A., Haggard, B.E., Haney, R, and Dozier, M. 2004. Water Quality Impacts of Converting to a Poultry Litter Fertilization Strategy. Journal of Environmental Quality 33(6):2229-2242.

Smith, D.R., Moore, Jr. P.A., Maxwell, C.V., Haggard, B.E., and Daniel, T.C. 2004. Reducing phosphorus runoff from swine manure with dietary phytase and aluminum chloride. Journal of Environmental Quality 33(3):1048-1054.

Smith, D.R., Moore, Jr. P.A., Miles, D.M., Haggard, B.E., and Daniel, T.C.  2004. Reducing phosphorus runoff from land applied poultry litter with dietary modifications and alum addition.  Journal of Environmental Quality 33(6):2210-2216.

White, K.L., Haggard, B.E., and Chaubey, I. 2004. Water quality at the Buffalo National River, 1991-2001. Transactions of the American Society of Agricultural Engineers 47(2):407-417.

Haggard, B.E., DeLaune, P.B., Smith, D.R., and Moore P.A. Jr. 2005. Nutrient and b17-estradiol loss in runoff water from various poultry litters. Journal of the American Water Resources Association 41(2):245-256.

Haggard, B.E., Moore, P.A. Jr., and Brye, K.R. 2005. Effect of slope on runoff from a small variable slope box-plot. Journal of Environmental Hydrology 13: Paper 25.

Haggard, B.E., Moore, P.A. Jr., and P.B. DeLaune. 2005. Phosphorus flux from reservoir bottom sediments in Lake Eucha, Oklahoma. Journal of Environmental Quality 34:724-728.

Haggard, B.E., Stanley, E.H., and Storm, D.E. 2005. Nutrient retention in a point source enriched stream. Journal of the North American Benthological Society 24:29-47.

Haggard, B.E., Vadas, P.A., Smith, D.R., DeLaune, P.B., and Moore, P.A. Jr. 2005. Effect of poultry litter to water ratios on extractable phosphorus content and its relation with runoff phosphorus concentrations. Biosystems Engineering 92(3): 409-417.

Harmel, R.D., Torbert, H.A., DeLaune, P.B., Haggard, B.E., and Haney, R. 2005. Field Evaluation of Three Phosphorus Indices on New Application Sites in Texas. Journal of Soil and Water Conservation 60:29-42.

Smith, D.R., Haggard, B.E., Warnemuede, E.A., and Huang, C. 2005. Sediment phosphorus dynamics for three tile fed drainage ditches in northeast Indiana. Agricultural Water Management 71(1):19-32.

Vadas, P.A., Haggard, B.E., and Gburek, W.J. 2005. Predicting dissolved phosphorus in runoff from manured field–plots.  Journal of Environmental Quality 34:1347-1353.

White, K.L., Haggard, B.E., Matlock, M.D., and Kim, J-W. 2005. Periphytic chlorophyll a response to Triclosan: application of a passive diffusion periphytometer. Applied Engineering in Agriculture 21(2):307-311.

DeLaune, P.B., Haggard, B.E., Daniel, T.C., Chaubey, I., and Cochran, M.C. 2006. The Eucha/Spavinaw Phosphorus Index: A Court Mandated Index for Litter Management. Journal of Soil and Water Conservation 61(2):96-105.

Ekka, S.A., Haggard, B.E., Matlock, M.D., and Chaubey, I. 2006. Dissolved phosphorus concentrations and sediment-interactions in effluent dominated Ozark streams. Ecological Engineering 26(4):375-391.

Haggard, B.E., Galloway, J.M., W.R. Green, and M.T. Meyers. 2006. Pharmaceuticals and other organic chemicals in selected north-central and northwest Arkansas streams. Journal of Environmental Quality 35: 1078-1087.

Haggard, B.E., and Soerens, T.S. 2006. Sediment phosphorus release at a small impoundment on the Illinois River, Arkansas and Oklahoma, USA. Ecological Engineering 28(3): 280-287.

Harmel, R.D., King, K.W., Haggard, B.E., Wren, D.G., and J.M. Sheridan. 2006. Practical guidance for discharge and water quality data collection on small watersheds. Transactions of the American Society of Agricultural and Biological Engineers 49(4): 937-948.

Pirani, M., Brye, K.R., Daniel, T.C., Haggard, B.E., Gbur, E., and Mattice, J. 2006. Soluble metal leaching from a poultry litter–amended Udult under pasture vegetation. Vadose Zone Journal 5: 1017-1034.

Popova, Y.A., Keyworth, V.G., Haggard, B.E., Storm, D.E., R.A. Lynch, and M.E. Payton. 2006. Stream nutrient limitation and sediment interactions in the Eucha–Spavinaw Basin, USA. Journal of Soil and Water Conservation 61(2): 105-115.

Smith, D.R., Warnemuende, E.A., Haggard, B.E., and Huang, C. 2006. Changes in sediment–water column phosphorus interactions following sediment disturbance. Ecological Engineering 27(1): 71-78.

Smith, D.R., Warnemuende, E.A., Haggard, B.E., and Huang, C. 2006. Dredging of drainage ditches increases short–term transport of soluble phosphorus. Journal of Environmental Quality 35: 611-616.

Chaubey, I., Sahoo, D., Haggard, B.E., Matlock, M.D., and Costello, T.A. 2007. Nutrient–retention, nutrient–limitation, and sediment–nutrient interactions in a pasture dominated stream. Transactions of the American Society of Agricultural and Biological Engineers 50(1): 35-44.

Haggard, B.E., Smith, D.R. and Brye, K.R. 2007. Variations in stream water and sediment phosphorus among select Ozark catchments. Journal of Environmental Quality 36: 1725-1734.

Migliaccio, K.W., Chaubey, I, and Haggard, B.E. 2007. Evaluation of landscape and instream modeling to predict watershed nutrient yields. Environmental Modelling and Software 22: 987-999.

Migliaccio, K.W., Haggard, B.E., Chaubey, I., and Matlock, M.D. 2007. Linking watershed subbasin characteristics to water quality parameters in War Eagle Creek Watershed. Transactions American Society of Agricultural and Biological Engineers 50(6): 2007-2016.

Pirani, A.L., Brye, K.R., Haggard, B.E., Daniel, T.C. and Mattice, J.D. 2007. Broiler litter rate effects on nutrient leaching from soil under pasture vegetation in the Ozark Highlands. Soil Science 172: 1001-1018.

Sen, S., Haggard, B.E., Chaubey I., Brye, K.R., Costello, T.A., and Matlock, M.D. 2007. Sediment phosphorus release at Beaver Reservoir, Northwest Arkansas, 2002-3. Water, Air and Soil Pollution 179: 67-77.

Sharpley, A.N., Krogstad, T., Kleinman, P.J.A., Haggard, B.E., Shigaki, F, and Saporito, L. 2007. Managing natural processes in drainage ditches for nonpoint source phosphorus control. Journal of Soil and Water Conservation 62(4): 197-206.

Toor, G.S., Haggard, B.E., and Donoghue, A.M. 2007. Water extractable trace elements in poultry litter and granulated products.  Journal of Applied Poultry Research 16: 351-360.

Toor, G.S., Haggard, B.E., Reiter, M.S., Daniel, T.C., and Donoghue, A.M. 2007. Phosphorus solubility in poultry litter and granules. Transactions of the American Society of Agricultural and Biological Engineers. 50(2): 533-542.

Harper, T.W., Brye, K.R., Daniel, T.C., Slaton, N.A., and Haggard, B.E. 2008. Land use effects on runoff and water quality on an Eastern Arkansas soil under simulated rainfall.  Journal of Sustainable Agriculture 32(2): 231-253.

Leh, M., Chaubey, I., Brahana, J.V., and Haggard, B.E. 2008. Delineating runoff processes and critical runoff source areas in a pasture watershed of the Ozark Highlands. Hydrological Processes 22: 4190-4204.

Ludwig, A., Matlock, M., Haggard, B.E., M. Matlock, and Cummings E. 2008. Identification and evaluation of nutrient limitation on periphyton growth in headwater streams in the Pawnee Nation, Oklahoma. Ecological Engineering 32: 178-186.

Toor, G.S., Harmel, R.D., Haggard, B.E., and Schmidt, G. 2008. Regression methodology with low-frequency water quality sampling to estimate constituent loads for ephemeral watersheds. Journal of Environmental Quality 37:1847-1854.

Haggard, B.E., and Bartsch, L.D. 2009. Net changes in antibiotic concentrations downstream from an effluent discharge. Journal of Environmental Quality 38: 343-352.

Longing, S.D., and Haggard, B.E. 2009. Updated distribution of an endemic diving beetle, Heterosternuta sulphuria (Coleoptera: Dytiscidae: Hydroporinae) in Arkansas with comments on habitat and conservation. The Southwestern Naturalist 54(3):359–363.

Maguire, R.O., Rubæk, G.H., Haggard, B.E., and Foy, B.H. 2009. Critical evaluation of the implementation of mitigation options for phosphorus from field to catchment scales. Journal of Environmental Quality 38:1989-1997.

Menjoulet, B.C., Brye, K.R., Pirani, A.L., Haggard, B.E., and Gbur, E.E. 2009. Runoff water quality from broiler-litter-amended tall fescue in response to natural precipitation in the Ozarks Highlands.  Journal of Environmental Quality 38:1005-1017.

Toor, G.S. and Haggard, B.E. 2009. Phosphorus and trace metal dynamics in soils amended with poultry litters and granulates. Soil Use and Management 25:409-418.

Haggard, B.E. 2010. Phosphorus concentrations, loads and sources at the Illinois River, Arkansas, 1997–2008. Journal of Environmental Quality 39:2113-2120

He, Z., Zhang, H., Toor, G.S., Dou, Z., Honeycutt, C.W., Haggard, B.E., and Reiter, M.S. 2010. Phosphorus distribution in sequentially-extracted fractions of biosolids, poultry litter and granulated products. Soil Science 175(4):154-161.

Longing, S.D., and Haggard, B.E. 2010. Distributions of median nutrient and chlorophyll concentrations across the Red River Basin, USA, 1996–2006: Facilitating nutrient criteria development. Journal of Environmental Quality 39:1966-1974.

Longing, S.D., and Haggard, B.E. 2010. Biological assessment to support ecological recovery of a degraded headwater system. Environmental Monitoring 46:459-470.

Massey, L.B., Haggard, B.E., Galloway, J.M., Loftin, K.A., Meyer, M.T., and Green, W.R. 2010. Antibiotic fate and transport in three effluent-dominated Ozark streams. Ecological Engineering 36:930-938.

Brion, G., Brye, K.R., Haggard, B.E., West, C., and Brahana, V. 2011. Land-use effects on water quality of a first-order stream in the Ozark Highlands, Mid-Southern United States. River Research and Applications 27:772-790.

David, M.M., and Haggard, B.E. 2011. Development of regression-based models to predict fecal bacteria numbers at select sites within the Illinois River Watershed, Arkansas and Oklahoma, USA. Water, Air and Soil Pollution 215:525-547.

Huffhines, B., Brye, K.R., Haggard, B.E., and Morgan, R.A. 2011. Net nutrient uptake in the White River, Northwest Arkansas, downstream of a municipal wastewater treatment plant. Journal of Environmental Protection 2:255-270.

Rogers, C.W., Sharpley, A.N., Haggard, B.E., Scott, J.T., and Drake, W.M. 2011. Physico-chemical characterization of sediment in northwest Arkansas streams. Journal of Environmental Protection 2:629-638.

Scott, J.T., Haggard, B.E., Sharpley, A.N., and Romeis, J.J. 2011. Long-term phosphorus trends are correlated with changes in water quality monitoring and watershed management. Journal of Environmental Quality 40(4):1249-1256.

Drake, W.M., Scott, J.T., Evans-White, M., Haggard, B.E., Sharpley, A.N., Rogers, C.W., and Grantz, E.M. 2012. The effect of periphyton stoichiometry and light on biological phosphorus immobilization and release in streams. 13:97-106

Haggard, B.E., Scott, J.T., and Patterson, S. 2012. Sediment phosphorus flux in an Oklahoma reservoir suggests reconsideration of watershed management planning. Lake and Reservoir Management 28(1):59-69.

Jarvie, H.P., Sharpley, A.N., Scott, J.T., Haggard, B.E., Bowes, M.J., and Massey, L.B. 2012. Within-river phosphorus retention: a missing piece in the watershed puzzle? Environmental Science and Technology 46:13284-13292.

Ludwig, A., Matlock, M., Haggard, B., and Chaubey, I. 2012. Periphyton nutrient limitation and maximum potential productivity in the Beaver Lake basin, United States. Journal of the American Water Resources Association 48(5):896-908.

Toland, D.C., Haggard, B.E., and Boyer, M.E. 2012. Evaluation of nutrient concentrations in runoff water from green roofs, conventional roofs, and urban streams. Transactions of the American Society of Agricultural and Biological Engineers 55(1):99-106.

Evans-White, M.A., Haggard, B.E., and Scott, J.T. 2013. A review of stream nutrient criteria development in the United States. Journal of Environmental Quality 42(4):1002-1014.

Giovannetti, J., Massey, L.B., Haggard, B.E., and R.A. Morgan. 2013. Land use effects on stream nutrients at Beaver Lake Watershed, northwest Arkansas. Journal of the American Water Works Association 105(1):E1-E10.

Haggard, B.E., Scott, J.T., and S.D. Longing. 2013. Sestonic chlorophyll-a shows hierarchical structure and thresholds with nutrients across the Red River Basin, USA. Journal of Environmental Quality 42(2):437-445.

Jarvie, H.P., Sharpley, A.N., Withers, P.J.A., Scott, J.T., Haggard, B.E., and Neal, C. 2013. Phosphorus mitigation to control river eutrophication: murky waters, inconvenient truths, and ‘post-normal’ science. Journal of Environmental Quality 42(2):295-304.

Rogers, C.W., Sharpley, A.N., Haggard, B.E., and Scott, J.T. 2013. Phosphorus uptake and release from submerged sediments in a simulated stream channel inundated with a poultry litter source. Air, Water and Soil Pollution 224:1361 (9 pages)

Grantz, E.M., B.E. Haggard, and J.T. Scott. 2014. Stoichiometric imbalance in rates of nitrogen and phosphorus retention, storage, and recycling can perpetuate nitrogen deficiency in highly productive reservoirs. Limnology and Oceanography 59(6): 2203-2216.

Jarvie, H.P., Sharpley, A.N., Brahana, V. Simmons, T., Price, A. Neal, C. Lawlor, A.J., Sleep, D. Thacker, S., and Haggard, B.E. 2014. Phosphorus retention and remobilization along hydrological pathways in karst terrain.  Environmental Science and Technology 48(9): 4860-4868.

Toland, D.C., Boyer, M.E., McDonald, G.V., West, C.P., and Haggard, B.E. 2014. Plants influenced by growing media and compost addition on mock green roofs within the Ozark Highlands. Journal of Green Building 9(1):130-144.

White, M.J., Storm, D.E., Mittelstet, A., Busteed, P.R., Haggard, B.E., and Rossi, C. 2014. Development and testing of an in-stream phosphorus cycling model for the Soil and Water Assessment Tool. Journal of Environmental Quality 43:215-223.

Scott, J.T. and B.E. Haggard. 2015. Implementing effects-based water quality criteria for eutrophication in reservoirs: linking standard development and assessment methodology. Journal of Environmental Quality 44:1503-1512

Johnston, R., H.N. Sandefur, P. Bandekar, M. Matlock, B. Haggard and G. Thoma.  2015. Predicting changes in yield and water use in the production of corn under climate change scenarios. Ecological Engineering 82: 555-565

Johnson, T., L. Edgar, B. Haggard, and K. Rucker. 2015. Student Perceptions of the Arkansas Water Resources Center, Water Resources and Water Issues. Natural Sciences Education 44:136-142

McCarty, J.A., B.E. Haggard, M.D. Matlock, N. Pai, and D. Saraswat. 2016. Post-model validation of a deterministic water model using measured data. Transactions ASABE 59(2):497-508

McCarty, J.A., and B.E. Haggard. 2016. Can we manage nonpoint source pollution using nutrient concentrations during seasonal baseflow?  Agricultural and Environmental Letters 1:160015

Reavis, M.A. and B.E. Haggard. 2016. Are floodplain soils a potential phosphorus source when inundated that can be effectively managed? Agricultural and Environmental Letters 1:160036

Austin, B.J., E. Scott, others, and B.E. Haggard. 2017. Unconventional natural gas development did not result in detectable changes in water chemistry (within the South Fork Little Red River). Environmental Monitoring and Assessment 189:209-222

Brennon, R., A. Sharpley, others, and B.E. Haggard. 2017. Linking soil erosion to instream dissolved P cycling and periphyton growth. Journal of the American Water Resources Association 53(4):809-821

Heeren, D.M., G.A. Fox, others, and B.E. Haggard. 2017. Impact of macropores and gravel outcrops on phosphorus leaching at the plot scale in silt loam soils. Transactions ASABE 60(3):823-835

Lasater, A.L., and B.E. Haggard. 2017. Sediment phosphorus flux at Lake Tenkiller, Oklahoma: How important are internal sources? Agricultural and Environmental Letters 2:170017

Scott, E., M. Leh and B.E. Haggard. 2017. Spatiotemporal variation in exceedances of bacterial water quality standards and the relationship with paste land cover. Journal of Water and Health 15.6: 839-848

Sharpley, A.N., B.E. Haggard, L. Berry, J. Burke, K. Brye, M.D. Daniels, T. Glover, T. Kresse, P. Hays, and K.W. VanDevender. 2017. Nutrient concentrations in Big Creek correlate to regional watershed land use. Agricultural and Environmental Letters 2:170027


University of Arkansas, Division of Agriculture, Biological and Agricultural Engineering Department, Professor, 2011–Present

University of Arkansas, Division of Agriculture, Biological and Agricultural Engineering Department, Associate Professor, 2006–2011

University of Arkansas Fayetteville, Division of Agriculture, Arkansas Water Resources Center, Director, 2008–Present