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Mark Williams
National Soil Erosion Research
Research Agricultural Engineer

Phone: (765) 494-8694
Fax: (765) 494-5948
Room 158

275 SOUTH RUSSELL STREET
WEST LAFAYETTE, IN 479072077
Projects
Assessing Legacy Phosphorus Losses from Fields and Watersheds in the Western Lake Erie Basin
Cooperative Agreement (A)
  Accession Number: 438254
Conservation Practice Impacts on Water Quality at Field and Watershed Scales
In-House Appropriated (D)
  Accession Number: 432501
Managing Agricultural Systems to Improve Agronomic Productivity, Soil, and Water Quality
In-House Appropriated (D)
  Accession Number: 435642
Assessing Legacy Phosphorus losses from Fields and Watersheds in the Western Lake Erie Basin
Interagency Reimbursable Agreement (I)
  Accession Number: 437760
FY 2018 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (on croplands)
Interagency Reimbursable Agreement (I)
  Accession Number: 435303
FY 2019 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (on croplands)
Interagency Reimbursable Agreement (I)
  Accession Number: 435326
FY 2020 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (on croplands)
Interagency Reimbursable Agreement (I)
  Accession Number: 439068
Effect of Hydrologic and Biogeochemical Processes on Sediment and Nutrient Transport
Non-Assistance Cooperative Agreement (S)
  Accession Number: 433224
Maintaining Water Quality Monitoring Infrastructure for the St. Joseph River Watershed Conservation Effects Assessment Project
Non-Assistance Cooperative Agreement (S)
  Accession Number: 434184
Coupling Temporally Explicit Geospatial Agronomic and Environmental Information
Non-Assistance Cooperative Agreement (S)
  Accession Number: 434780

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Controls on subsurface nutrient losses from agricultural fields during precipitation-driven events - (Peer Reviewed Journal)
Preferential flow of surface-applied solutes: Effect of lysimeter design and initial soil water content Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., Coronel, O., McAfee, S.J., Sanders, L.L. 2020. Preferential flow of surface-applied solutes: Effect of lysimeter design and initial soil water content. Vadose Zone Journal. 19:e20052. https://doi.org/10.1002/vzj2.20052.
Changing rainfall patterns over the Western Lake Erie Basin (1975-2017): Effects on tributary discharge and phosphorus load Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W. 2020. Changing rainfall patterns over the Western Lake Erie Basin (1975-2017): Effects on tributary discharge and phosphorus load. Water Resources Research. 56(3):E2019WR025985. https://doi.org/10.1029/2019WR025985.
Among-site variability in environmental and management characteristics: Effect on nutrient loss in agricultural tile drainage Reprint Icon - (Peer Reviewed Journal)
Hanrahan, B.R., King, K.W., Macrae, M.L., Williams, M.R., Stinner, J.H. 2020. Among-site variability in environmental and management characteristics: Effect on nutrient loss in agricultural tile drainage. Journal of Great Lakes Research. 46(3):486-499. https://doi.org/10.1016/j.jglr.2020.02.004.
Performance of field-scale phosphorus removal structures utilizing steel slag for treatment of subsurface drainage Reprint Icon - (Peer Reviewed Journal)
Penn, C.J., Livingston, S.J., Shedkar, V., King, K.W., Williams, M.R. 2020. Performance of field-scale phosphorus removal structures utilizing steel slag for treatment of subsurface drainage. Water. 12:443. https://doi.org/10.3390/w12020443.
Evaluation of the Soil Vulnerability Index for artificially drained cropland across eight Conservation Effects Assessment Project watersheds Reprint Icon - (Peer Reviewed Journal)
Baffaut, C., Lohani, S., Thompson, A., Davis, A.R., Aryal, N., Bjorneberg, D.L., Bingner, R.L., Dabney, S.M., Duriancik, L.F., James, D.E., King, K.W., Lee, S., McCarty, G.W., Pease, L.A., Reba, M.L., Sadeghi, A.M., Tomer, M.D., Williams, M.R., Yasarer, L.M. 2020. Evaluation of the Soil Vulnerability Index for artificially drained cropland across eight Conservation Effects Assessment Project watersheds. Journal of Soil and Water Conservation. 75(1):28-41. https://doi.org/10.2489/jswc.75.1.28.
Performance of the Soil Vulnerability Index with respect to slope, digital elevation model resolution, and hydrologic soil group Reprint Icon - (Peer Reviewed Journal)
Lohani, S., Baffaut, C., Thompson, A.L., Aryal, N., Bingner, R.L., Bjorneberg, D.L., Bosch, D.D., Bryant, R.B., Buda, A.R., Dabney, S.M., Davis, A.R., Duriancik, L.F., James, D.E., King, K.W., Kleinman, P.J., Locke, M.A., McCarty, G.W., Pease, L.A., Reba, M.L., Smith, D.R., Tomer, M.D., Veith, T.L., Williams, M.R., Yasarer, L.M. 2020. Performance of the Soil Vulnerability Index with respect to slope, digital elevation model resolution, and hydrologic soil group. Journal of Soil and Water Conservation. 75(1):12-27. https://doi.org/10.2489/jswc.75.1.12.
Dye tracers reveal potential edge-flow effects in undisturbed lysimeters sealed with petrolatum Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., McAfee, S.J., Kent, B.E. 2019. Dye tracers reveal potential edge-flow effects in undisturbed lysimeters sealed with petrolatum. Vadose Zone Journal. 8:190040. https://doi.org/10.2136/vzj2019.04.0040.
Evaluating hydrologic response in tile drained landscapes: Implications for phosphorus transport Reprint Icon - (Peer Reviewed Journal)
Macrae, M., Ali, G., King, K.W., Plach, J., Pluer, W., Williams, M.R., Morrison, M., Tang, W. 2019. Evaluating hydrologic response in tile drained landscapes: Implications for phosphorus transport. Journal of Environmental Quality. 48(5):1347-1355. https://doi.org/10.2134/jeq2019.02.0060.
The past, present, and future of blind inlets as a surface water best management practice Reprint Icon - (Peer Reviewed Journal)
Penn, C.J., Gonzalez, J.M., Williams, M.R., Smith, D.R., Livingston, S.J. 2019. The past, present, and future of blind inlets as a surface water best management practice. Critical Reviews in Environmental Science Technology. 50(7):743-768. https://doi.org/10.1080/10643389.2019.1642836.
Thresholds for runoff generation in a drained closed depression Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., Livingston, S.J., Heathman, G.C., McAfee, S.J. 2019. Thresholds for runoff generation in a drained closed depression. Hydrological Processes. https://doi.org/10.1002/hyp.13477.
Reducing the impacts of agricultural nutrients on water quality across a changing landscape - (Peer Reviewed Journal)
Peterson, H., Williams, M.R., Frankenberger, J., King, K.W., McGrath, J., Moody, L., Ribaudo, M., Strock, J. 2019. Reducing the impacts of agricultural nutrients on water quality across a changing landscape. Council for Agricultural Science and Technology Issue Paper. 64:1-60.
Nutrient balances influence hydrologic losses of nitrogen and phosphorus across agricultural fields in northwestern Ohio Reprint Icon - (Peer Reviewed Journal)
Hanrahan, B.R., King, K.W., Williams, M.R., Duncan, E.W., Pease, L.A., Labarge, G.A. 2019. Nutrient balances influence hydrologic losses of nitrogen and phosphorus across agricultural fields in northwestern Ohio. Nutrient Cycling in Agroecosystems. 113(3):231-245. https://doi.org/10.1007/s10705-019-09981-4.
Hydrologic assessment of blind inlet performance in a drained closed depression - (Peer Reviewed Journal)
CEAP in the Cedar Creek watershed ()
Williams, M.R., Livingston, S.J., Penn, C.J. 2018. CEAP in the Cedar Creek watershed. Laboratory Publication. 1(2):1-2.
Advancing the sustainability of US agriculture through long-term research Reprint Icon - (Peer Reviewed Journal)
Kleinman, P.J., Spiegal, S.A., Rigby Jr., J.R., Goslee, S.C., Baker, J.M., Bestelmeyer, B.T., Boughton, R., Bryant, R.B., Cavigelli, M.A., Derner, J.D., Duncan, E.W., Goodrich, D.C., Huggins, D.R., King, K.W., Liebig, M.A., Locke, M.A., Mirsky, S.B., Moglen, G.E., Moorman, T.B., Pierson Jr., F.B., Robertson, G., Sadler, E.J., Shortle, J., Steiner, J.L., Strickland, T.C., Swain, H., Williams, M.R., Walthall, C.L., Tsegaye, T.D. 2018. Advancing the sustainability of US agriculture through long-term research. Journal of Environmental Quality. 47(6):1412-1425. https://doi.org/doi:10.2134/jeq2018.05.0171.
A discussion on Mehlich-3 phosphorus extraction from the perspective of governing chemical reactions and phases: Impact of soil pH Reprint Icon - (Peer Reviewed Journal)
Penn, C.J., Rutter, E.B., Arnall, D.B., Camberato, J., Williams, M.R., Watkins, P. 2018. A discussion on Mehlich-3 phosphorus extraction from the perspective of governing chemical reactions and phases: Impact of soil pH. Agriculture. 8(7):106. https://doi.org/10.3390/agriculture8070106.
Dominant glacial landforms of the lower Great Lakes region exhibit different soil phosphorus chemistry and potential risk for phosphorus loss Reprint Icon - (Peer Reviewed Journal)
Plach, J.M., Macrae, M.M., Williams, M.R., Lee, B.D., King, K.W. 2018. Dominant glacial landforms of the lower Great Lakes region exhibit different soil phosphorus chemistry and potential risk for phosphorus loss. Journal of Great Lakes Research. 44:1057-1067. https://doi.org/10.1016/j.jglr.2018.07.005.
Assessing intra-event phosphorus dynamics in drainage water using phosphate stable oxygen isotopes Reprint Icon - (Peer Reviewed Journal)
Ford, W.I., Williams, M.R., Young, M.B., King, K.W., Fischer, E.N. 2018. Assessing intra-event phosphorus dynamics in drainage water using phosphate stable oxygen isotopes. Transactions of the ASABE. 61(4):1379-1392. https://doi.org/10.13031/trans.12804.
Integrating temporal inequality into conservation planning to improve practice design and efficacy Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Penn, C.J. 2018. Integrating temporal inequality into conservation planning to improve practice design and efficacy. Journal of the American Water Resources Association. 54(5):1029-1054. https://doi.org/10.1111/1752-1688.12662.
Isotopic (d18O/d2H) integrity of water samples collected and stored by automatic samplers Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., Lartey, J.L., Sanders, L.L. 2018. Isotopic (d18O/d2H) integrity of water samples collected and stored by automatic samplers. Agricultural and Environmental Letters. 3:180009. doi:10.2134/ael2018.02.0009.
Controls of event-based nutrient transport within nested headwater agricultural watersheds of the western Lake Erie basin - (Peer Reviewed Journal)
Williams, M.R., Livingston, S.J., Penn, C.J., Smith, D.R., King, K.W., Huang, C. 2018. Controls of event-based nutrient transport within nested headwater agricultural watersheds of the western Lake Erie basin. Journal of Hydrology. 559:749-761.
CEAP in the Cedar Creek watershed ()
Williams, M.R., Livingston, S.J. 2018. CEAP in the Cedar Creek watershed. USDA-Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, IN. 1(1):1-2.
Fertilizer placement and tillage effects on phosphorus leaching in fine-textured soils - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Duncan, E.W., Pease, L.A., Penn, C.J. 2018. Fertilizer placement and tillage effects on phosphorus leaching in fine-textured soils. Soil and Tillage Research. 178:130-138.
Upland and in-stream controls on baseflow nutrient dynamics in tile-drained agroecosystem watersheds Reprint Icon - (Peer Reviewed Journal)
Ford, W.I., King, K.W., Williams, M.R. 2018. Upland and in-stream controls on baseflow nutrient dynamics in tile-drained agroecosystem watersheds. Journal of Hydrology. 556:800-812.
Phosphorus export from artificially drained fields across the Eastern corn belt - (Peer Reviewed Journal)
Pease, L.A., King, K.W., Williams, M.R., Labarge, G.A., Duncan, E.W., Fausey, N.R. 2017. Phosphorus export from artificially drained fields across the Eastern corn belt. Journal of Great Lakes Research. doi.org/10.1016/j.jglr.2017.11.009.
Dissolved organic carbon loading from the field to watershed scale in tile-drained landscapes - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Fausey, N.R. 2017. Dissolved organic carbon loading from the field to watershed scale in tile-drained landscapes. Agricultural Water Management. 192:159-169.
A possible trade-off between clean air and clean water - (Peer Reviewed Journal)
Smith, D.R., Stephensen, M., King, K.W., Jarvie, H.P., Haney, R.L., Williams, M.R. 2017. A possible trade-off between clean air and clean water. Journal of Soil and Water Conservation. 72(4):75A-79A. doi:10.2489/jswc.72.4.75A.
Addressing agricultural phosphorus loss in artificially drained landscapes with 4R nutrient management practices - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Smith, D.R., LaBarge, G.A., Reutter, J., Duncan, E.W., Pease, L.A. 2018. Addressing agricultural phosphorus loss in artificially drained landscapes with 4R nutrient management practices. Journal of Soil and Water Conservation. 73:35-47.
Linking soil phosphorus to dissolved phosphorus losses in the midwest Reprint Icon - (Peer Reviewed Journal)
Duncan, E.W., King, K.W., Williams, M.R., LaBarge, G., Pease, L.A., Smith, D.R., Fausey, N.R. 2017. Linking soil phosphorus to dissolved phosphorus losses in the Midwest. Agricultural and Environmental Letters. doi: 10.2134/ael2017.02.0004.
Phosphorus availability in Western Lake Erie Basin drainage waters: legacy evidence across spatial scales Reprint Icon - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Johnson, L.T., Smith, D.R., LaBarge, G.A., Fausey, N.R. 2017. Phosphorus availability in Western Lake Erie Basin drainage waters: legacy evidence across spatial scales. Journal of Environmental Quality. 46:466-469.
Modified APEX model for simulating macropore phosphorus contributions to tile drains - (Peer Reviewed Journal)
Ford III, W.I., King, K.W., Williams, M.R., Confesor, R. 2016. Modified APEX model for simulating macropore phosphorus contributions to tile drains. Journal of Environmental Quality. doi:10.2134/jeq2016.06.0218.
Hydrologic and biogeochemical controls on phosphorus export from western Lake Erie tributaries Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Baker, D., Johnson, L., Smith, D.R., Fausey, N.R. 2016. Hydrologic and biogeochemical controls on phosphorus export from western Lake Erie tributaries. Journal of Great Lakes Research. 42:1403-1411.
Imaging hydrological processes in headwater riparian seeps with time-lapse electrical resistivity - (Peer Reviewed Journal)
Williams, M.R., Buda, A.R., Singha, K., Folmar, G.J., Elliott, H.A., Schmidt, J.P. 2016. Imaging hydrological processes in headwater riparian seeps with time-lapse electrical resistivity. Groundwater. 55(1):136-148. doi:10.1111/gwat.12461.
Edge-of-field evaluation of the Ohio phosphorus risk index - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Labarge, G., Confessor, R., Fausey, N.R. 2016. Edge-of-field evaluation of the Ohio phosphorus risk index. Journal of Environmental Quality. doi:10.2134/jeq2016.05.0198.
Framework to parameterize and validate APEX to support deployment of the nutrient tracking tool - (Peer Reviewed Journal)
Moriasi, D.N., King, K.W., Bosch, D.D., Bjorneberg, D.L., Teet, S.B., Guzman, J.A., Williams, M.R. 2016. Framework to parameterize and validate APEX to support deployment of the nutrient tracking tool. Agricultural Water Management. 177:146-164.
Framework to parameterize and validate APEX to support deployment of the nutrient tracking tool - (Peer Reviewed Journal)
Moriasi, D.N., Teet, S.B., Guzman, J.A., King, K.W., Bosch, D.D., Bjorneberg, D.L., Williams, M.R. 2016. Framework to parameterize and validate APEX to support deployment of the nutrient tracking tool. Agricultural Water Management. 177:146-164.
Decreasing phosphorus loss in tile-drained landscapes using flue gas desulfurization gypsum - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Dick, W.A., LaBarge, G.A. 2016. Decreasing phosphorus loss in tile-drained landscapes using flue gas desulfurization gypsum. Journal of Environmental Quality. 45(5):1722-1730. doi:10.2134/jeq2016.04.0132.
Assessment and synthesis of 50 years of published drainage phosphorus losses Reprint Icon - (Peer Reviewed Journal)
Christianson, L.E., Harmel, R.D., Smith, D.R., Williams, M.R., King, K.W. 2016. Assessment and synthesis of 50 years of published drainage phosphorus losses. Journal of Environmental Quality. 45:1467-1477. doi:10.2134/jeq2015.12.0593.
Effect of tillage on macropore flow and phosphorus transport to tile drains - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Ford III, W.I., Buda, A.R., Kennedy, C.D. 2016. Effect of tillage on macropore flow and phosphorus transport to tile drains. Water Resources Research. 52:2868-2882.
Managing acute phosphorus loss with fertilizer source and placement: Proof of concept - (Peer Reviewed Journal)
Smith, D.R., Harmel, R.D., Williams, M.R., Haney, R.L., King, K.W. 2016. Managing acute phosphorus loss with fertilizer source and placement: Proof of concept. Agricultural and Environmental Letters. 1:1. doi:10.2134/ael2015.12.0015.
Edge-of-field research to quantify the impacts of agricultural practices on water quality in Ohio ()
Williams, M.R., King, K.W., Ford III, W.I., Fausey, N.R. 2016. Edge-of-field research to quantify the impacts of agricultural practices on water quality in Ohio. Journal of Soil and Water Conservation. 71:9A-12A.
Uncertainty in nutrient loads from tile drained landscapes: Effect of sampling frequency, calculation algorithm, and compositing strategies Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Macrae, M.L., Ford III, W.I., Van Esbroeck, C., Brunke, R.I., English, M.C., Schiff, S.L. 2015. Uncertainty in nutrient loads from tile drained landscapes: Effect of sampling frequency, calculation algorithm, and compositing strategies. Journal of Hydrology. 530:306-316.
Effect of crop type and season on nutrient leaching to tile drainage under a corn-soybean rotation Reprint Icon - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Fausey, N.R. 2016. Effect of crop type and season on nutrient leaching to tile drainage under a corn-soybean rotation. Journal of Soil and Water Conservation. 71:56-58.
Linking nitrogen management, seep chemistry, and stream water quality in two agricultural headwater watersheds - (Peer Reviewed Journal)
Williams, M.R., Buda, A.R., Elliott, H.A., Collick, A.S., Dell, C.J., Kleinman, P.J. 2015. Linking nitrogen management, seep chemistry, and stream water quality in two agricultural headwater watersheds. Journal of Environmental Quality. 44(3):910-920.
Sensitivity analysis of the agricultural policy/environmental extender (APEX) for phosphorus loads in tile-drained landscapes Reprint Icon - (Peer Reviewed Journal)
Ford III, W.I., King, K.W., Williams, M.R., Williams, J., Fausey, N.R. 2015. Sensitivity analysis of the agricultural policy/environmental extender (APEX) for phosphorus loads in tile-drained landscapes. Journal of Environmental Quality. 44:1099-1110. DOI:10.2134/jeq2014.12.0527.
What is causing the harmful algal blooms in Lake Erie? Reprint Icon - (Peer Reviewed Journal)
Smith, D.R., King, K.W., Williams, M.R. 2015. What is causing the harmful algal blooms in Lake Erie? Journal of Soil and Water Conservation. 70(2):27A-29A.
Sensitivity analysis of the Ohio phosphorus risk index Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Dayton, E., LaBarge, G. 2015. Sensitivity analysis of the Ohio phosphorus risk index. Transactions of the ASABE. 58(1):93-102.
Influence of riparian seepage zones on nitrate variability in two agricultural headwater streams - (Peer Reviewed Journal)
Williams, M.R., Buda, A.R., Elliott, H.A., Singha, K., Hamlett, J. 2015. Influence of riparian seepage zones on nitrate variability in two agricultural headwater streams. Journal of the American Water Resources Association. 51(4): 883-897. doi: 10.1111/1752-1688.12335.
Drainage water management effects on tile dicharge and water quality - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Fausey, N.R. 2015. Drainage water management effects on tile dicharge and water quality. Agricultural Water Management. 148:43-51.
Drainage water management effects on tile discharge and water quality Reprint Icon - (Peer Reviewed Journal)
Williams, M.R., King, K.W., Fausey, N.R. 2014. Drainage water management effects on tile discharge and water quality. Agricultural Water Management. 148:43-51.
Contributions of systematic tile drainage to watershed scale phosphorus transport Reprint Icon - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Fausey, N.R. 2014. Contributions of systematic tile drainage to watershed scale phosphorus transport. Journal of Environmental Quality. 44:486-494. DOI:10.2134/jeq2014.04.0149.
Phosphorus transport in agricultural subsurface drainage: A review - (Peer Reviewed Journal)
King, K.W., Williams, M.R., Macrae, M.L., Fausey, N.R., Smith, D.R., Frankenberger, J., Kleinman, P.J., Brown, L.C. 2014. Phosphorus transport in agricultural subsurface drainage: A review. Journal of Environmental Quality. 44(2):467-85. doi:10.2134/jeq2014.04.0163.
Effect of subsurface drainage on streamflow in an agricultural headwater watershed Reprint Icon - (Peer Reviewed Journal)
King, K.W., Fausey, N.R., Williams, M.R. 2014. Effect of subsurface drainage on streamflow in an agricultural headwater watershed. Journal of Hydrology. 519:438-445.
Groundwater flow path dynamics and nitrogen transport potential in the riparian zone of an agricultural headwater catchment - (Peer Reviewed Journal)
Williams, M.R., Buda, A.R., Elliott, H., Hamlett, J., Boyer, E.W., Schmidt, J.P. 2014. Groundwater flow path dynamics and nitrogen transport potential in the riparian zone of an agricultural headwater catchment. Journal of Hydrology. 511:870-879.
Applying hydropedology to nutrient management in the northeastern US: lessons learned from the Mahantango Creek Experimental Watershed - (Abstract Only)
Buda, A.R., Williams, M.R., Folmar, G.J., Lin, H., Vitko, L.F., Kleinman, P.J., Bryant, R.B., Drohan, P.J. 2013. Applying hydropedology to nutrient management in the northeastern US: lessons learned from the Mahantango Creek Experimental Watershed [Abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 257-266.