Schoonover, J.E., K.W.J. Williard, C.R. Blattel, and C.M. Yocum.  2010.  The utility of giant cane as a riparian buffer species in southern Illinois agricultural landscapes.  Agroforestry Systems 80:97-107.

 

*Goldstein, C.L., K.W.J. Williard, J.E. Schoonover, S.G. Baer, J.W. Groninger, and J.M. Snyder.  2010.  Soil and groundwater nitrogen response to invasion by an exotic N-fixing shrub. Journal of Environmental Quality 39:1077-1084.

 

Davenport, M.D., C. Bridges, J.C. Mangun, A.D. Carver, K.W.J. Williard, E. Jones.  2010.  Building local community commitment to wetlands restoration: A case study of the Cache River Wetlands in southern Illinois, U.S.A.  Environmental Management 45:711-722.

 

*Bold, K.C., F. Wood, P.J. Edwards, K.W.J Williard, and J.E. Schoonover.  2010.  Using image analysis for meeting vegetative cover objectives on cutbanks for land management.  Environmental Monitoring and Assessment 163:685-698.

 

Edwards, P.J. and K.W.J. Williard.  2010.  Efficiencies of forestry best management practices for reducing sediment and nutrient losses in the eastern United States. Journal of Forestry 108:245-249.

 

Floress, K., J.C. Mangun, M.A. Davenport, and K.W.J. Williard.  2009.  Structural and procedural constraints to collaborative watershed planning: a case study of a citizen-based watershed planning process.  Journal of the American Water Resources Association 45:1352-1360.

 

*Blattel C.R., K.W.J. Williard, S.G. Baer, J.E. Schoonover, and J.J. Zaczek.  2009.  Ground water nitrogen dynamics in giant cane and forest riparian buffers.  Castanea 74:259-270.

 

Zaczek, J.J., S.G. Baer, J.L. Hartleb, W.W. Brendecke, J.E. Schoonover, K.W.J. Williard, and J.W. Groninger.  2009.  Survival and genet growth and development of field-planted giant cane (Arundinaria gigantea) over time in southern Illinois.  Castanea 74:286-299.

 

*Goldstein, C.L., K.W.J. Williard, and J.E. Schoonover. 2009.  Impact of an invasive exotic species on stream nitrogen levels in southern Illinois.  Journal of the American Water Resources Association 45:664-672.

 

Romano, S.P., S.G. Baer, J.J. Zaczek, and K.W.J. Williard.  2009.  Site modeling methods for detecting hydrologic alteration of flood frequency and flood duration in the floodplain below the Carlyle Dam, Lower Kaskaskia River, Illinois, USA.  River Research and Applications 25:975-984.

 

Edwards, P.J. and K.W.J. Williard.  2006.  Declines in soil-water nitrate in nitrogen-

saturated watersheds.  Canadian Journal of Forest Research 36:1931-1942.

 

Baer, S.G., J.M. Church, K.W.J. Williard, and J.W. Groninger.  2006.  Changes in

intrasystem N cycling from N2-fixing shrub encroachment in grassland: multiple positive feedbacks.  Agriculture, Ecosystems, and Environment 115:174-182.

 

*O’Brien, J.M. and K.W.J. Williard.  2006.  Potential denitrification rates in an agricultural stream in southern IllinoisJournal of Freshwater Ecology 21(1):157-162.

 

*Schoonover, J.E., K.W.J. Williard, J.J. Zaczek, J.C. Mangun, and A.D. Carver.  2006.  Agricultural sediment reduction by giant cane and forest riparian buffer zones. Water, Air, and Soil Pollution 169(1-4):303-315.

 

Stone, M.L., M.R. Whiles, J.A. Webber, K.W.J. Williard, and J.D. Reeve. 2005.Macroinvertebrate communities in agriculturally impacted southern Illinois streams: patterns with riparian vegetation, water quality, and in-stream habitat quality.  Journal of Environmental Quality 34(3):907-917.

 

*Schoonover, J.E., K.W.J. Williard, J.J. Zaczek, J.C. Mangun, and A.D. Carver.  2005.  Nutrient attenuation in agricultural surface runoff by riparian buffer zones in southern Illinois, USA.  Agroforestry Systems 64(2):169-180.

            

*Blattel, C.R. K.W.J. Williard, S.G. Baer, J.J. Zaczek.  2005.  Abatement of ground water phosphate in giant cane and forest riparian buffers.  Journal of the American Water Resources Association 39(2):301-307.

 

Williard, K.W.J., D.R. DeWalle, and P.J. Edwards.  2005.  Influence of bedrock geology and tree species composition on stream nitrate concentrations in mid-Appalachian forested watersheds.  Water, Air, and Soil Pollution 160:55-76.

 

Edwards, P.J., K.W.J. Williard, and J.N. Kochenderfer.  2004.  Sampling considerations forestablishment of baseline loadings from forested watersheds for TMDL application.  Environmental Monitoring and Assessment 98:201-223.

 

Carver, A.D., S.D. Danskin, J.J. Zaczek, J.C. Mangun, and K.W.J. Williard.  2004.  A GIS methodology for generating riparian tree planting recommendations.  Northern Journal of Applied Forestry 21(2):100-106.

 

*Schoonover J.E. and K.W.J. Williard.  2003.  Groundwater nitrate reduction in giant cane and forest riparian buffer zones.  Journal of the American Water Resources Association 39(2):347-354.

 

Williard, K.W.J., D.R. DeWalle, P.J. Edwards, and W.E. Sharpe.  2001.  18O isotopic separation of stream nitrate sources in mid-Appalachian forested watersheds.  Journal of Hydrology 252(1-4):174-188.

 

Williard, K.W.J., D.R. DeWalle, P.J. Edwards, and R.R. Schnabel.  1997.  Indicators of nitrate export from forested watersheds of the mid-Appalachians, United States of America.  Global Biogeochemical Cycles 11(4):649-656.

Journal Articles

Department of Forestry

 

Watershed Science Research Group 

Journal Articles