Gordon J Folmar
Pasture Systems & Watershed Management Research
Hydrologist
Phone: (814) 863-8763
Fax: (814) 863-0935
CURTIN ROAD, BUILDING 3702
UNIVERSITY PARK, PA 168023702
Publications
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Urea fluctuations in stream baseflow across land cover gradients and seasons in a coastal plain river system
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(Peer Reviewed Journal)
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Tzilkowski, S.S., Buda, A.R., Boyer, E.W., Bryant, R.B., Kleinman, P.J., Kennedy, C.D., Allen, A.L., Folmar, G.J., May, E.B. 2018. Urea fluctuations in stream baseflow across land cover gradients and seasons in a coastal plain river system. Journal of the American Water Resources Association. 55(1):228-246. https://doi.org/10.1111/1752-1688.12716.
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Long-term trends in climate, hydrology, and water quality in a central Pennsylvania watershed: more grazing?
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(Abstract Only)
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Development of field-scale lysimeters to assess management impacts on runoff
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(Peer Reviewed Journal)
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Duncan, E., Kleinman, P.J., Folmar, G.J., Saporito, L.S., Feyereisen, G.W., Buda, A.R., Vitko, L., Collick, A., Drohan, P., Lin, H., Bryant, R.B., Beegle, D. 2017. Development of field-scale lysimeters to assess management impacts on runoff. American Society of Agricultural and Biological Engineers. 60:419-429. https://doi.org/10.13031/trans.11901.
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Declining atmospheric sulfate deposition in a small agricultural watershed in central Pennsylvania, USA
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(Peer Reviewed Journal)
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Elkin, K.R., Veith, T.L., Lu, H., Goslee, S.C., Buda, A.R., Collick, A.S., Folmar, G.J., Kleinman, P.J., Bryant, R.B. 2016. Declining atmospheric sulfate deposition in a small agricultural watershed in central Pennsylvania, USA. Agricultural and Environmental Letters. 1:160039. doi:10.2134/ael2016.09.0039.
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Imaging hydrological processes in headwater riparian seeps with time-lapse electrical resistivity
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(Peer Reviewed Journal)
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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.
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Long-term trends in climate and hydrology in an agricultural, headwater watershed of central Pennsylvania, USA
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(Peer Reviewed Journal)
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Lu, H., Bryant, R.B., Buda, A.R., Collick, A.S., Folmar, G.J., Kleinman, P.J. 2015. Long-term trends in climate and hydrology in an agricultural, headwater watershed of central Pennsylvania, USA. Journal of Hydrology. 4(B):713-731. doi: 10.1016/j.ejrh.2015.10.004.
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Long-term trends in climate and hydrology in an agricultural headwater watershed of central Pennsylvania, USA
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(Proceedings)
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Bryant, R.B., Lu, H., Elkin, K.R., Buda, A.R., Collick, A.S., Folmar, G.J., Kleinman, P.J. 2016. Long-term trends in climate and hydrology in an agricultural headwater watershed of central Pennsylvania, USA. American Water Resources Association Conference Proceedings,4:713-731.
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Using the Sacramento soil moisture accounting model to provide short-term forecasts of surface runoff for daily decision making in nutrient management
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(Abstract Only)
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Buda, A.R., Reed, S.M., Moser, C.L., Folmar, G.J., Kleinman, P.J., Bryant, R.B., Knight, P.G., Miller, D., Bills, B., Ahnert, P., Drohan, P. 2014. Using the Sacramento soil moisture accounting model to provide short-term forecasts of surface runoff for daily decision making in nutrient management. American Water Resources Association Conference Proceedings. P. 1.
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Applying hydropedology to nutrient management in the northeastern US: lessons learned from the Mahantango Creek Experimental Watershed
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(Abstract Only)
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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.
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Phosphorus transport by surface and subsurface flow pathways in an upland agricultural watershed
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(Abstract Only)
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Buda, A.R., Kleinman, P.J., Bryant, R.B., Drohan, P.J., Folmar, G.J., Dewalle, D.R. 2012. Phosphorus transport by surface and subsurface flow pathways in an upland agricultural watershed[abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Poster No 335.
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Using flue gas desulfurization gypsum to remove dissolved phosphorus from agricultural drainage waters
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(Peer Reviewed Journal)
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Bryant, R.B., Buda, A.R., Kleinman, P.J., Church, C., Saporito, L.S., Folmar, G.J., Bose, S., Allen, A.L. 2012. Using flue gas desulfurization gypsum to remove dissolved phosphorus from agricultural drainage waters. Journal of Environmental Quality. 41(3):664-671. DOI: 10.2134/jeq2011.0294.
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Fragipan controls on nitrogen loss by surface and subsurface flow pathways in an upland agricultural watershed
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(Abstract Only)
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Buda, A.R., Kleinman, P.J.A., Bryant, R.B., Schmidt, J.P., Drohan, P.J., Folmar, G.J., Dewalle, D.R. 2011. Fragipan controls on nitrogen loss by surface and subsurface flow pathways in an upland agricultural watershed [abstract]. American Geophysical Union. Paper No. B11C-0510.
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U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: physiography and history
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(Peer Reviewed Journal)
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Bryant, R.B., Veith, T.L., Feyereisen, G.W., Buda, A.R., Church, C., Folmar, G.J., Schmidt, J.P., Dell, C.J., Kleinman, P.J.A. 2011. U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: physiography and history. Water Resources Research. 47. DOI: 10.1029/2010WR010056.
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U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term precipitation database
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(Peer Reviewed Journal)
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Buda, A.R., Veith, T.L., Folmar, G.J., Feyereisen, G.W., Bryant, R.B., Church, C., Schmidt, J.P., Dell, C.J., Kleinman, P.J.A. 2011. U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term precipitation database. Water Resources Research. 47. DOI: 10.1029/2010WR010058.
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U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term stream discharge database
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(Peer Reviewed Journal)
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Buda, A.R., Feyereisen, G.W., Veith, T.L., Folmar, G.J., Bryant, R.B., Church, C., Schmidt, J.P., Dell, C.J., Kleinman, P.J.A. 2011. U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term stream discharge database. Water Resources Research. 47. DOI: 10.1029/2010WR010059.
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U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term water quality database
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(Peer Reviewed Journal)
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Church, C., Veith, T.L., Folmar, G.J., Buda, A.R., Feyereisen, G.W., Bryant, R.B., Schmidt, J.P., Dell, C.J., Kleinman, P.J.A. 2011. U.S. Department of Agriculture Agricultural Research Service Mahantango Creek Watershed, Pennsylvania, United States: long-term water quality database. Water Resources Research. 47. DOI: 10.1029/2010WR010060.
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Nitrogen loss from a mixed land use watershed as influenced by hydrology and seasons
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(Peer Reviewed Journal)
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Zhu, Q., Schmidt, J.P., Buda, A.R., Bryant, R.B., Folmar, G.J. 2011. Nitrogen loss from a mixed land use watershed as influenced by hydrology and seasons. Journal of Hydrology. 405(3-4):307-315.
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Manure application under winter conditions: Nutrient runoff and leaching losses
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(Peer Reviewed Journal)
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Williams, M.R., Feyereisen, G.W., Beegle, D.B., Shannon, R.D., Folmar, G.J., Bryant, R.B. 2011. Manure application under winter conditions: Nutrient runoff and leaching losses. American Society of Agricultural and Biological Engineers. 54(3):891-899.
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Experimental system for simulating a natural soil temperature profile during freeze-thaw cycles
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(Peer Reviewed Journal)
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Williams, M.R., Feyereisen, G.W., Folmar, G.J., Lin, H.S. 2010. Experimental system for simulating a natural soil temperature profile during freeze-thaw cycles. Applied Engineering in Agriculture. 26(5):843-848.
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Manure Application under Winter Conditions: Nutrient Runoff and Leaching Losses
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(Abstract Only)
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Williams, M.R., Feyereisen, G.W., Beegle, D.B., Shannon, R.D., Folmar, G.J., Bryant, R.B. 2010. Manure Application under Winter Conditions: Nutrient Runoff and Leaching Losses [poster]. Twenty-fifth Annual Graduate Exhibition. March 26-28, 2010. The Pennsylvania State University, University Park, PA.
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Manure Application under Winter Conditions: Nutrient Runoff and Leaching Losses
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(Abstract Only)
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Williams, M.R., Feyereisen, G.W., Beegle, D.B., Shannon, R.D., Folmar, G.J., Bryant, R.B. 2010. Manure Application under Winter Conditions: Nutrient Runoff and Leaching Losses [poster]. Gamma Sigma Delta Annual Graduate and Undergraduate Research Expo. March 17-18, 2010. The Pennsylvania State University, University Park, PA.
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Effect of direct incorporation of poultry litter on phosphorus leaching from coastal plain soils
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(Peer Reviewed Journal)
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Feyereisen, G.W., Kleinman, P.J., Folmar, G.J., Saporito, L.S., Way, T.R., Church, C., Allen, A.L. 2010. Effect of direct incorporation of poultry litter on phosphorus leaching from coastal plain soils. Journal of Soil and Water Conservation. 65(4):243-251.
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Manure Application Under Winter Conditions: Nutrient Runoff and Leaching Losses
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(Proceedings)
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Williams, M.W., Feyereisen, G.W., Beegle, D.B., Shannon, R.D., Folmar, G.J., Bryant, R.B. 2010. Manure Application Under Winter Conditions: Nutrient Runoff and Leaching Losses [abstract]. American Society of Agricultural and Biological Engineers. Paper No. 1009194.
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A Phosphorus Transport Study: Influence of Poultry Litter Application Method on Leaching
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(Abstract Only)
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Feyereisen, G.W., Kleinman, P.J., Folmar, G.J., Saporito, L.S., Allen, A.L. 2010. A Phosphorus Transport Study: Influence of Poultry Litter Application Method on Leaching [abstract]. American Society of Agricultural and Biological Engineers. Paper No. 1009193.
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Development of a lysimeter system to simultaneously study runoff and leaching dynamics
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(Peer Reviewed Journal)
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Feyereisen, G.W., Folmar, G.J. 2009. Development of a lysimeter system to simultaneously study runoff and leaching dynamics. Transactions of the ASABE. 52(5):1585-1591.
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Experimental System for Simulating a Natural Soil Temperature Profile during Freeze-thaw Cycles
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(Abstract Only)
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Williams, M.R., Feyereisen, G.W., Folmar, G.J. 2009. Experimental System for Simulating a Natural Soil Temperature Profile during Freeze-thaw Cycles. ASABE Annual International Meeting. Paper No. 096281.
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Long-term Watershed Database for the Ridge and Valley Physiographic Province: Mahantango Creek Watershed, Pennsylvania, USA
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(Abstract Only)
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Feyereisen, G.W., Bryant, R.B., Kleinman, P.J., Veith, T. L., Schmidt, J.P., Buda, A. R., Folmar, G.J., Saporito, L.S. 2009. Long-term Watershed Database for the Ridge and Valley Physiographic Province: Mahantango Creek Watershed, Pennsylvania, USA [abstract}. Soil and Water Conservation Society Proceedings. p. 86.
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Integrating contributing areas and indexing phosphorus loss from agricultural watersheds
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(Peer Reviewed Journal)
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Sharpley, A.N., Kleinman, P.J., Heathwaite, A.L., Gburek, W., Weld, J.L., Folmar, G.J. 2008. Integrating contributing areas and indexing phosphorus loss from agricultural watersheds. Journal of Environmental Quality. 37:1488-1496.
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PHOSPHORUS LOSS FROM AN AGRICULTURAL WATERSHED AS A FUNCTION OF STORM SIZE
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(Peer Reviewed Journal)
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Sharpley, A.N., Kleinman, P.J., Heathwaite, A.L., Gburek, W., Folmar, G.J., Schmidt, J.P. 2008. Phosphorus loss from an agricultural watershed as a function of storm size. Journal of Environmental Quality. 37:362-368.
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Development of a Lysimeter System to Simultaneously Study Runoff and Leaching Dynamics
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(Proceedings)
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Feyereisen, G.W., Folmar, G.J. 2008. Development of a Lysimeter System to Simultaneously Study Runoff and Leaching Dynamics. Proceedings of the American Society of Agricultural and Biological Engineers International Meeting. Providence, RI. Paper No. 084073.
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Optimum nitrogen rate for corn related to hillslope variability in soil water redistribution
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Schmidt, J.P., Hong, N., Folmar, G.J., Beegle, D., Lin, H. 2007. Optimum nitrogen rate for corn increases with greater soil water ability. In: Bruulsema, Tom (ed.) Managing Crop Nitrogen for Weather. International Plant Nutrition Institute, Norcross, GA. P. 4.1-4.10.
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Dynamics of phosphorus transfers from heavily manured coastal plain soils to drainage ditches
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(Peer Reviewed Journal)
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Kleinman, P.J., Allen, A.L., Needelman, B.A., Sharpley, A.N., Vadas, P.A., Saporito, L.S., Folmar, G.J., Bryant, R.B. 2007. Dynamics of phosphorus transfers from heavily manured coastal plain soils to drainage ditches. Journal of Soil and Water Conservation. 62(4):225-234.
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MULTIPLE METHODS OF RECHARGE ESTIMATION AT A HUMID-REGION FRACTURED ROCK SITE
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(Peer Reviewed Journal)
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Hepner, C.S., Nimmo, J.R., Folmar, G.J., Gburek, W., Risser, D.W. 2007. Multiple-methods investigation of recharge at a humid-region fractured rock site, Pennsylvania, USA. Hydrogeology Journal [serial online}. Available: http://www.springerlink.com/content/102028/.
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COMPARISON OF METHODS FOR ESTIMATING GROUND-WATER RECHARGE AND BASE FLOW AT A SMALL WATERSHED UNDERLAIN BY FRACTURED BEDROCK IN THE EASTERN UNITED STATES
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Risser, D.W., Gburek, W.J., Folmar, G.J. 2005. Comparison of methods for estimating ground-water recharge and base flow at a small watershed underlain by fractured bedrock in the eastern united states. U.S. Geological Survey Scientific Investigations Report. 31 p.
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ACCOUNTING FOR LAND USE CHANGES ON PHOSPHORUS LOSS POTENTIAL USING A PHOSPHORUS INDEX
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(Abstract Only)
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Weld, J.L., Sharpley, A.N., Folmar, G.J. 2003. Accounting for land use changes on phosphorus loss potential using a phosphorus index [Abstract]. American Society of Agronomy Abstracts. Paper No. 692068.
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MODIFICATION OF PHOSPHORUS EXPORT FROM A CATCHMENT BY FLUVIAL SEDIMENT PHOSPHORUS INPUTS
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(Peer Reviewed Journal)
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McDowell, R.W., Sharpley, A.N., Folmar, G.J. 2003. Modification of phosphorus export from a catchment by fluvial sediment phosphorus inputs. Agriculture Ecosystems and the Environment. 99:187-199.
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EFFECT OF SOIL TYPE AND FERTILIZATION LEVEL ON MINERAL CONCENTRATION OF PASTURE: RELATIONSHIP TO RUMINANT PERFORMANCE AND HEALTH
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(Abstract Only)
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Soder, K.J., Stout, W.L., Gburek, W.J., Folmar, G.J. Effect of Soil Type and Fertilization Level on Mineral Concentration of Pasture: Relationship to Ruminant Performance and Health. Joint Abstracts of the American Dairy Science and Society of Animal Science. Journal of Dairy Science. 2002. v. 85(Suppl.1): Abstract p. 386.
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STREAMFLOW CHEMISTRY IN NESTED WATERSHEDS WITHIN THE RIDGE AND VALLEY PHYSIOGRAPHIC PROVINCE
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(Peer Reviewed Journal)
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Lindsey, B.D., Gburek, W.J., Folmar, G.J. 2001. Watershed scaling effect on base flow nitrate, valley and ridge physiographic province. Journal of the American Water Resources Association. 37(5):1103-1117.
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PHOSPHORUS EXPORT FROM AN AGRICULTURAL WATERSHED: LINKING SOURCE AND TRANSPORT MECHANISMS
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(Peer Reviewed Journal)
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Mcdowell, R.W., Sharpley, A.N., Folmar, G.J. 2001. Phosphorus export from an agricultural watershed: linking source and transport mechanisms. Journal Of Environmental Quality. 30(5):1587-1595.
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WATER QUALITY IMPLICATIONS OF DAIRY MANURE APPLIED TO PASTURES IN THE NORTHEAST U.S.
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(Peer Reviewed Journal)
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Stout, W.L., Weaver, S.R., Gburek, W.J., Folmar, G.J., Schnabel, R.R. 2000. Water quality implications of dairy slurry applied to pastures in the northeast USA. Soil Use and Management. 16:189-193.
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DEVELOPING AN INTEGRATED NUTRIENT MANAGEMENT APPROACH FOR LAND-APPLIED MANURE AT A WATERSHED SCALE
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(Proceedings)
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Sharpley, A.N., Kleinman, P.J., Gburek, W.J., Folmar, G.J. 1999. Developing an integrated nutrient management approach for land applied manure at a watershed scale. Manure Management Conference Proceedings. p. 63-74.
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CRITICAL AREAS OF PHOSPHORUS EXPORT FROM AGRICULTURAL WATERSHEDS
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(Proceedings)
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GIS-BASED DELINEATION OF NUTRIENT SOURCE-AREAS WITHIN UPLAND AGRICULTURAL WATERSHEDS
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(Proceedings)
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GROUND WATER CONTROLS ON HYDROLOGY AND WATER QUALITY WITHIN RURAL UPLAND WATERSHEDS OF THE CHESAPEAKE BAY BASIN
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(Proceedings)
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