Jennifer Weld

  • Assistant Research Professor
  • Director PAOneStop
Jennifer Weld
119 Agricultural Sciences and Industries Building
University Park, PA 16802
Work Phone: 877-722-4724

Areas of Expertise

  • Agricultural Erosion and Sedimentation Planning
  • Farm Mapping
  • Phosphorus Cycling and Management
  • Nutrient Management Planning


  1. B.S., Cornell University (1995)
  2. M.S., Penn State (1999)
  3. Ph.D., Penn State (ABD)
  • 25% Extension
  • 25% Teaching
  • 50% Research

Courses Taught:

  • Environmental Geographic Information Systems (Soils 450, 3 cr, every fall, undergraduate)
  • Case Studies in Ecosystem Management (ERM 413W, 3 cr, every spring, undergraduate)

Relevant Publications:

  • Collick, A.S., T.L. Veith, D.R. Fuka, P.J.A. Kleinman, A.R. Buda, J.L. Weld. 2016. Improved simulation of edaphic and manure phosphorus loss in SWAT. J. Environ. Qual. 45:1215–1225. doi:10.2134/jeq2015.03.0135.
  • Sharpley, A., P. Kleinman, C. Baffaut, D. Beegle, C. Bolster, A. Collick, Z. Easton, J. Lory, N. Nelson, D. Osmond, D. Radcliffe, T. Veith, and J. Weld. 2017. Evaluation of Phosphorus Site Assessment Tools: Lessons from the USA. J. Environ. Qual. 46:1250–1256 (2017) doi:10.2134/jeq2016.11.0427.
  • Cela, S., Q.M. Ketterings, K.J. Czymmek, J. Weld, D.B. Beegle, and P.J.A. Kleinman. 2016. Nutrient management planners' feedback on New York and Pennsylvania phosphorus indices. Journal of Soil and Water Conservation.  doi:10.2489/jswc.71.4.281.
  • Veith, T.L., S.C. Goslee, D.B. Beegle, J.L. Weld, and P.J. A. Kleinman. 2017. Analyzing Within-County Hydrogeomorphological Characteristics as a Precursor to Phosphorus Index Modifications. J. Environ. Qual. 46:1365–1371. doi:10.2134/jeq2016.10.0416.
  • Collick, A.S., D.R. Fuka, P.J.A. Kleinman, A.R. Buda, J.L. Weld, M.J. White et al. 2015. Predicting phosphorus dynamics in complex terrains using a variable source area hydrolog y model. Hydrol. Processes 29:588–601. doi:10.1002/hyp.10178.
  • Liu, J., P.J.A. Kleinman, D.B. Beegle, J.L. Weld, A.N. Sharpley, L.S. Saporito. 2015. Phosphorus and nitrogen losses from poultry litter stacks and leaching through soils. Nutrient cycling in agroecosystems 103 (1): 101-114.

Adviser:  Beegle