University of California, Riverside

Environmental Sciences

David M. Crohn

David M. Crohn

David M. Crohn Photo

Associate Professor
Extension Resource Conservation Specialist

Academic Degrees:

  • B.S. North Carolina State University, 1986
  • M.S., Cornell University, 1990
  • Ph. D., Cornell University, 1992


  • Environmental optimization; compost production and use; erosion control; soil nitrogen management

Research Group:

    Representative Publications:

    • Crohn, D.M., M.C. Mathews, and D.H. Putnam. 2009. Nitrogen content curves for small grain forage crops. Transactions of the ASABE. 52(2): 459-467.
    • Crohn, D. M., and Bianchi, M. L. 2008. Research priorities for coordinating management of food safety and water quality. Journal of Environmental Quality, 37(4):1411-1418.
    • Downer, A. J., Crohn, D., Faber, B., Daugovish, O., Becker J. O., Menge, J. A., and Mochizuki, M. J. 2008. Survival of plant pathogens in static piles of ground green waste. Phytopathology. In Press.
    • Crohn, D. M., Faber, B., Downer, A. J., and Daugovish, O. 2008. Probabilities for survival of glassy-winged sharpshooter and olive fruit fly pests in urban yard waste piles. Bioresource Technology. 99: 1425-1432.
    • Crohn, D. M. 2006. Optimizing organic fertilizer applications under steady-state conditions. Journal of Environmental Quality. 35(2): 658-669.
    • Valenzuela-Solano, C., and Crohn, D. M. 2006. Is the release of N from decomposing organic mulches determined mainly by their chemical composition? Soil Biology and Biochemistry. 38 (2): 377-384.
    • Howell, C. J., Crohn, D. M., and Omary, M. 2005. Simulating nutrient cycling and removal through treatment wetlands in hot arid and semiarid environments. Ecological Engineering. 25(1): 25-39.
    • Valenzuela-Solano, C., Crohn, D. M., and Downer, J. A. 2005. Nitrogen mineralization from eucalyptus yard waste mulch applied to young avocado trees. Biology and Fertility of Soils. 41: 38-45.
    • Crohn, D. M., Ruud, N. C., Decreynaire, J. G., and Carlon, D. B. 2005. Goodness-of-Fit Test for Modeling Tracer Breakthrough Curves in Wetlands. Journal of Environmental Engineering. 131(2): 242-251.
    • Crohn, D. M. and Valenzuela-Solano, C. 2003. Modeling temperature effects on decomposition. Journal of Environmental Engineering. 129(12): 1149-1156.

    Courses Taught:

    • ENSC 144 - Solid Waste (Fall Quarter)

    Graduate Program Affiliations and Research Focus Areas:

    More Information

    General Campus Information

    University of California, Riverside
    900 University Ave.
    Riverside, CA 92521
    Tel: (951) 827-1012

    Department Information

    Environmental Sciences
    Geology 2460

    Tel: (951) 827-5116
    Fax: (951) 827-4652