University of California, Riverside

Environmental Sciences

Pete Homyak

Peter M. HomyakPete Homyak Photograph

Assistant Professor of Ecosystem and Soil Microbial Processes

Academic Degrees:

  • Ph.D., Soil and Water Science, UC Riverside, 2012
  • M.S., Forest and Nat. Res. Mngmt., SUNY ESF, 2008
  • B.S., Env. Studies, Binghamton University, 2004

Selected Awards and Honors:

  • Ford Foundation Postdoctoral Fellowship, 2017
  • S.A. Wilde Early Career Achievement Award. Forest Range and Wildland Soil Division. Soil Science Society of America, 2017
  • Gene E. Likens Outstanding Publication Award. Biogeosciences section. Ecological Society of America, 2016
  • NSF Postdoctoral fellowship, 2012
  • NSF GK-12 Teaching Fellowship, 2006


  • Microbial and abiotic controls on soil trace gas emissions
  • Ecosystem biogeochemistry

Research Group

    Students interested in ecosystem and soil microbial processes should contact Pete Homyak to discuss Ph.D. and postdoctoral position opportunities.

    Current Research

    • Effects of drought on soil microbial processes and biogeochemical cycling
    • Soil organic N cycling in N-limited ecosystems
    • Atmospheric P inputs as drivers of alpine ecosystem development

    Selected Publications:

    • Homyak, P.M., J.C. Blankinship, E.W. Slessarev, S.M. Schaeffer, S. Manzoni, and J.P. Schimel. In press. Effects of altered dry-season length and plant inputs on soluble soil carbon. Ecology
    • Homyak, P.M., S.D. Allison, T.E. Huxman, M.L. Goulden, and K.K. Treseder. 2017. Effects of drought manipulation on soil nitrogen cycling: A meta-analysis. Journal of Geophysical Research-Biogeosciences 122: 3260-3272
    • Homyak, P.M.*, J.C. Blankinship, K. Marchus, D.M. Lucero, J.O. Sickman, and J.P. Schimel. 2016. Aridity and plant uptake interact to make dryland soils hotspots for nitric oxide (NO) emissions. Proceedings of the National Academy of Sciences of the United States of America 113: E2608-E2616
    • Homyak, P.M., J.O. Sickman, and J.M. Melack. 2014. Pools, transformations, and sources of P in high-elevation soils: Implications for nutrient transfer to Sierra Nevada lakes. Geoderma 217-218: 65-73

    Courses Taught:

    • TBD

    Graduate Program Affiliations and Research Focus Areas:

    • Research Focus Areas
      • Soil and Water Sciences
    • Programs
      • Environmental Sciences

    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