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Sean Schaeffer, Ph.D.

Dr. Sean Schaeffer is an Assistant Professor in the Department of Biosystems Engineering and Soil Science at the University of Tennessee, Knoxville.

Position:

  • Associate Professor, Biosystems Engineering and Soil Science

Institution:

  • University of Tennessee, Knoxville

https://www.utk.edu/

Bio:

Dr. Sean Schaeffer is an Assistant Professor in the Department of Biosystems Engineering and Soil Science at the University of Tennessee, Knoxville. He obtained a B.Sc. from the University of Utah, a M.Sc. from the University of Arizona, and a Ph.D. from the University of Arkansas. Prior to arriving in Tennessee, he was a Postdoctoral Scholar and Project Scientist at the University of California, Santa Barbara. Dr. Schaeffer is a soil biogeochemist with research interests in the coupled cycling of carbon and nitrogen and how they control the long-term stability of soil organic matter. His current research includes USDA and NSF-funded projects studying: 1) microbial nitrogen assimilation and allocation under drought conditions, 2) the effects of carcass decomposition on ecosystem nitrogen cycles, and 3) nitrogen retention in agroecosystems. His other research interests include: the role of viruses in terrestrial biogeochemical cycles, and the application of novel stable isotope tracer techniques to study ecosystem processes.

Relevant Publications:

Austin, A. T., Yahdjian, L., Stark, J. M., Belnap, J., Porporato, A., Norton, U., … Schaeffer, S. M. (2004). Water pulses and biogeochemical cycles in arid and semiarid ecosystems. Oecologia, 141(2), 221–235. https://doi.org/10.1007/s00442-004-1519-1 

Cooper, D. (2000). Spatial and temporal properties of water vapor and latent energy flux over a riparian canopy. Agricultural and Forest Meteorology, 105(1–3), 161–183. https://doi.org/10.1016/s0168-1923(00)00180-5

Schimel, J. P., & Schaeffer, S. M. (2012). Microbial control over carbon cycling in soil. Frontiers in Microbiology, 3. https://doi.org/10.3389/fmicb.2012.00348

Goodrich, D. (2000). Seasonal estimates of riparian evapotranspiration using remote and in situ measurements. Agricultural and Forest Meteorology, 105(1–3), 281–309. https://doi.org/10.1016/s0168-1923(00)00197-0 

Mbuthia, L. W., Acosta-Martínez, V., DeBruyn, J., Schaeffer, S., Tyler, D., Odoi, E., … Eash, N. (2015). Long term tillage, cover crop, and fertilization effects on microbial community structure, activity: Implications for soil quality. Soil Biology and Biochemistry, 89, 24–34. https://doi.org/10.1016/j.soilbio.2015.06.016 

Contact Info:

(865) 974-7366

sschaef5@utk.edu

http://agresearch.tennessee.edu/dynamic/show_person.asp?which=6320

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