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Department of Agronomy

Dr. Clenton Owensby

Dr. Clenton Owensby


Range Management
Email Dr. Owensby

Kansas State University
3016A Throckmorton PSC
1712 Claflin Road
Manhattan, KS 66506

Ph: +1-785-532-7232
Fx: +1-785-532-6094

Biography & Education


Dr. Owensby was born on March 17, 1940 in Clovis, New Mexico. He has held many positions, to include Research Assistant (1964-66), Instructor at K-State (1967-69), Assistant Professor at K-State (1970-73), Associate Professor at K-State (1974-78) and on to Professor at K-State (1979-present).

He belongs to four honor societies: Gamma Sigma Delta, Sigma XI, Alpha Zeta, Phi Kappa Phi, and has received many honors to include the following:

  • KSU Outstanding Agriculture Faculty Member, 1971
  • Gamma Sigma Delta Teaching Award of Merit, 1971
  • Gamma Sigma Delta Faculty Award of Merit, 1984
  • AMOCO All University Outstanding Teaching Award 1985
  • NACTA Fellow Award 1985
  • Society for Range Management Outstanding Achievement Award 1989
  • Irvin Youngberg Award for Applied Research U of Kansas $10,000 1993
  • Gamma Sigma Delta Research Award of Merit, 1994
  • KSU College of Agriculture Faculty of the Semester 2000
  • W.R. Chapline research Award - Society for Range Management 2004
  • Ph.D., Kansas State University, 1969
  • B.S., New Mexico State University, 1964


  • Gilmanov, T.G., Demment, M.W., Wylie, B.K., Laca, E.A., Akshalov, K., Baldocchi, D.D., Belelli, L., Bradford, J.A., Coulter, R.L., Dugas, W.A., Emmerich, W.E., Flanagan, L.B., Frank, A.B., Haferkamp, M.R., Johnson, D.A., Meyers, T.P., Morgan, J.A., Nasyrov, M., Owensby, C.E., Pekour, M.S., Pilegaard, K., Saliendra, N.Z., Sanz, M.J., Sims, P.L., Soussana, J.F., Tieszen, L.L., Verma, S.B. 2005. Quantification of CO2 exchange in grassland ecosystems of the world using tower measurements, modeling and remote sensing. In: Proceedings of the 20th International Grassland Congress. June 26 - July 1, 2005, University College, Dublin Ireland. p. 78.
  • Lai, C., W. Riley, C. Owensby, J. Ham, A. Schauer, and J. R. Ehleringer (2006), Seasonal and interannual variations of carbon and oxygen isotopes of respired CO2 in a tallgrass prairie: Measurements and modeling results from 3 years with contrasting water availability, J. Geophys. Res., 111, D08S06, doi:10.1029/2005JD006436.
  • Owensby, Clenton E., Jay M. Ham, and Lisa M. Auen. 2006. Fluxes of CO2 from grazed and ungrazed tallgrass prairie. Rangeland Ecology and Management 59:111-127.
    Jastrow, Julie D., R. Michael Miller, Roser Matamala, Richard J. Norby, Thomas W. Boutton, Charles W. Rice, Clenton E. Owensby. 2005. Elevated atmospheric CO2 increases soil carbon. Global Change Biology 11:2057-2064.
  • Williams, M.A., C. W. Rice, and C. Owensby. 2006. Natural 15N abundances in a tallgrass prairie ecosystem exposed to 8-y of elevated atmospheric CO2. Soil Biology and Biochemistry 38:409-412.
  • Lai, Chun-Ta, Andrew J. Schauer, Clenton Owensby, Jay M. Ham, Brent Helliker, Pieter P. Tans, Ken Masarie, James R. Ehleringer 2006. Regional CO2 fluxes inferred from mixing ratio measurements: estimates from flasked air samples in central Kansas, USA. Tellus 58B:523-536


Range Plant Physiology

Research into carbon allocation, photosynthesis, and root exudation in range grasses, nitrogen cycling associated with fire in tallgrass prairie; effect of atmospheric carbon dioxide enrichment on the tallgrass prairie ecosystem and carbon, water vapor, and energy fluxes of tallgrass prairie; impact of grazing on carbon allocation strategies including photosynthetic pathway effects; carbon sequestration under different land use practices.

Grazing Systems

Development of economically and ecologically efficient grazing systems for stocker and cow/calf enterprises.

Range Burning

Research into the effects of range burning on plant and animal components of range ecosystems.

Prairie Management & Research

Development of GPS/GIS databases and tools for research and management of prairie.

Staff & Students