William S. Reeburgh

Professor, Earth System Science
School of Physical Sciences

B.S., University of Oklahoma, Chemistry
Ph.D. (Oceanography), Johns Hopkins Univ.

Phone: (949) 824-2986, 4081
Fax: (949) 824-3256
Email: reeburgh@uci.edu

University of California, Irvine
205 PSRF
Mail Code: 3100
Irvine, CA 92697
Research Interests
methane, geochemistry, atmospheric chemistry, chemical oceanography, coastal oceanography, wetlands, stable isotopes
Research Abstract
Global cycles of biogeochemically important elements Information and Figures. The role and importance of anaerobic proceses and anoxic environments in the global carbon cycle. The role of microbial processes as controls and feedbacks in global climate change.

Methane biogeochemistry and organic carbon storage in high deposition rate marine sediments and anoxic marine basins. Methane oxidation as a flux control and global sink in marine systems. Rate measurements of anaerobic methane oxidation using labelled methane (3H and 14C) tracers and extent of reaction estimates using stable isotope (2H, 13C) distributions. Methane oxidation as a control on emissions from decomposing methane clathrates. Laboratory studies using externally controlled partial pressures of hydrogen to determine whether anaerobic methane oxidation is conducted by methanogens operating in reverse.

Importance of high-latitude terestrial environments in the global carbon and atmospheric methane budgets. Response of high-latitude environments to climate change. Time series measurements of trace gas fluxes from wetland, tundra, and boreal forest systems. Biogeochemical processes at the oxic:anoxic interface in soils. Importance of aerobic methane oxidation in wetland and soil systems as a sink, flux control, and possible feedback. Detrmination of kinetic isotope effect for methane oxidation from soil profiles. Laboratory and field manipulation studies of methane oxidation sensitivity to moisture water table level, and temperature changes. Pulse labelling (14CO2) experiments to determine the role of recently-fixed photosynthetic carbon in wetland methane production and release. Biosphere 2 methane budget studies.
Walker, D. A., J. Bockheim, F. S. Chapin III, W. Eugster, J. King, J. McFadden, G. J. Michaelson, F. E. Nelson, W. C. Oechel, C. L. Ping, W. S. Reeburgh, S. K. Regli, N. I. Shiklomanov, and G. L. Vourlitis, A major arctic soil pH boundary: Implications for energy and trace-gas fluxes. Nature 394:469-472.

Reeburgh, W. S., A. I. Hirsch, F. J. Sansone, B. N. Popp, T. M. Rust. 1997. Carbon kinetic isotope effect accompanying microbial oxidation of methane in boreal forest soils. Geochim. Cosmochim Acta 61(22):4761-4767.
Reeburgh, W. S. 1997. Figures Summarizing the Global cycles of biogeochemically important elements. Bull. Ecol. Society of America 78(4):260-267.
Whalen, S. C. and W. S. Reeburgh. 1996. Moisture, temperature, and nitrogen sensitivity of CH4 oxidation in boreal soils. Soil Biology and Biochemistry 28:1271-1281.

Reeburgh, W. S. 1996. "Soft Spots" in the global methane budget. pp. 334-342. In M. E. Lidstrom and F. R. Tabita (eds.) 8th International Symposium on Microbial Growth on C-1 Compounds, Kluwer, Dordrecht.
Reeburgh, W. S. 1995. Processes that control storage of nonliving organic matter in aquatic environments, pp. 257-274. In R. G. Zepp and C. Sonntag (eds.), The Role of Non-living Organic Matter in the Earth's Carbon Cycle, Wiley & Sons Ltd., Chichester.

Professional Societies
American Geophysical Union
American Society of Limnology and Oceanography
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