USGS Professional Pages
Research EcologistContact Info
I am an ecologist who studies biogeochemical cycling of carbon in terrestrial and aquatic systems. My education includes an undergraduate degree in Zoology with an emphasis on Limnology (Miami University, Ohio), and graduate degrees in Biology and Geological Sciences with an emphasis on biogeochemical cycles (MA, PhD - Univ. Colorado-Boulder). I have significant expertise in the study of carbon dioxide and methane gas production, uptake, and emissions from terrestrial and aquatic systems, as well as the generation and fate of terrestrially-derived dissolved organic carbon. I study a large range of ecosystems, including wetlands, forests, tundra, lakes, streams, and rivers in temperate and northern high latitude regions.
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PublicationsCrawford, J.T., R.G. Striegl, K.P. Wickland, M.M. Dornblaser, and E.H. Stanley, 2013, Emissions of carbon dioxide and methane from a headwater stream network of interior Alaska, J. Geophys. Res. Biogeosci., 118, doi:10.1002/jgrg.20034. [Link]
E. A. G. Schuur, B. W. Abbott, W. B. Bowden, V. Brovkin, P. Camill, J. G. Canadell, J. P. Chanton, F. S. Chapin III, T. R. Christensen, P. Ciais, B. T. Crosby, C. I. Czimczik, G. Grosse,J. Harden, D. J. Hayes, G. Hugelius, J. D. Jastrow, J. B. Jones, T. Kleinen, C. D. Koven, G. Krinner, P. Kuhry, D. M. Lawrence, A. D. McGuire, S. M. Natali, J. A. O’Donnell, C. L. Ping,W. J. Riley, A. Rinke, V. E. Romanovsky, A. B. K. Sannel, C. Schädel, K. Schaefer, J. Sky, Z. M. Subin, C. Tarnocai, M. R. Turetsky, M. P. Waldrop, K. M. Walter Anthony, K. P. Wickland,C. J. Wilson and S. A. Zimov, 2013, Expert assessment of vulnerability of permafrost carbon to climate change, Climatic Change, 10.1007/s10584-013-0730-7. [Link]
Wickland, K.P., G.R. Aiken, K. Butler, M.M. Dornblaser, R.G.M. Spencer, and R.G. Striegl, 2012, Biodegradability of dissolved organic carbon in the Yukon River and its tributaries: seasonality and importance of inorganic nitrogen, Global Biogeochemical Cycles, 26, GB0E03, doi:10.1029/2012GB0004342.
Kelsey, K.C., Wickland, K.P., Neff, J.C., and Striegl, R.G, 2012, Variation in soil carbon dioxide at two spatial scales in a topographically complex boreal forest, Arctic, Antarctic, and Alpine Research, 44(4): 457-468, doi: http://dx.doi.org/10.1657/1938-4246-44.4.457.
Grosse, G., Harden, J., Turetsky, M., McGuire, A.D., Camill, P., Tarnocai, C., Frolking, S., Schuur, E.A.G. Jorgenson, T., Marchenko, S., Romanovsky, V., Wickland, K.P., N. French, N., Waldrop, M., Bourgeau-Chavez, L., and Striegl, R.G., 2011, Vulnerability of high-latitude soil organic carbon in North America to disturbance, Journal of Geophysical Research, 116, G00K06, doi:10.1029/2010JG001507.
O’Donnell, J.A., Jorgenson, M.T., Harden, J.W., McGuire, A.D., Kanevskiy, M.Z., and Wickland, K.P., 2011, The effects of permafrost thaw on soil hydrologic, thermal, and carbon dynamics in an Alaskan peatland, Ecosystems, doi:10.1007/s10021-011-9504-0, published online by journal Nov. 17, 2011, 17pp.
Wickland, K.P., Neff, J.C., and Harden, J.W., 2010, The role of soil drainage class in carbon dioxide exchange and decomposition in boreal black spruce (Picea mariana) forest stands, Canadian Journal of Forest Research, 40 (11): 2123-2134.
Waldrop, M.P., Wickland, K.P., White, R., Berhe, A.A., Harden, J.W., and Romanovsky, V.E., 2010, Molecular investigations into a globally important carbon pool: Permafrost-protected carbon in Alaskan soils, Global Change Biology, 16 (9): 2543-2554.
Fan, Z., Neff, J.C., and Wickland, K.P., 2010, Modeling the production, decomposition, and transport of dissolved organic carbon in boreal soils: Soil Science, v. 175, no. 5, p. 223-232.
Wickland, K.P., and Neff, J.C., 2008, Decomposition of soil organic matter from boreal black spruce forest: Environmental and chemical controls: Biogeochemistry, 87:29-47, doi:10.1007/s10533-007-9166-3.
Spencer, R.G., Aiken, G.R., Wickland, K.P., Striegl, R.G., and Hernes, P.J., 2008, Seasonal and spatial variability in dissolved organic matter quantity and composition from the Yukon River basin, Alaska: Global Biogeochemical Cycles, v. 22, GB4002, doi:10.1029/2008GB003231.
Fan, Z., Neff, J.C., Harden, J.W., and Wickland, K.P., 2008, Boreal soil carbon dynamics under a changing climate -A model inversion approach: Journal of Geophysical Research, v. 113, G04016, doi:10.1029/2008JG000723.
Striegl, R.G., Dornblaser, M.M., Aiken, G.R., Wickland, K.P., and Raymond, P.A., 2007, Carbon export and cycling by the Yukon, Tanana, and Porcupine Rivers, Alaska, 2001-2005: Water Resources Research, 43, W02411, doi:10.1029/2006WR005201.
Wickland, K.P., Neff, J.C., and Aiken, G.R., 2007, Dissolved organic carbon in Alaskan boreal forest: Sources, chemical characteristics, and biodegradability: Ecosystems, 10(8):1323-1340, doi:10.1007/s10021-007-9104-4.
Wickland, K.P., Striegl, R.G., Neff, J.C., and Sachs, T., 2006, Effects of permafrost melting on CO2 and CH4 exchange of a poorly-drained black spruce lowland: Journal of Geophysical Research-Biogeosciences, 111, G02011, doi:10.1029/2005JG000099.
Striegl, R.G., Aiken, G.R., Dornblaser, M.M., Raymond, P.A., and Wickland, K.P., 2005, A decrease in discharge-normalized DOC export by the Yukon River during summer through autumn: Geophysical Research Letters, 32, L21413, doi:10.1029/2005GL024413.
Wickland, K.P., Striegl, R.G., Mast, M.A., and Clow, D.W., 2001, Carbon gas exchange at a southern Rocky Mountain wetland, 1996-1998: Global Biogeochemical Cycles, 15(2): 321-335.
Striegl, R.G., Schindler, J.E., Wickland, K.P., Hudson, D.C., and Knight, G., 2000, Patterns of carbon dioxide and methane saturation in 34 Minnesota and Wisconsin Lakes: Verh. Internat. Verein. Limnol., 27: 1424-1427.
Wickland, K.P., Striegl, R.G., Schmidt, S.K., and Mast, M.A., 1999, Methane fluxes in subalpine wetland and unsaturated soils in the southern Rocky Mountains: Global Biogeochemical Cycles, 13(1): 101-113.
Mast, M.A., Wickland, K.P., Striegl, R.G., and Clow, D.W., 1998, Winter fluxes of CO2 and CH4 from subalpine soils in Rocky Mountain National Park, Colorado: Global Biogeochemical Cycles, 12(4): 607-620.
Striegl, R.G., and Wickland, K.P., 1998, Effects of a clear-cut harvest on soil respiration on a jack pine-lichen woodland: Canadian Journal of Forest Research, 28: 534-539.
Wickland, K.P., and Striegl, R.G., 1997, Measurements of soil carbon dioxide and methane concentrations and fluxes, and soil properties at four ages of jack pine forest in the Southern Study Area of the Boreal Ecosystem Atmosphere Study, Saskatchewan, Canada, 1993-95: U.S. Geological Survey Open-File Report 97-49, 73 pp.
My Science Topics
My USGS Science Strategy AreasClimate Variability & Change
Understanding Ecosystems & Predicting Ecosystems Change
Terrestrial-Aquatic-Atmosphere Exchange of Carbon
The broad objective of my research is to determine organic carbon metabolism rates and controls as a fundamental component of the terrestrial-aquatic-atmospheric exchange of carbon. I quantify the relative importance of intrinsic substrate properties and environmental variables to carbon metabolism, and the impact of climate change and other disturbances. My research is focused on boreal and arctic systems, where nearly ½ of the global soil organic pool resides and is vulnerable to climate change. My specific research objectives include: 1) quantifying the release of carbon dioxide, methane, and dissolved organic carbon from landscapes experiencing permafrost thaw, and 2) quantifying rates and controls of the metabolism of terrestrially-derived DOC in freshwater systems of boreal and arctic regions, and the dependence on source and chemical character. In addition, I study terrestrial-aquatic C linkages in temperate headwater-watersheds as part of the USGS Water, Energy, and Biogeochemical Budgets (WEBB) program.
3215 Marine Street, Suite E-127
Boulder, CO 80303
303-541-3084 - Fax
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