Claire Phillips
Courtesy Faculty, Crop and Soil Science
OSU Campus
Department of Crop and Soil Science
Research Soil Scientist, USDA-ARS
USDA-ARS FSCRU 3450 SW Campus Way
Corvallis, OR 97331
United States


Research in global change and land use impacts on forests and soils, natural and anthropogenic greenhouse gas emissions, carbon storage and sequestration.


Courses Taught (previous):

SUS 102/SUS 102E: Introduction to Environmental Science and Sustainability

NR 350: Sustainable Communities


Select Publications:

Phillips, C.L., Murphy, V., Lajtha, K., Gregg, J. Warming related increases in soil CO2 efflux did not deplete soil carbon stocks in an Oregon grassland. (in review) Global Change Biology

Phillips, C.L., McFarlane, K.J., LaFranchi, B., Desai, A.E., Miller, J.B., Lehman, S.J. Observations of 14CO2 in ecosystem respiration from a temperate deciduous forest in Northern Wisconsin. (2015) Journal of Geophysical Research-Biogeosciences, DOI: 10.1002/2014JG002808

Lavoie, M., Phillips, C.L., Risk, D. A practical approach for uncertainty quantification of high frequency soil respiration using Forced Diffusion chambers. (2015) Journal of Geophysical Research—Biogeochemistry, DOI: 10.1002/2014JG002773

Taylor, A.J., Lai, C-T., Hopkins, F.M., Wharton, S., Bible, K., Xiaomei, X., Phillips, C.L., Bush, S., Ehleringer, J.R. Radiocarbon-based partitioning of soil respiration in an old-growth coniferous forest. (2015) Ecosystems. DOI: 10.1007/s10021-014-9839-4

Egan, J., Nickerson, N.R., Phillips, C.L., Risk, D. A numerical examination of soil 14CO2 chamber methodologies for sampling at the soil surface. (2014) Radiocarbon, Vol.56, Nr.4, p.1-14, DOI:10.2458/56.17771

Phillips, C.L., McFarlane, K.J., Risk, D., Desai, A.E. Biological and physical influences on soil 14CO2 seasonal dynamics in a temperate hardwood forest (2013) Biogeosciences, 10, 7999-8012, doi:10.5194/bgd-10-10721-2013

Risk, D., McArthur, G.S., Nickerson, N.R., Phillips, C.L., Hart, C.J., Egan, J., Lavoie, M. Bulk and isotopic characterization of biogenic CO2 sources and variability in the Weyburn injection area (2013). International Journal of Greenhouse Gases, 16: S263-S75

Phillips, C.L., Kluber, L., Pedersen, J., Caldwell, B.A., Bond, B.J. Contributions of Ectomycorrhizal Fungal Mats to Forest Soil Respiration. (2012) Biogeosciences, 9, 2099-2110: doi: 10.5194/bg-9-2099-2012

Risk, D., Nickerson, N., Phillips, C.L., Bourlon, E., Kellman, L., Moroni, M. (2012) Drought alters respired d13CO2 from autotrophic, but not heterotrophic soil respiration. Soil Biology and Biochemistry, 50, 26:32, doi:10.1016/j.soilbio.2012.01.025

Martin, J., Phillips, C.L., Irvine, J., Schmidt, A., Law, B.E. (2012) High Frequency Analysis of the Complex Linkage between Soil CO2 Fluxes, Photosynthesis, and Environmental Variables. Tree Physiology, doi: 10.1093/ treephys/tpr134

Righetti, T.L., Dalthorp, D., Lambrinos, J., Strik, B., Sandrock, D., Phillips, C.L. (2012) Scaling confounds the interpretation of isotopic data. International Journal of Environmental Analytical Chemistry, 92:1, 1-27, doi: 10.1080/03067319.2010.522236

Phillips, C.L., Gregg, J., Wilson, J. (2011) Reduced diurnal temperature does not alter warming impacts on ecosystem carbon balance of Mediterranean grassland mesocosms. Global Change Biology, 17: 3263-3273, doi: 10.1111/j.1365-2486.2011.02483.x

Phillips, C.L., Nickerson, N., Risk, D., Bond, B.J. (2011) Interpreting diel hysteresis between soil respiration and temperature. Global Change Biology, 17: 515-527, doi: 10.1111/j.1365-2486.2010.02250.x

Phillips, C.L., Nickerson, N., Risk, D., Kayler, Z., Andersen, C., Mix, A.C., Bond, B.J. (2010) Soil Moisture Effects on the Carbon Isotopic Composition of Soil Respiration. Rapid Communications in Mass Spectrometry, 24:1271-1280

Pypker,T.G., Hauck, M., Sulzman, E.W., Unsworth, M.H., Mix, A.C., Kayler, Z., Conklin, D., Kennedy, A.M., Barnard, H.R., Phillips, C.L., Bond, B.J. (2008) Toward using d13C of ecosystem respiration to monitor canopy physiology in complex terrain. Oecologia, 158(3):399-410

Los Huertos, M., Phillips, C.L., Shennan, C. 2006. Land use and Phosphorous Levels in the Elkhorn Slough and Pajaro River Watersheds. The Center for Agroecology and Sustainable Food Systems, Research Brief #8, University of California Santa Cruz.