John  Baham
John Baham
Emeritus Professor, Soil Geochemistry

Current research areas emphasize: biogeochemical and mineralogical processes in seasonally reduced soils and riparian zones focusing on the mobility of P and the role of "green rust" minerals on water quality; management of viticultural soils.

OSU Campus
Department of Crop and Soil Science
3055 Ag & Life Sciences Bldg
Corvallis, OR 97331
United States
(541) 737-9576


ORE00318 Phosphorus Solubility and Availability in Wet Soils with Annual Cycles of Oxidation and Reduction
Selected Projects:

Selected Projects:

  1. Soil geochemistry
  2. Redox processes in seasonally reduced soils
  3. P cycling in soils
  4. Soil Compaction in Western Oregon Vineyards
  5. Biogeochemistry of Fe and Mn in a Seasonally Reduced Riparian Soil
  6. Purged Well
  7. "Growing Your Own Vegetables" - OSU Extension
  8. Soil Processes Journal Club



1980  Ph.D.  Soil Science, University of California, Riverside, CA
1975  B.S.  Chemistry (ACS), Sonoma State College, Rohnert Park, CA
Professional Experience:
1986-present  Associate Professor, Department of Soil Science, OSU.
1979-86  Assistant Professor, Department of Crop and Soil Science, OSU.
1975-79  Grad. Res. Assistant, Soil Sci. Dep., Univ. of California, Riverside

Professional Memberships:
Oregon Society of Soil Scientists
American Chemical Society
American Geophysical Union


Oktay, Y., K. Cromack, Jr., S.R. Radosevich, R.G. Wagner, and J.E. Baham. 200x. Comparison of fifth- and fifteenth-year growth responses of Douglas-fir to vegetation management (in preparation).

Dossa, E.L., J. Baham, M. Khouma, M. Sene, F. Kizito, and R.P. Dick. 200x. Phosphorus sorption and desorption characteristics of soils incubated with native shrub residues in semiarid Senegal (in preparation).

Grathoff, G.H., J. Baham, H.R. Easterly, P. Gassman, and R. Hugo. 2007. Mixed Valent Fe-films (Schwimmeisen) on the Surface of Reduced Ephemeral Pools. Clays and Clay Minerals 55:635-643.Oros,

Rogers, M., M.I. Dragila, and J. Baham. 2006. Effect of soil iron content on magnetometer survey’s ability to locate subsurface agricultural drainage pipes. Applied Engineering in Agriculture,. 22: 701-704.

Schreiner, R.P., Scagel, C.F., Baham, J. 2006. Nutrient Uptake and Allocation in a Mature Pinot Noir Vineyard in Oregon, USA. Hortscience. 41:336-345.

Dwire, K.A., J.B. Kaufman, and J. Baham. 2004. Plant biomass and species composition along an environmental gradient in montane riparian meadows. Oeclogia 139:309-317.

Wigington, P.J.,Jr., S.M. Griffith, J.A. Field, J.E. Baham, W.R. Horwath, J. Owen, J.H. Davis, S.C. Rain, and J.J. Steiner. 2003. Nitrate Removal Effectiveness of a Riparian Buffer along a Small Agricultural Stream in Western Oregon.J. Environ. Qual. 32: 162-170.

D.R., Mazurek, M.A., Baham, J.E, and B. Semoit. 2002. Organic Tracers from Wild Fire Residues in Soils and Rain/River Wash-Out.Water, Air, and Soil Pollution. 137: 203-235.

Abstracts and Presentations:

Grover, D., J. Baham, and M.I. Dragila. 2007. Precipitation of Iron Minerals in Porous Media. 2007 Fall Meeting of the American Geophysical Union, San Francisco, CA.

Cassidy, J.R., J.E. Baham, and M. Dragila. 2005. Amino-G:  Miracle Tracer… Conservative, High Solubility, Low Detectability, and Now, Reversible Signal Suppression at Low pH!!!  Western Soil Science Society Meeting, Ashland, Oregon.

Arighi, L., R. Haggerty, D.D. Myrold, J. Iverson, J.E. Baham, I.P. Madin, and J. Arendt. 2005. Nitrate attenuation in the Missoula Flood Deposits Aquitard (Willamette Silt) of the Willamette Valley, Oregon American Geophysical Union, Fall Meeting 2005, San Francisco. Abstract #H51A-0341

Schreiner, R.P., and J. Baham. 2003. Seasonal Dynamics of Mineral Uptake and Allocation in whole Pinot noir vines in a Red-Hill Soil over 2 Years. Final Report: Oregon Wine Advisory Board 2002-2003.

Grathoff, G.H., J. Baham, and C.D. Peterson. 2003.  Al, Fe, Si minerals in dunal soils near Newport, Oregon, USA.  Euroclay Modena, Italy, June 22-26, 2003.  p. 118

Grathoff, G.H., J. Baham, and C.D. Peterson. 2003. Authigenic Al, Fe, Si minerals of varying crystallinity in dunal soils near Newport, Oregon, USA; Clay Minerals Society Meeting June 6 to June 12, 2003 Athens GA. p. 68.