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James B. Harsh

James Harsh

Professor Emeritus/Scientist

PO Box 646420
Pullman WA 99164-6420 USA
Phone 509-335-3650
FAX 509-335-8674



Ph.D. Soil Science, University of California, 1983
M.S. Soil Science, University of California, 1980
B.S. Conservation of Natural Resources, University of California, 1974

Curriculum Vitae (pdf)


Geobiology of mineral weathering; colloidal transport in soil; fate and transport of nutrients and contaminants; materials for soil and stormwater remediation. Learn more about Dr. Harsh’s research on using chemistry to sustain our soil.


Refereed Journal Articles

Grant, M.R., L.S. Tymon, G.L. Helms, L.S. Thomashow, C.K. Keller, and J.B. Harsh. 2016. Biofilm adaptation to iron availability in the presence of biotite and consequences for chemical weathering. Geobiology 14(6):588-598. doi:10.1111/gbi.12187.

Chahal, M.K., J.B. Harsh, and M. Flury. 2016. Translocation of fluoranthene in porous media by advancing and receding air–water interfaces. Colloids & Surfaces A: Physicochemical and Engineering Aspects 492:62-70.

Suliman, W., J.B. Harsh, N.I. Abu-Lail, A.-M. Fortuna, I. Dallmeyer, and M. Garcia-Perez. 2016. Influence of feedstock source and pyrolysis temperature on biochar bulk and surface properties. Biomass & Bioenergy 84: 37-48.

Dickson, J.O., J.B. Harsh, W.W. Lukens, and E.M. Pierce. 2015. Perrhenate incorporation into binary mixed sodalites: The role of anion size and implications for technetium-99 sequestration. Chemical Geology 395: 138-143. doi:10.1016/j.chemgeo.2014.12.009.

Aramrak, S., M. Flury, J.B. Harsh, and R.L. Zollars. 2014. Colloid Mobilization and Transport during Capillary Fringe Fluctuations. Environmental Science & Technology 48: 7272-7279. doi:10.1021/es501797y.

Dickson, J.O., J.B. Harsh, M. Flury, W.W. Lukens, and E.M. Pierce. 2014. Competitive Incorporation of Perrhenate and Nitrate into Sodalite. Environmental Science & Technology 48: 12851-12857. doi:10.1021/es503156v.

Shi, Z.Q., Z. Balogh-Brunstad, M. Grant, J. Harsh, R. Gill, L. Thomashow, et al. 2014. Cation uptake and allocation by red pine seedlings under cation-nutrient stress in a column growth experiment. Plant and Soil 378: 83-98. doi:10.1007/s11104-013-2016-2.


More publications (pdf)

News Articles

NSF grant Root slime helps plants eat rocks, sequester carbon

WSU researchers have received half a million dollars to study a microscopic slime that they believe plays an outsized role in life on the planet. The root biofilm is central to the earth’s balance of carbon, how soil is formed, the foundation of plant life and possibly the future of agriculture.

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