Dr. Ed Gregorich
Soil carbon and nitrogen cycling; regulation of fluxes of greenhouse gases, nutrients, and elements between the soil and the atmosphere, the biosphere, and aquatic systems; effects of changes induced by land management and agricultural practices on soil health.
Current research and/or projects
- Understanding mechanisms in the biological stabilization of soil carbon
- Managing carbon to promote soil productivity, health, and biodiversity in Canadian farmlands
- Sustainable crop production in Canada under climate change
- Supporting local food security by addressing challenges facing field production of vegetables in boreal and northern communities (collaborator)
- Use of legume crops to enhance N use efficiency, carbon sequestration, soil health and soil biodiversity in three ecoregions chosen to represent the different climatic conditions of Canada (collaborator)
- Elucidating and exploiting rhizosphere processes for improved soil health and productivity
- Inferring the influence of agricultural management and other human activities on soil constituents relevant to soil health and function
- Promoting soil carbon, biodiversity and health
Professional activities / interests
2006-present Adjunct Research Professor, Carleton University, Department of Geography & Environmental Studies
2005-2007 Chair, Soil Biology and Biochemistry Division, Soil Science Society of America
2002-2005 President, Canadian Society of Soil Science
2002-2006 Adjunct Professor, Queen’s University, Kingston, Ontario
2002-2005 Scientific advisor, US Consortium for Agricultural Soil Mitigation of Greenhouse Gases
2001 Member of Intergovernmental Panel on Climate Change (IPCC) Working Group II. Lead author of Chapter 15 - North America. IPCC Third Assessment Report
2000-2003 Secretary, Canadian Agricultural Research Committee – Greenhouse Gases and Carbon Sequestration
1994-1997 Adjunct Professor, McGill University, Montreal, Quebec
Education and awards
1989: Ph.D., Soil Science, University of Guelph, Guelph, Ontario
1984: M.Sc., Soil Science, University of Saskatchewan, Saskatoon, Saskatchewan
1982: B.Sc., Agriculture, University of Saskatchewan, Saskatoon, Saskatchewan
2008: Member of the Intergovernmental Panel on Climate Change (Geneva, Switzerland), which shared the 2007 Nobel Peace Prize with Al Gore for “their efforts to build up and disseminate greater knowledge about man-made climate change, and to lay the foundations for the measures that are needed to counteract such change.” Recognized by the IPCC and the Minister of Environment Canada for contributions to the IPCC as coauthor of chapters in two IPCC reports.
2007: Fellow, Soil Science Society of America
2007: Erskine Visiting Fellow, University of Canterbury, Christchurch, NZ
2006: Fellow, Canadian Society of Soil Science
1996: Agcellence Award, the highest Agriculture & Agri-Food Canada departmental award, for exceptional accomplishments
International experience and/or work
2006-2011 Canadian project coordinator of VIETCANSOL, a Canadian International Development Agency project involving on-farm adoption of soil and water conservation methods and introducing high-value crops in the mountainous zone of northern Vietnam
Zhang, Y., Li, X., Gregorich, E.G., McLaughlin, N.B., Zhang, X., Guo, Y., Liang, A., Fan, R., Sun, B., 2018. No-tillage with continuous maize cropping enhances soil aggregation and organic carbon storage in Northeast China. Geoderma 330: 204-211.
Beauchemin, S., Clemente, J.S., Thibault, Y., Langley, S., Gregorich, E.G., Tisch, B. 2018. Geochemical stability of acid-generating pyrrhotite tailings 4 to 5 years after addition of oxygen-consuming organic covers. Sci. Total Environ. 645:1643-1655.
Poeplau, C., Don, A., Six, J., Kaiser, M., Benbi, D., Chenu, C., Cotrufo, M., Derrien, D., Gioacchini, P., Grand, S., Gregorich, E., et al. 2018. Isolating organic carbon fractions with varying turnover rates in temperate agricultural soils – A comprehensive method comparison. Soil Biol. Biochem 125:10-26.
Zhang, L., Yang, X., Drury, C., Chantigny, M., Gregorich, E., Miller, J., Bittman, S., Reynolds, D., Yang, J. 2017. Infrared spectroscopy prediction of organic carbon and total nitrogen in soil and particulate organic matter from diverse Canadian agricultural regions. Can. J. Soil Sci 98: 183–191.
Yanni, S.F., Diochon, A., Helgason, B.L. Ellert, B.H., Gregorich, E.G. 2017. Temperature response of residue and soil organic matter decomposition in soils from different depths. Eur. J. Soil Sci. 69:325–335.
Morrison, M.J., Cober, E.R., Gregorich, E.G., Voldeng, H.D., Ma, B., Topp, G.C. 2018. Tillage and crop rotation effects on the yield of corn, soybean and wheat in eastern Canada. Can. J. Plant Sci. 98: 183-191. https://doi.org/10.1139/cjps-2016-0407.
Zhang, Y., Li, X., Gregorich, E.G., McLaughlin, N.B., Zhang, X., Guo, Y., Liang, A., Fan, R., Sun, B., 2018. No-tillage with continuous maize cropping enhances soil aggregation and organic carbon storage in Northeast China. Geoderma 330: 204-211. https://doi.org/10.1016/j.geoderma.2018.05.037
Beauchemin, S., Clemente, J.S., Thibault, Y., Langley, S., Gregorich, E.G., Tisch, B. 2018. Geochemical stability of acid-generating pyrrhotite tailings 4 to 5 years after addition of oxygen-consuming organic covers. Sci. Total Environ. 645:1643-1655. https://doi.org/10.1016/j.scitotenv.2018.07.261
Poeplau, C., Don, A., Six, J., Kaiser, M., Benbi, D., Chenu, C., Cotrufo, M., Derrien, D., Gioacchini, P., Grand, S., Gregorich, E., Griepentrog, M., Gunina, A., Haddix, M., Kuzyakov, Y., Kühnel, A., Macdonald, L.M., Soong, J., Trigalet, S., Vermeire, M-L., Rovira, P., van Wesemaell, B., Wiesmeier, M., Yeasmin, S., Yevdokimov, I., Nieder, R. 2018. Isolating organic carbon fractions with varying turnover rates in temperate agricultural soils – A comprehensive method comparison. Soil Biol. Biochem 125:10-26. https://doi.org/10.1016/j.soilbio.2018.06.025.
Gregorich, E.G., Janzen, H.H., Ellert, B.H., Helgason, B.L., Qian, B., Zebarth, B.J., Angers, D.A., Beyaert, R.P., Drury, C.F., Duguid, S., May, W.E., McConkey, B.G., Dyck, M.F. 2017. Litter decay controlled by temperature, not soil properties, affecting future soil carbon. Global Change Biology 23, 1725–1734. doi: 10.1111/gcb.13502
Yanni, S.F., Diochon, A., Helgason, B.L. Ellert, B.H., Gregorich, E.G. 2017. Temperature response of residue and soil organic matter decomposition in soils from different depths. Eur. J. Soil Sci. 69:325–335. http://dx.doi.org /10.1111/ejss.12508.
Peltre, C., Gregorich, E.G., Brun, S., Jensen, L.S., Magid, J. 2017. Repeated application of organic waste affects soil organic matter composition: Evidence from thermal analysis, FTIR-PAS, amino sugars and lignin biomarkers. Soil Biology & Biochemistry 104: 117-127. http://dx.doi.org/10.1016/j.soilbio.2016.10.016
Yanni, S.F., Janzen, H.H., Gregorich, E.G., Ellert, B.H., Larney, F.J., Olson, B.M., Zvomuya, F. 2016. Organic carbon convergence in diverse soils toward steady state: a 21-year field bioassay. Soil Sci Soc. Am. J. 80: 1653-1662. doi:10.2136/sssaj2016.07.0214
Gregorich, E.G., Gillespie, A.W., Beare, M.H., Curtin, D., Sanei, H. and Yanni, S. 2015. Evaluating biodegradability of soil organic matter by its thermal stability and chemical composition. Soil Biology & Biochemistry 91:182-191. doi:10.1016/j.soilbio.2015.08.032