Gregorich, Edward, Ph.D.

• Research Publications
• Other Science Related Publications

Contact Information:

960 Carling Ave
Ottawa, Ontario K1A 0C6
Telephone: 613-759-1909
Fax: 613-759-1926
Email: ed.gregorich@agr.gc.ca

Areas of Expertise:

• efficient use of nitrogen
• effects of agricultural management practices on soil organic matter
• low input agricultural management practices
• agronomy
• sustainable crop production
• modelling soil organic matter dynamics
• soil carbon and nitrogen dynamics and resources
• agricultural soil quality
• soil science
• soil biochemistry

Current Projects:

• 110.5.1 National Network of Long-term Agroecosystem Studies
• Estimating net GHG emissions from whole farms
• Understanding processes of GHG emissions/removal - soil C

Research Publications:

2013:

• Diochon, A., Gregorich, E.G., and Tarnocai, C. (2013). "Evaluating the quantity and biodegradability of soil organic matter in some Canadian Turbic Cryosols.", Geoderma, 202-203, pp. 82-87. doi : 10.1016/j.geoderma.2013.03.013
• Liang, A.-Z., McLaughlin, N.B., Ma, B.-L., Gregorich, E.G., Morrison, M.J., Burtt, S.D., Patterson, B.S., and Evenson, L.I. (2013). "Changes in mouldboard plough draught and tractor fuel consumption on continuous corn after 18 years of organic and inorganic N amendments.", Energy, 52, pp. 89-95. doi : 10.1016/j.energy.2012.10.064
• Zhang, J.X., Xue, A.G., Cober, E.R., Morrison, M.J., Zhang, H.J., Zhang, S.Z., and Gregorich, E.G. (2013). "Prevalence, pathogenicity and cultivar resistance of Fusarium and Rhizoctonia species causing soybean root rot.", Canadian Journal of Plant Science, 93(2), pp. 221-236. doi : 10.4141/CJPS2012-223

2012:

• Clemente, J.S., Gregorich, E.G., Simpson, A.J., Kumar, R., Courtier-Murias, D., and Simpson, M.J. (2012). "Comparison of nuclear magnetic resonance methods for the analysis of organic matter composition from soil density and particle fractions.", Environmental Chemistry, 9(1), pp. 97-107. doi : 10.1071/EN11096
• VandenBygaart, A.J., Kroetsch, D.J., Gregorich, E.G., and Lobb, D.A. (2012). "Soil C erosion and burial in cropland.", Global Change Biology, 18(4), pp. 1441-1452. doi : 10.1111/j.1365-2486.2011.02604.x

2011:

• Gregorich, E.G., Lapen, D.R., Ma, B.-L., McLaughlin, N.B., and VandenBygaart, A.J. (2011). "Soil and Crop Response to Varying Levels of Compaction, Nitrogen Fertilization, and Clay Content.", Soil Science Society of America Journal, 75(4), pp. 1483-1492. doi : 10.2136/sssaj2010.0395
• Qian, B., Gregorich, E.G., Gameda, S.B., Hopkins, D.W., and Wang, X.L. (2011). "Observed soil temperature trends associated with climate change in Canada.", Journal of Geophysical Research Atmospheres, 116(Article D02106). doi : 10.1029/2010JD015012
• Sparrow, A.D., Gregorich, E.G., Hopkins, D.W., Novis, P.M., Elberling, B., and Greenfield, L.G. (2011). "Resource limitations to soil microbial activity in an Antarctic dry valley.", Soil Science Society of America Journal, 75(6), pp. 2188-2197. doi : 10.2136/sssaj2010.0303

2010:

• Carter, M.R. and Gregorich, E.G. (2010). "Carbon and nitrogen storage by deep-rooted tall fescue (Lolium arundinaceum) in the surface and subsurface soil of a fine sandy loam in eastern Canada.", Agriculture, Ecosystems and Environment, 136(1-2), pp. 125-132. doi : 10.1016/j.agee.2009.12.005
• Feng, X.-J., Simpson, A.J., Gregorich, E.G., Elberling, B., Hopkins, D.W., Sparrow, A.D., Novis, P.M., Greenfield, L.G., and Simpson, M.J. (2010). "Chemical characterization of microbial-dominated soil organic matter in the Garwood Valley, Antarctica.", Geomatica, 74(22), pp. 6485-6498. doi : 10.1016/j.gca.2010.08.019
• Ma, B.-L., Wu, T.-Y., Tremblay, N., Deen, W., Morrison, M.J., McLaughlin, N.B., Gregorich, E.G., and Stewart, G. (2010). "Nitrous oxide fluxes from corn fields: On-farm assessment of the amount and timing of nitrogen fertilizer.", Global Change Biology, 16(1), pp. 156-170. doi : 10.1111/j.1365-2486.2009.01932.x

2009:

• Beare, M.H., Gregorich, E.G., and St-Georges, P. (2009). "Compaction effects on CO₂ and N₂O production during drying and rewetting of soil.", Soil Biology & Biochemistry, 41(3), pp. 611-621. doi : 10.1016/j.soilbio.2008.12.024
• Bowen, S.R., Gregorich, E.G., and Hopkins, D.W. (2009). "Biochemical properties and biodegradation of dissolved organic matter from soils.", Biology and Fertility of Soils, 45(7), pp. 733-742. doi : 10.1007/s00374-009-0387-6
• Chan, C., Kay, B.D., and Gregorich, E.G. (2009). "Spatial variability in organic carbon stocks on level sites: Relation to vertical penetration of the A horizon.", Canadian Journal of Soil Science, 89(4), pp. 455-459. doi : 10.4141/CJSS08068
• Gregorich, E.G., Carter, M.R., Angers, D.A., and Drury, C.F. (2009). "Using a sequential density and particle-size fractionation to evaluate carbon and nitrogen storage in the profile of tilled and no-till soils in eastern Canada.", Canadian Journal of Soil Science, 89(3), pp. 255-267. doi : 10.4141/CJSS08034
• Hopkins, D.W., Sparrow, A.D., Gregorich, E.G., Elberling, B., Novis, P.M., Fraser, F., Scrimgeour, C., Dennis, P.G., Meier-Augenstein, W., and Greenfield, L.G. (2009). "Isotopic evidence for the provenance and turnover of organic carbon by soil microorganisms in the Antarctic dry valleys.", Environmental Microbiology, 11(3), pp. 597-608. doi : 10.1111/j.1462-2920.2008.01830.x
• Qian, B., Zhang, X., Gregorich, E.G., Chen, K., Feng, Y., O'Brien, T. (2009). "Observed long-term trends for agroclimatic conditions in Canada.", Journal of Applied Meteorology and Climatology, 49(4), pp. 604-618. doi : 10.1175/2009JAMC2275.1
• Sey, B.K., Manceur, M., Whalen, J.K., Gregorich, E.G., and Rochette, P. (2009). "Root-derived respiration and nitrous oxide production as affected by crop phenology and nitrogen fertilization.", Plant and Soil, 326(1), pp. 369-379. doi : 10.1007/s11104-009-0018-x

Other Science Related Publications:

2011:

• Nangia, V., Sunohara, M., Topp, E., Gregorich, E.G., Gottschall, N., Drury, C.F., Toussef, M.A., and Lapen, D.R. (2011). "Assessing field-scale effects of controlled tile drainage on N mass balance from corn and soybean fields in Eastern Ontario, Canada.", 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011.
• Nangia, V., Sunohara, M., Topp, E., Gregorich, E.G., Gottschall, N., Drury, C.F., and Lapen, D.R. (2011). "Measuring the effects of watertable management on soil greenhouse gas emissions from corn and soybean fields in Eastern Canada.", 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011.