Dr. Kirsten D. Hannam

Systems Agro-Ecologist

Examining water, carbon and nutrient dynamics within agro-ecosystems at a range of spatial scales

Education and awards

  • PhD, University of Alberta, 2006
  • MSc, University of British Columbia, 2002

Key publications

For a complete list of publications, please visit: AAFC Online

Hannam, K.D., Midwood, A.J., Neilsen, D., Forge, T.A., and Jones, M.J. 2019. Bicarbonates dissolved in irrigation water contribute to soil CO2 efflux. Geoderma. 337: 1097-1104.

Hannam, K.D., Venier, L., Deschamps, C., Hope, E., Jull, M., Kwiaton, M., McKenney, D., Rutherford, P.M., and Hazlett, P.W. 2018. Wood ash as a soil amendment in Canadian forests: what are the barriers to utilization? Can. J. For. Res. 48: 442-450.

Moinet, G.Y.K., Midwood, A.J., Hunt, J.E., Whitehead, D., Hannam, K.D., Jenkins, M., Brewer, M.J., Adams, M.A. and Millard, P. 2018. Estimates of rhizosphere priming effects are affected by soil disturbance. Geoderma 313: 1-6.

Hannam, K.D., Venier, L., Hope, E., McKenney, D., Allen, D. and Hazlett, P.W. 2017. AshNet: Facilitating the use of wood ash as a forest soil amendment in Canada. For. Chron. 93: 17-20.

Neilsen, G.H., Neilsen, D., Forge, T. and Hannam, K. 2017. Chapter 10: Advances in soil and nutrient management in apple cultivation. In: Achieving sustainable cultivation of apples. K. Evans (ed.) Burleigh Dodds Science Publishing.

Fentabil, M.M., Nichol, C.F., Jones, M.D., Neilsen, G.H., Neilsen, D., Hannam, K.D. 2016. Effect of drip irrigation frequency, nitrogen rate and mulching on nitrous oxide emissions in a semi-arid climate: An assessment across two years in an apple orchard. Agric. Ecosys. Environ. 235C: 242-252.

Quideau, S.A., McIntosh, A.C.S., Norris, C.E., Lloret, E., Swallow, M.J.B., Hannam, K.D. 2016. Extraction and analysis of microbial phospholipid fatty acids in soils. J. Vis. Exp. 114: e54360.

Hannam, K.D., Neilsen, G.H., Forge, T.A., Neilsen, D., Losso, I., Jones, M.D., Nichol, C.F., Fentabil, M.M. 2016. Irrigation practices, nitrogen amendments and mulches affect nutrient dynamics in a young Merlot (Vitis vinifera L.) vineyard. Can. J. Soil Sci. 96: 23-36.

Fentabil, M.M., Nichol, C.F., Neilsen, G.H., Hannam, K.D., Neilsen, D., Forge, T.A., Jones, M.D. 2016. Effect of micro-irrigation type, N-source and mulching on nitrous oxide emissions in a semi-arid climate: An assessment across two years in a Merlot grape vineyard. Agric. Wat. Manage. 171: 49-62.

Hannam, K.D., Kehila, D., Millard, P., Midwood, A.J., Neilsen, D., Neilsen, G.H., Forge, T.A., Nichol, C.F., Jones, M.D. 2016. Bicarbonates in irrigation water contribute to carbonate formation and CO2 production in orchard soils under drip irrigation. Geoderma 266: 120-126.

Hannam, K.D., Neilsen, G.H., Neilsen, D., Midwood, A.J., Millard, P., Zhang, Z., Thornton, B. Steinke, D. 2016. The amino acid composition of grape (Vitis vinifera L.) juice in response to applications of urea to the soil or foliage. Am. J. Enol. Vitic 67: 47-55.

Hannam, K.D., Neilsen, G.H., Neilsen, D. and Bowen, P. 2015. Cluster thinning as a tool to hasten ripening of wine grapes in the Okanagan Valley, British Columbia. Can. J. Plant Sci. 95: 103-113.

Hannam, K.D., Neilsen, G.H., Rabie, W.S., Neilsen, D., Midwood, A.J., Millard, P. 2014. Late-season foliar urea applications can increase berry yeast-assimilable nitrogen in wine grapes (Vitis vinifera L.). Am. J. Enol. Vitic. 65: 89-95.

Neilsen, G., Neilsen, D. Hannam, K., Millard, P. and Midwood, A. 2013. Foliar urea applications can increase berry yeast-assimilable N in wine (Vitis vinifera L.) grapes. Acta Hort. 984: 427-434.

Hannam, K.D., Neilsen, G.H., Forge, T. and Neilsen, D. 2013. The concentration of yeast assimilable nitrogen in Merlot grape juice is increased by N fertilization and reduced irrigation. Can. J. Plant Sci. 93: 37-45.

Berch, S.M., Curran, M., Dymond, C., Hannam, K., Murray, M., Tedder, S., Titus, B. and Todd, M. 2012. Criteria and guidance considerations for sustainable tree stump harvesting in British Columbia. Scand. J. For. Res. 27: 709-723.

Thiffault, E., Hannam, K.D., Paré, D., Titus, B.D., Hazlett, P.W., Maynard, D.G., and Brais, S. 2011. Effects of forest biomass harvesting on soil productivity in boreal and temperate forests – a review. Environ. Rev. 19: 278-309.

Cobb, T.P., Hannam, K.D., Kishchuk, B.E., Langor, D.W., Quideau, S.A., and Spence, J.R. 2010. Wood-feeding beetles and soil nutrient cycling in burned forests: implications of post-fire salvage logging. Agric. For. Entomol. 12: 9-18.

Thiffault, E, Hannam, K., Quideau, S., Paré, D., Bélanger, N., Oh, S.-W., and Munson, A.D. 2008. Chemical composition of forest floor and consequences for nutrient availability after wildfire and harvesting in the boreal forest. Plant Soil. 308: 37-53.

Hannam, K.D., Quideau, S.A. and Kishchuk, B.E. 2007. The microbial communities of aspen and spruce forest floors are resistant to changes in litter input and microclimate. Appl. Soil Ecol. 35: 635-647.

Hannam, K.D., Quideau, S.A. and Kishchuk, B.E. 2006. Forest floor microbial communities in relation to stand composition and timber harvesting in northern Alberta. Soil Biol. Biochem. 38: 2565-2575.

Hannam, K.D., Quideau, S.A., Kishchuk, B.E., Oh, S.-W. and Wasylishen, R.E. 2005. Forest floor chemical properties are altered by clearcutting in trembling aspen- and white spruce-dominated stands of the boreal mixedwood forest. Can. J. For. Res. 35: 2457-2468.

Redding, T.E., Hannam, K.D., Quideau, S.A. and Devito, K.D. 2005. Particle density of aspen, spruce and pine forest floors in Alberta, Canada. Soil Sci. Soc. Am. J. 69: 1503-1506.

Hannam, K.D., Quideau, S.A., Oh, S.-W., Kishchuk, B.E. and Wasylishen, R.E. 2004. Forest floor composition in aspen- and spruce-dominated stands of the boreal mixedwood forest. Soil Sci. Soc. Am. J. 68: 1735-1743.

Hannam, K.D. and Prescott, C.E. 2003. Soluble organic nitrogen in forests and adjacent clearcuts in British Columbia, Canada. Can. J. For. Res. 33: 1709-1718.

Simard, S.W. and Hannam, K.D. 2000. Effects of thinning overstory paper birch on survival and growth of interior spruce in British Columbia: implications for reforestation policy and biodiversity. For. Ecol. Manage. 129: 237-251.





  • Member, Canadian Society of Soil Science (CSSS)
  • Member, Soil Science Society of America (SSSA), American Society of Agronomy (ASA) & Crop Science Society of America (CSSA)
  • Adjunct, University of British Columbia - Okanagan