Dr. Andrew VanderZaag

Image Andrew VanderZaag
Research Scientist

Scientist based at the Central Experimental Farm in Ottawa, Ontario. Lead and collaborate on research projects related to:

  • Methane emissions, Biogas
  • Nitrous oxide emissions
  • Water use efficiency
  • Decentralized wastewater treatment
  • Agricultural meteorology
  • Agricultural sustainability

Current research and/or projects

  • Understanding methane emissions from liquid manure storage across Canada (AAFC internal funds)
  • Water use efficiency in dairy farming (AAFC & Dairy Farmers of Canada)
  • Environmental aspects of biogas (AAFC & industry funds)
  • Environmental efficiency of dairy cropping systems (collaborator)
  • Ammonia emissions from manure management (collaborator)
  • Carbon and water fluxes from cropping systems (collaborator)
  • Nitrous oxide emissions during spring thaw (collaborator)

Education and awards

  • PhD, Biological Engineering (Dalhousie, 2009)
  • BSc, Environmental Sciences (Guelph, 2003)

International experience and/or work

Greenhouse gas emissions in Cameroon

Key publications

For a complete list of publications, please visit: Google Scholar Page, or Scopus

He, W., Grant, B.B., Smith, W.N., VanderZaag, A.C., Piquette, S., Qian, B., Jing, Q., Rennie. T.J., Jégo, G., and Deen, B. (2019) Assessing alfalfa production under historical and future climate in eastern Canada: DNDC model development and application. Environmental Modelling & Software 122:104540

VanderZaag, A.C., Baldé, H., Habtewold, J., Le Riche, E.L., Burtt, S., Dunfield, K., Gordon, R., Jenson, E., and Desjardins, R. (2019) Intermittent agitation of liquid manure: effects on methane, microbial activity, and temperature in a farm-scale study. Journal of the Air and Waste Management Association 69(9):1096-1106

Jayasundara, S., Worden, D., Weersink, A., Wright, T., VanderZaag, A.C., Gordon, R., Wagner-Riddle, C. (2019) Improving farm profitability also reduces the carbon footprint of milk production in intensive dairy production systems. Journal of Cleaner Production 229:1018-1028

Quesnel, J., VanderZaag, A.C., Crolla, A., Kinsley, C., Gregorich, E.G., Wagner-Riddle, C. (2019) Surface and subsurface N2O losses from dairy cropping systems. Nutrient Cycling in Agroecosystems 114(3):277-293

Ngwabie, N.M., Ngwa, D., Njuasu, C., Chenwi, T., Yengong, F., and VanderZaag, A.C. (2019) Assessing greenhouse gase emissions from outdoor cattle sleeping areas in Cameroon. Scientific African 4:e00088

Baldé, H., VanderZaag, A.C., Smith, W.N., and Desjardins, R. (2019) Ammonia emissions measured using two different GasFinder open-path lasers. Atmosphere 10(5):261

Sokolov, V., VanderZaag, A.C., Habtewold, J., Dunfield, K., Wagner-Riddle, C., Venkiteswaran, J.J., and Gordon, R. (2019) Greenhouse gas mitigation through dairy manure acidification. Journal of Environmental Quality 48:1435-1443

Rennie, T., Gordon, R., Smith, W., and VanderZaag, A.C. (2018) Liquid manure storage temperature is affected by storage design and management practices---A modelling assessment. Agriculture, Ecosystems & Environment 260:47-57

Ngwabie, N.M., Acobta, A.N., Manga, V.E., and VanderZaag, A.C. (2018) Emission factors of greenhouse gases from layer and broiler barns in Cameroon. Atmospheric Environment 176:54-59

VanderZaag, A.C. (2018) On the systematic underestimation of methane conversion factors in IPCC guidance. Waste Management  75:499-502

VanderZaag, A.C., Burtt, S., Vergé, X., Piquette, S., Wright, T., Kroebel, R., and Gordon, R. (2018) Case study: Water budget of a dairy farm with a tie-stall barn for milk cows and summer pasturing of heifers and dry cows. The Professional Animal Scientist 34(1):108-117

Habtewold, J., Gordon, R., Sokolov, V., VanderZaag, A.C., Wagner-Riddle, C., and Dunfield, K. (2018) Targeting bacteria and methanogens to understand the role of residual slurry as an inoculant in stored liquid dairy manure. Applied and Environmental Microbiology 84(7):e02830-17

Evans, L., VanderZaag, A.C., Sokolov, V., Baldé, H., MacDonald, J.D., Wagner-Riddle, C., and Gordon, R. (2018) Ammonia emissions from the field application of liquid dairy manure after anaerobic digestion or mechanical separation in Ontario, Canada. Agricultural and Forest Meteorology 258:89-95

VanderZaag, A.C., Baldé, H., Crolla, A., Gordon, R.J., Ngwabie, N.M., Wagner-Riddle, C., Desjardins, R., and MacDonald, J.D. (2018) Potential methane emission reductions for two manure treatment technologies. Environmental Technology 39(7):851-858

Jarecki, M., Grant, B., Smith, W., Deen, B., Drury, C., VanderZaag, A.C., Qian, B., Yang, J., and Wagner-Riddle, C. (2018) Long-term Trends in Corn Yields and Soil Carbon under Diversified Crop Rotations. Journal of Environmental Quality 47(4):635-643

Maldaner, L., Wagner-Riddle, C., VanderZaag, A.C., Gordon, R., and Duke, C. (2018) Methane emissions from storage of digestate at a dairy manure biogas facility. Agricultural and Forest Meteorology 258:96-107

Habtewold, J., Gordon, R., Sokolov, V., VanderZaag, A.C., Wagner-Riddle, C., and Dunfield, K. (2018) Reduction in Methane Emissions From Acidified Dairy Slurry Is Related to Inhibition of Methanosarcina Species. Frontiers in Microbiology 9:2806

Desjardins, R.L., Worth, D.E., Pattey, E., VanderZaag, A.C., Srinivasan, R., Mauder, M., Worthy, D., Sweeney, C., and Metzger, S. (2018) The challenge of reconciling bottom-up agricultural methane emissions inventories with top-down measurements. Agricultural and Forest Meteorology 248:48-59

Guest, G.M., Smith, W.N., Grant, B., McConkey, B.G., Chipanshi, A., Reid, K., Kröbel, R., Martel, M., Desjardins, R.L., VanderZaag, A.C., Pattey, E., Glenn, A., Wilson, H., Baldé, H., Wagner-Riddle, C., Drury, C.F., Fuller, K., Hayashi, M., and Reynolds, W. (2018) Comparing the performance of the DNDC, Holos and VSMB models for predicting the water partitioning of various crops and sites across Canada. Canadian Journal of Soil Science 98(2):212-231

Ngwabie, N.M., Wirlen, Y.L., Yinda, G.S., and VanderZaag, A.C. (2018) Quantifying greenhouse gas emissions from municipal solid waste dumpsites in Cameroon. Waste Management https://doi.org/10.1016/j.wasman.2018.02.048

Dutta, B., Grant, B.B., Congreves, K.A., Smith, W.N., Wagner-Riddle, C., VanderZaag, A.C., Tenuta, M., and Desjardins, R.L. (2018) Characterising effects of management practices, snow cover, and soil texture on soil temperature: Model development in DNDC. Biosystems Engineering 168:54-72

Habtewold, J., Gordon, R., Voroney, P., Sokolov, V., VanderZaag, A.C., Wagner-Riddle, C., and Dunfield, K. (2018) Sodium Persulfate and Potassium Permanganate Inhibit Methanogens and Methanogenesis in Stored Liquid Dairy Manure. Journal of Environmental Quality 47:786-794

Baldé, H., VanderZaag, A.C., Burtt, S.D., Wagner-Riddle, C., Evans, L., Gordon, R., Desjardins, R.L., and MacDonald, J.D. (2018) Ammonia emissions from liquid manure storages are affected by anaerobic digestion and solid-liquid separation. Agricultural and Forest Meteorology 258:80-88

Vergé, X., VanderZaag, A.C., Desjardins, R.L., and McConkey, B. (2018) Synergistic effects of complementary production systems help reduce livestock environmental burdens. Journal of Cleaner Production 200:858-865

Taki, R., Wagner-Riddle, C., Parkin, G., Gordon, R., and VanderZaag, A.C. (2018) Comparison of two gap-filling techniques for nitrous oxide fluxes from agricultural soil. Canadian Journal of Soil Science 99(0):1-13

Smith, W., Qi, Z., Grant, B., VanderZaag, A.C., and Desjardins, R. (2018) Comparing hydrological frameworks for simulating crop biomass, water and nitrogen dynamics in a tile drained soybean-corn system: Cascade vs. computational approach. Journal of Hydrology X 2:100015

Fillingham, M., VanderZaag, A.C., Burtt, S., Baldé, H., Ngwabie, N.M., Smith, W., Hakami, A., Wagner-Riddle, C., Bittman, S., and MacDonald, J.D. (2017) Greenhouse gas and ammonia emissions from production of compost bedding on a dairy farm. Waste Management 70:45-52

Fillingham, M., VanderZaag, A.C., Singh, J., Burtt, S., Crolla, A., Kinsley, C., and MacDonald, J.D. (2017) Characterizing the performance of gas-permeable membraes as an ammonia recovery strategy from anaerobically digested dairy manure. Membranes 7(4),59

VanderZaag, A.C., Baldé, H., Crolla, A., Gordon, R., Ngwabie, N.M., Wagner-Riddle, C., Desjardins, R., and MacDonald, J.D. (2017) Potential methane emission reductions for two manure treatment technologies. Environmental Technology     http://dx.doi.org/10.1080/09593330.2017.1313317

Wagner-Riddle, C., VanderZaag, A.C., Jaysundara, S., and Congreves, K. (2017) Mitigation of greenhouse gas emissions from the whole farm. CAB Reviews 12(044):1-10

Bosak, V., VanderZaag, A.C., Crolla, A., Kinsley, C., Miller, S.S., Chabot, D., and Gordon, R. (2017) Treatment of potato farm wastewater with coagulation. Applied Engineering in Agriculture 33(1):95-101

Baldé, H., VanderZaag, A.C., Burtt, S.D., Evans, L., Wagner-Riddle, C., Desjardins, R.L., and MacDonald, J.D. (2016). "Measured versus modeled methane emissions from separated liquid dairy manure show large model underestimates.", Agriculture, Ecosystems and Environment, 230, pp. 261-270

Baldé, H., VanderZaag, A.C., Burtt, S.D., Wagner-Riddle, C., Crolla, A., Desjardins, R.L., and Macdonald, D.J. (2016). "Methane emissions from digestate at an agricultural biogas plant.", Bioresource Technology, 216, pp. 914-922

Bosak, V.K., VanderZaag, A.C., Crolla, A., Kinsley, C., Chabot, D., Miller, S.S., and Gordon, R.J. (2016). "Treatment of potato farm wastewater with sand filtration.", Environmental Technology, 37, pp.1597-1604

Robinson, A.D., Gordon, R.J., VanderZaag, A.C., Rennie, T.J., and Osborne, V.R. (2016). "Usage and attitudes of water conservation on Ontario dairy farms.", Professional Animal Scientist, 32(2), pp. 236-242. doi : 10.15232/pas.2015-01468

Schwager, E.A., VanderZaag, A.C., Crolla, A., Kinsley, C., Wagner-Riddle, C., and E. Gregorich. (2016) Field nitrogen losses induced by application timing of digestate from dairy manure biogas production. Journal of Environmental Quality, 45, pp.1-9

Watt, D., Rochette, P., VanderZaag, A.C., Strachan, I.B., and Bertrand, N. (2016). "Impact of the oasis effect on wind tunnel measurements of ammonia volatilization from urea.", Canadian Journal of Soil Science, 96, pp.485-495

Gebrehanna, M.M., Gordon, R.J., Madani, A., VanderZaag, A.C., and Wood, J.D. (2014). "Silage effluent management: A review.", Journal of Environmental Management, 143, pp. 113-122

VanderZaag, A.C., MacDonald, J.D., Evans, L., Vergé, X.P.C., and Desjardins, R. (2013) Towards a methane emission inventory that is responsive to changes on Canadian farms. Environmental Research Letters 8(3) 035008 13pp.

Vergé, X.P.C., Maxime, D., Dyer, J.A., Desjardins, R.L., Arcand, Y., and VanderZaag, A.C. (2013) Carbon footprint of Canadian dairy products: Calculations and issues. Journal of Dairy Science, 96(9), pp. 6091-6104

VanderZaag, A.C., Jayasundara, S., and Wagner-Riddle, C. (2011) Strategies to mitigate nitrous oxide emissions from land applied manure. Animal Feed Science and Technology 166-167:464-479

VanderZaag, A.C., Gordon, R., Burton, D., Jamieson, R., and Stratton, G. (2010) Permeable synthetic covers for controlling emissions from liquid dairy manure. Applied Engineering in Agriculture 26:287-297

VanderZaag, A.C., Gordon, R., Glass, V., and Jamieson, R. (2008) Floating covers to reduce gas emissions from liquid manure storages: A Review. Applied Engineering in Agriculture 24(5):657-671.

Research facility

960 Carling Avenue
Ottawa, ON K1A 0C6


Adjunct Professor:

  • University of Guelph
  • Wilfrid Laurier University
  • Carleton University
  • University of Bamenda