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The environmental and economic efficacy of on-farm beneficial management practices for mitigating soil-related greenhouse gas emissions in Ontario, Canada

Published online by Cambridge University Press:  23 November 2020

Sandra F. Yanni Open the ORCID record for Sandra F. Yanni [Opens in a new window] ,
Aaron De Laporte Open the ORCID record for Aaron De Laporte [Opens in a new window] ,
Predrag Rajsic ,
Claudia Wagner-Riddle  and
Alfons Weersink
Sandra F. Yanni
Affiliation:
School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
Aaron De Laporte
Affiliation:
Department of Food, Agricultural and Resource Economics, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
Predrag Rajsic
Affiliation:
Department of Food, Agricultural and Resource Economics, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
Claudia Wagner-Riddle
Affiliation:
School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
Alfons Weersink*
Affiliation:
Department of Food, Agricultural and Resource Economics, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
*
Author for correspondence: Alfons Weersink, E-mail: aweersin@uoguelph.ca
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Abstract

Agriculture is a large source of greenhouse gas (GHG) emissions but changing management practices to those more beneficial to the environment could help mitigate climate change as long as they are economically and environmentally viable. This study examines the environmental (public) and economic (private) effects of adopting ten different beneficial management practices on a representative corn farm in Ontario, Canada. The study integrates changes in GHG emissions in carbon equivalents (CO2e) and changes in profit from changes in costs and revenues in two dimensions to reveal the scope and scale of different kinds of practices. 4R nitrogen management practices are smaller in scale compared to cropping practices and, therefore, have smaller potential costs and benefits. Land use changes, from practices including biomass, afforestation, crop rotation and cover cropping, have larger impacts on soil sequestration and carbon-equivalent GHG reduction, but with significantly greater costs. Seven practices were found to, at least partially, be economically and environmentally beneficial. The adoption of no-till and N-rate reduction is firmly positive, whereas the production of biomass has the largest potential economic and environmental gains. Crop rotation and diversification and cover cropping can be mutually beneficial, as can changing N-application practices. The use of inhibitors may be economically beneficial if yield gains outweigh purchase costs.

Keywords

Beneficial management practicegreenhouse gas emission mitigationintegrated environmental and economic analysis
Type
Review Article
Information
Renewable Agriculture and Food Systems , Volume 36 , Issue 3 , June 2021 , pp. 307 - 320
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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Footnotes

*

Current address: Department of Agriculture, Faculty of Agricultural and Food Sciences, American University of Beirut, Riad El-Solh, Beirut 1107 2020, Lebanon.

**

Current address: Department of Economics, University of Waterloo, Hagey Hall Building, 200 University Avenue West, Waterloo, ON, Canada N2L 3G1.

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