Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with soil, crop and climatic variables

Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with... •Precipitation (P) and soil texture control N-induced N2O emission factors (EFs).•Perennial crop has a lower N-induced N2O EF than annual crop.•Soil N2O emissions can be quantified with P, soil and management variables. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agriculture, Ecosystems & Environment Elsevier

Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with soil, crop and climatic variables

Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with soil, crop and climatic variables

Agriculture, Ecosystems and Environment 254 (2018) 69–81 Contents lists available at ScienceDirect Agriculture, Ecosystems and Environment journal homepage: www.elsevier.com/locate/agee Research Paper Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with soil, crop and climatic variables a,1 b,⁎ c a d Philippe Rochette , Chang Liang , David Pelster , Onil Bergeron , Reynald Lemke , e b f b Roland Kroebel , Douglas MacDonald , Weikai Yan , Corey Flemming Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd., Sainte-Foy, Québec, G1V 2J3, Canada Pollutant Inventories and Reporting Division, Environment and Climate Change Canada, 351 St-Joseph Blvd., Gatineau, Québec, K1A 0H3, Canada International Livestock Research Institute, Box 30709, Nairobi, Kenya Saskatoon Research Centre, Agriculture and Agri-Food Canada, 51 Campus Drive, Saskatoon, Saskatchewan, S7N 5A8, Canada Lethbridge Research Centre, Agriculture and Agri-Food Canada, PO BOX 3000, 5403 1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Central Experimental Farm, 960 Carling Avenue, Ottawa, Ontario, K1A 0C6, Canada ARTICLE I NFO ABSTRACT Keywords: National scale emissions of nitrous oxide (N O) from agricultural soils are often estimated using a unique fer- Soil N O emissions 2 tilizer-induced emission factor (EF); thereby neglecting how factors other than nitrogen input could impact Soil texture emissions. In the present study, we compiled soil N O flux data collected since 1990 on agricultural soils in Growing season precipitation Canada, to identify key soil and climate factors, and management practices that explain variations in N O Synthetic N emissions and in EF. Stepwise regression analysis showed that the growing season precipitation was the most Organic N important factor impacting N O emissions, and that...
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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0167-8809
D.O.I.
10.1016/j.agee.2017.10.021
Publisher site
See Article on Publisher Site

Abstract

•Precipitation (P) and soil texture control N-induced N2O emission factors (EFs).•Perennial crop has a lower N-induced N2O EF than annual crop.•Soil N2O emissions can be quantified with P, soil and management variables.

Journal

Agriculture, Ecosystems & EnvironmentElsevier

Published: Feb 15, 2018

References

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