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An Overview of Crop and Crop Residue Management Impacts on Crop Water Use and Runoff in the Canadian Prairies

by 1,2,* and 1
1
Department of Soil Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
2
Global Institute for Water Security, School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK S7N 3H5, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Renato Morbidelli
Water 2021, 13(20), 2929; https://doi.org/10.3390/w13202929
Received: 9 September 2021 / Revised: 4 October 2021 / Accepted: 15 October 2021 / Published: 19 October 2021
(This article belongs to the Special Issue Research on Cold Regions Hydrology)
Although crop and crop residue management practices are mainly used for increasing crop yield, they and the resulting changes in crop growth affect one or more hydrological components, including runoff. Based on published research in the Canadian Prairies, this paper reviews the effects of crop type, quantity of crops and crop residues, crop variability within landscapes, tillage, and stubble management practices on crop water use (termed including evaporation, transpiration and interception), snow trapping, and water infiltration, with the aim to discuss major impacts of crop and residue management on runoff. Rainfall runoff is influenced by rain interception and crop water use, and it can be reduced by choosing appropriate crop types, increasing above-ground biomass, or increasing coverage on the soil surface, activities which coincide with the farmer’s efforts of increasing crop productivity. However, although high stubble and reduced tillage for maintaining good residue cover help conserve soil moisture and improve soil health, they increase snowmelt runoff potential. The review emphasizes the need of future research to assess the agronomic and environmental trade-offs of crop residue management, the linkage between crop water use and runoff, and the impacts of crop and residue management on runoff across various temporal and spatial scales. View Full-Text
Keywords: crop management; crop residue management; crop water use; evaporation; interception; landscape variability; runoff; snow trapping; snow sublimation; transpiration crop management; crop residue management; crop water use; evaporation; interception; landscape variability; runoff; snow trapping; snow sublimation; transpiration
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MDPI and ACS Style

Liu, J.; Lobb, D.A. An Overview of Crop and Crop Residue Management Impacts on Crop Water Use and Runoff in the Canadian Prairies. Water 2021, 13, 2929. https://doi.org/10.3390/w13202929

AMA Style

Liu J, Lobb DA. An Overview of Crop and Crop Residue Management Impacts on Crop Water Use and Runoff in the Canadian Prairies. Water. 2021; 13(20):2929. https://doi.org/10.3390/w13202929

Chicago/Turabian Style

Liu, Jian, and David A. Lobb 2021. "An Overview of Crop and Crop Residue Management Impacts on Crop Water Use and Runoff in the Canadian Prairies" Water 13, no. 20: 2929. https://doi.org/10.3390/w13202929

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