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Impact of Climate Change on Drainage Outflow and Water Quality in Eastern Canada
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: 9th International Drainage Symposium held jointly with CIGR and CSBE/SCGAB Proceedings, 13-16 June 2010 IDS-CSBE-100143.
Authors: Shadi Dayyani, Shiv Prasher, Ali Madani, Chandra Madramootoo
Keywords: Drainage outflow, Climate change, Nitrogen pollution
The potential effects of climate change on the drainage outflow and nitrogen pollution of a 4.2 ha tile-drained experimental field research facility located at St. Emmanuel, Quebec are predicted using the latest version of the DRAINMOD 6.0 model. Under the assumption of no change in land cover and land management, the model is applied in order to simulate annual, seasonal and monthly changes in flow and NO3-N loads under current and future climate conditions. The climate scenario under consideration in this study (1961 to 2100) is based on projections from the Canadian Regional Climate Model (CRCM). The simulation results from the CRCM model suggest an increase in temperature and precipitation in the region being studied. Those changes result in a considerable increase in simulated mean annual subsurface flow in the study area.