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Water Retention Beneficial Management Practices
The report details a spatial targeting strategy for phosphorus reduction in the Canadian Prairies, using the Swan Lake study area as a pilot. It integrates the PTMApp model with HEC-HMS and HEC-RAS to account for regional hydrological specifics, such as spring runoff and non-contributing areas. Key findings highlight that default PTMApp settings may overestimate BMP efficiency during spring runoff and that high-quality land-use data is critical to avoid significant errors in nutrient load estimates. The report also discusses the practical application of these models for government and First Nations stakeholders, emphasizing the value of local knowledge and the need for compensation programs to encourage BMP adoption on high-value cropland.
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Document type: Report