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ARS Home » Midwest Area » Columbus, Ohio » Soil Drainage Research » Research » Research Project #441329

Research Project: Contribution of Legacy Phosphorus to Watershed Outcomes, Phase 2 - SWAT Modeling

Location: Soil Drainage Research

Project Number: 5080-13210-003-021-A
Project Type: Cooperative Agreement

Start Date: Dec 1, 2021
End Date: Nov 30, 2025

1. Improve legacy phosphorus simulation capabilities in the Soil and Water Assessment Tool (SWAT). 2. Evaluate scenarios and strategies for mitigating legacy phosphorus in Western Lake Erie Basin (WLEB) Watershed.

• Participate in the workshop organized by the SWAT developers team, and contribute to the discussions regarding model improvements. Assist the lead team in proposing SWAT source code modifications to improve simulation of Legacy P in WLEB and other watersheds of interest. • Work with the legacy phosphorus modeling community in general, and SWAT developers, in specific, to ensure that any improvements to the representation of legacy phosphorus processes are exchanged and incorporated in our field-scale SWAT model for the WLEB. • Using the improved SWAT model for the WLEB, evaluate the impacts of recommended watershed strategies for cost-effective mitigation of legacy P sources.