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ARS Home » Midwest Area » Ames, Iowa » National Laboratory for Agriculture and The Environment » Agroecosystems Management Research » Research » Research Project #434865

Research Project: Scenario Development to Achieve Iowa Nutrient Reduction Strategy Goals

Location: Agroecosystems Management Research

Project Number: 5030-13000-011-61-N
Project Type: Non-Funded Cooperative Agreement

Start Date: Jun 1, 2018
End Date: Dec 31, 2019

1. Review and update practice performance for nitrogen and phosphorus. 2. Incorporate best management practice implementation into nutrient reduction scenarios. 3. Identify maximum opportunities for nutrient reduction practice implementation. 4. Assess cost effectiveness of nutrient reduction scenarios. 5. Develop scenarios at the watershed scale.

Objective 1: A literature review of published studies since the development of the Iowa Nutrient Reduction Strategy would be completed to revise practice performance and cost data. Objective 2: This work involves documenting existing conservation practices so that their effectiveness can be estimated and credited towards achieving nutrient reduction goals. Aerial and shaded-relief imagery will be used to document existing practices in Iowa Water Quality Initiative (IWQI) watersheds that have active, state- and USDA-funded watershed improvement projects. Objective 3 would utilize ACPF software with results from Objective 2 to identify conservation practice placement opportunities for IWQI watersheds, considering placement of existing practices. Under Objective 4, practice effectiveness information would be used with results of Objective 3 to identify preferred practice placement scenarios in terms of cost and nutrient reduction. Under Objective 5, preferred scenarios will be identified and strategies to utilize these scenarios for watershed planning and stakeholder engagement will be developed and implemented.