Iowa Geological and Water Survey (IGWS) View Institution's Website 1 article published in JoVE Biology Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm Sergey Rabotyagov1, Todd Campbell2, Adriana Valcu2, Philip Gassman2, Manoj Jha3, Keith Schilling4, Calvin Wolter4, Catherine Kling2 1School of Environmental and Forest Sciences, University of Washington, 2Center for Agricultural and Rural Development, Department of Economics, Iowa State University, 3Department of Civil, Architectural, and Environmental Engineering, North Carolina A&T University, 4Iowa Geological and Water Survey This work demonstrates an integration of a water quality model with an optimization component utilizing evolutionary algorithms to solve for optimal (lowest-cost) placement of agricultural conservation practices for a specified set of water quality improvement objectives. The solutions are generated using a multi-objective approach, allowing for explicit quantification of tradeoffs.