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The Efficacy Of Best Management Practices On Peak Discharge And Contaminant Loads In Agricultural Drainage Systems, Blue Earth River Watershed, South-Central Minnesota, Usa, Zach Hilgendorf
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Conversion of native land cover to row crop agriculture and anthropogenically modified hydrology, correlates with increases in peak discharge, annual discharge, sediment and nutrient loads in agricultural land-use dominated watersheds within the Mississippi River basin. This results in environmental issues related to turbidity, eutrophication-hypoxia, loss of biodiversity, natural resource degradation, reduction in tourism, and more. In no place is this more obvious than the ever-growing "Dead Zone" in the Gulf of Mexico. The Minnesota River basin, the largest tributary to the Mississippi River in Minnesota, is a disproportionately large contributor of sediment (~80-90%), nitrogen (~56%), and phosphorus (~45%) to the …