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Hypoxia in the Gulf of Mexico
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USGS Info on MRB Nutrients
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Mississippi River Basin Nutrient Modeling
Estimated nitrogen export (kg/km2/yr) for watersheds of the conterminous United States.
Modeling Nutrient Sources and Loads and Delivery to the Gulf of Mexico
(SPARROW Model)
Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico
Atmospheric Nitrogen Flux From the Watersheds of Major Estuaries of the United States: An Application of the SPARROW Watershed Model
Nitrogen in the Mississippi Basin Estimating Sources and Predicting Flux to the Gulf of Mexico
(Fact Sheet 135-00)