Causes of Upstream Wetland Loss on the Dead Zone in the Gulf of Mexico. Jonathan Burnett Jackie Comisso Travis Borrillo-Hutter Terra Michaels. Mississippi River Basin . Third largest river in the world.
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Third largest river in the world.
Drains over 3,200,000 km2 of freshwater, sediments, and nutrients to the Gulf of Mexico
One of the most productive agricultural regions in the country
Non-point source pollution
Point source pollution
Nitrate-nitrogen concentrations ( of Mexicoaverage±S.E.) in Olentangy River, Ohio and Mississippi River, Louisiana. Data for Olentangy River
in Columbus are based on 8 years of weekly sampling; data from Mississippi River are based on 7 years of monthly sampling at Caernarvon,
Nutrient Removal By Wetland Systems In The Midwest
Each year the Dead Zone grows the size of New Jersey (5,000 - 8,000 square miles )
The zone is 17-21 percent larger than 1985
From 1998 -2002 avg $270 million worth N fertilizer was flushed down the Mississippi River each spring.
In 2007 the federal mandate set targets for U.S. to blend 36 billion gallons of biofuels a year into fuel supply.