April, May and June are the peak months for nitrate-nitrogen discharge from the mississippi river into the gulf.
At the study sites, the spring (April, May, and June) FN nitrate-nitrogen flow typically comprised 40 and 50 per cent of the total annual FN nitrate-nitrogen flux. Using a new statistical technique, the Conservation Effects Assessment Project considers how nitrate-nitrogen behaviour changes over time. And generates flow-normalized estimates of nitrate concentration and flux unaffected by random variations in streamflow, changes in nitrate concentration and flux between 1980 and 2008 at eight sites in the Mississippi River basin were calculated.
These modifications might have negated the gains made by implementing conservation policies. Although nitrate -nitrogen concentration and flow increases may have been more significant without these strategies, conservation practices may still have had a favourable impact.
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