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Comparison of precipitation and land runoff as sources of estuarine nitrogen
Authors:David L Correll  Deborah Ford
Institution:Chesapeake Bay Center for Environmental Studies, Smithsonian Institution, P.O. Box 28, Edgewater, Maryland 21037, U.S.A.
Abstract:The seasonal and year-to-year variation of bulk precipitation as a source of total N, nitrate and ammonia is reported for a 7-year period at the Rhode River, a subestuary of Chesapeake Bay, U.S.A. These values are placed in perspective by comparison with analogous nitrogen loading due to watershed discharges.Although year-to-year variations were important, in an average year about the same amount of readily available nitrogen entered the system via precipitation as entered in land runoff and, during the summer and fall, precipitation was the largest source.
Keywords:air pollution  ammonia  amines  watersheds  nitrates  nitrogen  Chesapeake Bay  Atlantic Coastal Plain
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