With the pollution of atmospheric nitrogen becoming more and more serious andthe increasing nitrogen enrichment in the farmland and non-farmland ecosystem,China has become the largest creator and emissions of nitrogen in the world. Theincreasing of atmospheric nitrogen deposition can aggravate the eutrophication incoastal areas, and can even induce the red tide. Therefore, to carry out a study ofatmospheric nitrogen deposition flux with a long periodand wide range has become anurgent demand for environmenta...