Elevated atmospheric nitrogen(N) deposition,as important part of global change,reflects atmospheric reactive N pollution induced by accelerated human activities and has significantly impacted global terrestrial and aquatic ecosystems.In this mini-review,we introduced the concept and study approaches of atmospheric N deposition and summarized the major progress on the forms and amounts of N deposition as well as its impact on aquatic,forest and agricultural ecosystems.Finally,the shortcomings and outlook of the research area(in particular ecological impacts of N deposition) were also discussed in the paper.
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