20th century,global nitrogen deposition exacerbated by human activities has led to the degra-dation of ecosystem functions and the loss of biodiversity worldwide.Nitrogen deposition has become an important factor in global change and has significantly affected biological populations and communi-ties.This paper reviews the effects of atmospheric nitrogen addition on insect population and commu-nity function by altering soil microbial and vegetation composition,with an emphasis on the responses of alien and indigenous species to nitrogen addition.Exogenous nitrogen addition has a cascade effect on insects mainly through the food network effect.Short-term low nitrogen addition has a positive ef-fect on the population of indigenous species,while long-term high nitrogen addition can inhibit the growth of indigenous population,reduce the diversity of the biological community,destroy the stability of the ecosystem,and consequently lead to change in ecosystem function.Alien insects were more sensi-tive to nitrogen addition,and the population of alien insects increased faster under nitrogen addition,which accelerated the invasive process of alien species.
atmospheric nitrogen depositioninsect populationinsect community structureecological functioninvasive species
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