Nitrogen deposition is an important environmental factor affecting terrestrial ecosystems. Arbuscular mycorrhizal fungi (AMF), as a kind of widespread soil microbes, which symbiosis with most terrestrial plants, and significantly affected plant growth, nutrient uptake and resistance to stress conditions. Based on the problem of soil salinization increased salinity songnen plain soil and the current status of atmospheric nitrogen deposition, this research used Leymus chinensis and Glomus mosseae as the exper...