Rapid economic development and accelerated urbanization in China has resulted in widespread atmospheric nitrogen (N) deposition. One consequence of N deposition is the altera-tion of mycorrhizal symbioses that are critical for plant resource acquisition (nitrogen, N, phos-phorus, P, water). In this study, we characterized the diversity, composition, and functioning of ectomycorrhizal (ECM) fungal communities in an urban-adjacent Pinus elliottii plantation under ambient N deposition (~24 kg N ha-1 year-1), and following N fertilization (low N, 5...