Mycorrhizal Network Disruption Coupled with Nitrogen Deposition Synergistically Drives Woody Debris Decompositio

Anthropogenic nitrogen (N) deposition and mycorrhizal network disruption are key threats to forest carbon cycling. However, their interactive effects on woody debris decomposition remain poorly understood. We conducted a 730-day factorial field experiment in a temperate Korean pine mixed forest in northeastern China, combining N addition (50 kg N·ha-1·a-1) and root trenching to investigate their individual and synergistic effects on wood decomposition and fungal community dynamics.. These results highlight the importance of integrating biotic-abiotic interactions and temporal dynamics when predicting forest carbon cycling under global change, with significant implications for forest management in N-saturated regions.