Effects of Picea asperata ectomycorrhizal/external mycelium mediation on soil microbial community diversity in subalpine forest ecosystems of western Sichuan, China

Soil microorganisms are important players in carbon and nutrient cycling in forest ecosystems. Picea asperata (Pinaceae) is a tree that forms symbiotic associations with ectomycorrhizal (ECM) fungi. Therefore, it is necessary to understand the effect of ectomycorrhizal/external mycelium mediation on the diversity of soil microbial communities.

土壤微生物是森林生态系统碳循环与养分循环的关键参与者。粗枝云杉（*Picea asperata*，松科Pinaceae）是一类可与外生菌根（ectomycorrhizal, ECM）真菌形成共生关系的树种。因此，明确外生菌根/外部菌丝介导过程对土壤微生物群落多样性的影响具有重要意义。