Accumulating evidence indicates that the functional rather than taxonomic composition of microbial communities is closely correlated to local environmental factors. While composting is a widely accepted practice, specific knowledge of how fungal functional groups interact during the composting process remains limited. To address this, the impact of the initial C/N ratio of composting material on fungal community was analyzed in order to reveal the succession of functional diversity. Compared with the raw materials, the final composting product significantly reduced the relative abundances of plant and animal pathogens. Abundances of plant and animal pathogens, as well as dung saprotrophs, were negatively correlated with compost maturity, while abundances of wood saprotrophs exhibited positive correlations. Specific OTUs that showing highly abundant in each treatment were expected to compete for environmental preferences (niches) and/or interact with each other in positive (facilitative) ways. OTU2 (wood saprotroph) exhibiting the highest occurrence was negatively related to OTU7 (animal pathogen) and OTU4 (plant pathogen) during the mesophilic phase. Taken together, high-efficiency composting is represented as pattern variations of fungal community with a process of gradual decline of plant and animal pathogens as well as dung saprotrophs.

越来越多的证据表明，微生物群落的功能而非分类组成与当地环境因素密切相关。尽管堆肥是一种被广泛接受的做法，但是关于真菌官能团在堆肥过程中如何相互作用的具体知识仍然有限。为了解决这个问题，分析了堆肥材料初始C / N比对真菌群落的影响，以揭示功能多样性的继承。与原料相比，最终的堆肥产品显着降低了动植物病原体的相对丰度。丰富的动植物病原体以及粪腐腐菌与堆肥成熟度呈负相关，而木质腐腐菌的丰度呈现出正相关。在每种治疗中表现出高度丰富的特定OTU有望竞争环境偏好（利基）和/或以积极（促进）方式相互影响。在中温期，表现最高的OTU2（木材腐生菌）与OTU7（动物病原体）和OTU4（植物病原体）负相关。综上所述，高效堆肥表现为真菌群落的模式变化，伴随着动植物病原体以及粪腐菌的逐渐减少。