Fig. 2: Microbial composition and differential genera among treatments.

The relative abundance of soil a bacterial, b fungal, and c protistan communities under the six treatments. Volcano plots of the differential genera under the main effects of d litter addition, e litter removal, and f plant removal. The blue dots represent the up-regulated genera and the pink dots represent the down-regulated genera under each treatment. The square, circle, and triangle shapes represent genera belonging to the bacterial, fungal, and protistan communities.