Fig. 1From: Tree and shrub richness modifies subtropical tree productivity by regulating the diversity and community composition of soil bacteria and archaeaSampling and experimental design. a Plots with tree species richness gradients (1, 2, 4) and shrub species richness gradients (0, 2, 4, 8) selected from BEF-China platform (site A, site B). b The tree species and their combinations used in this studyBack to article page