Fig. 2From: Influence of tree species on soil microbial residue accumulation and distribution among soil aggregates in subtropical plantations of ChinaBiomass of total PLFAs (a), bacteria (b), fungi (c), and fungi/bacteria ratio (d) in 0–20 cm soil layer of plantations of different tree species. Different lowercase letters indicate significant differences among tree species (p < 0.05). Values are mean ± SEBack to article page