Fig. 1From: Linkage of microbial living communities and residues to soil organic carbon accumulation along a forest restoration gradient in southern ChinaVariations of SOC stock (dotted line) and SOC contents (bar) following forest restoration. Different uppercase and lowercase letters indicate significant differences in topsoil (grey bar) and subsoil (white bar) between the four restoration stages at the P < 0.05 level. Symbols and bars represent means ± SE (n = 6)Back to article page