Fig. 1From: Linking soil organic carbon mineralization to soil physicochemical properties and bacterial alpha diversity at different depths following land use changesContents of soil organic carbon and fractions of different land-use patterns at 0–20 cm and 20–40 cm soil depths. G, W, M, GW and GM represent ginkgo plantations, wheat–corn systems, metasequoia plantations, ginkgo–wheat–corn systems and ginkgo–metasequoia systems, respectively (values are the means ± standard deviations, n = 3). Different lowercase letters indicate significant differences among different land use patterns at the same soil depth (P < 0.05)Back to article page