Figure 2 | Scientific Reports

Figure 2

From: Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a 13C analysis

Figure 2

Fluctuation of δ13C (‰) values of soil organic carbon (SOC) in M-POM (250–2000 μm), m-POM (53–250 μm), and Clay + silt (<53 μm) fractions under cropland and different fallow period sites through the soil profile in eastern Cameroon. Bars indicate the standard error (N = 4). *Indicates the significant differences for the land management of each soil depth, according to ANOVA (P < 0.05).

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