Fig. 2From: Soil organic matter quality along rotations in acacia and eucalypt plantations in the Congolese coastal plainsDry weight (g) (a), weight per m2 (b) and C concentration (%) (c) in the coarse (coarse SL) and fine (Fine SL) forest floor at year 5 of the second rotation (R2Y5). 100A and 100E = pure acacia and eucalypt, respectively, while 50A50E = mixed-species (50% acacia and 50% eucalypt) stands. Vertical bars are the standard errors of three-block averages. Different letters indicate significant differences at P = 0.05 between stand types at R2Y5Back to article page