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Fig. 4 | Ecological Processes

Fig. 4

From: Enhanced carbon acquisition and use efficiency alleviate microbial carbon relative to nitrogen limitation under soil acidification

Fig. 4

Effects of S addition on β-1,4-glucosidase (BG, a), β-1,4-N-acetylglucosaminidase (NAG, b), leucine aminopeptidase (LAP, c) activities, C:N acquiring enzymes ratios (represented by BG: (NAG+LAP), d; and BG: LAP, e), and the correlation between BG: LAP and C:N imbalance (f). Bar indicates the mean value (± 1 standard error) for each treatment. Different lowercase letters above bars indicate significant differences among different S addition rates at the level of P < 0.05. The scatter subplot in each panel demonstrates the relationship between soil pH and corresponding variables, the linear regression is fitted when P < 0.05 (with R2 and P shown). The gray area represents 95% confidence interval

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