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Ecological Processes
Fig. 2 | Ecological Processes

Fig. 2

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

Fig. 2

Effects of S addition on soil pH (a), ratios of DOC:TDN (b), MBC:MBN (c), and their stoichiometric imbalance (d). 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 the 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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