Figure 2 | Scientific Reports

Figure 2

From: Microbiome signature and diversity regulates the level of energy production under anaerobic condition

Figure 2

Pairwise Pearson’s correlation between each of the two physicochemical and microbial alpha diversity characteristics. Black and blue indicate positive and negative correlation, respectively. The figures demonstrate the scale of correlation. pH, CH4 (%), CO2 (%), O2 (%), Others (%), H2S (ppm), Env_Temp (°C) (Environmental_Temperature), Dig_Temp (°C) (Digester_Temperature), Dig_pre (mb) (Digester_pressure), Humidity (%) are different physicochemical parameters. Num_OTUs are the numbers of microbial OUTs. Observed, Chao1, Shannon, and Simpson are the α-diversity indices. *Significant level (■ p < 0.1; *p < 0.05; **p < 0.01; ***p < 0.001). The R package, chart. Correlation function of PerformanceAnalytics (https://cran.r-project.org/web/packages/PerformanceAnalytics/index.html) was used to analyze and visualize the plot.

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