Fig. 7

db-RDA analysis based on Bray-Curtis distance between environmental factors and bacterial groups (genus level). Each point on the plot represents a sample point. The arrows indicate the direction and magnitude of the influence of each environmental factor on the bacterial genera, and the length and direction of the arrow represent the strength and direction of the correlation. (B) Heatmap diagram based on Spearman correlation analysis between environmental factors and bacterial groups (genus level). Each row corresponds to an environmental factor, and each column represents a bacterial genus. The colors in the heatmap represent the Spearman correlation coefficients