Fig. 7
From: Effects of oil pollution on the growth and rhizosphere microbial community of Calamagrostis epigejos
Correlation analysis between soil physicochemical factors and microorganisms. (a) correlation heatmap analysis; (b) Mantel heatmap analysis; (c) structural equation model diagram; (d) archaea redundancy analysis; (e) virus redundancy analysis; (f) bacteria redundancy analysis; g-fungi redundancy analysis. In the structural equation model, solid red line arrows represent statistically significant positive paths, dashed green line arrows indicate negative paths, and the numbers on the arrows denote standardized path coefficients. Additionally, X2 = 127.74, df = 11, GFI = 0.39, RMSEA = 1.152 were obtained as evaluation metrics for model fit. PPO refers to polyphenol oxidase activity; CAT represents catalase activity; ACP denotes acid phosphatase activity; NAG stands for N-acetylglucosaminidase activity; CBH indicates cellulose hydrolysis enzyme activity; BG signifies β-glucosidase activity; TIN corresponds to tiller number of Calamagrostis epigejos; AB represents aboveground biomass; BB refers to belowground biomass; AK denotes available potassium in soil; AN represents alkaline nitrogen in soil; AP signifies available phosphorus in soil; PEH stands for petroleum hydrocarbon.
