Additionally, as the crude oil concentration increased, a positive trend was noted in the Shannon and Chao index of bacteria and fungi in both A. splendens and P. alopecuroides soils, with the F40 treatment showed significantly higher diversity indices compared to other treatments ( p < 0.05).
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Response of rhizosphere microbial community characteristics and ecosystem multifunctionality to the addition of crude oil in <i>Achnatherum splendens</i> and <i>Pennisetum alopecuroides</i>.
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The sentences
alopecuroides , a decreasing trend is observed.
These findings suggest an increasing trend in the dominance of Proteobacteria in A. splendens with higher crude oil additions, whereas for P. alopecuroides , a decreasing trend is observed.