Abstract Twelve types of biochars were applied in a heavily contaminated soil from a coking plant to gain insights into the mechanism responsible for the microbial response to the addition of different biochar types into soil and biodegradation removal of polycyclic aromatic hydrocarbons (PAHs). The biochars primarily influenced the bacterial community at the genus level, while they strongly affected the fungal community not only at the genus level but also at the class and phylum levels. Principal component analysis (PCA) indicated that the inorganic minerals in biochars played a key role in stimulating microbial abundance (bacteria) and diversity (bacteria and fungi) in soil from the coking plant, and significantly negative correlations between the residual concentrations of PAHs in biochar-treated soils and the ash contents in biochars (generally, p

中文翻译：

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生物炭作为一种生物刺激策略从焦化厂重污染土壤中去除多环芳烃的机制

摘要 将 12 种类型的生物炭应用于焦化厂严重污染的土壤中，以深入了解微生物对土壤中添加不同类型生物炭的反应和多环芳烃 (PAHs) 的生物降解去除机制。生物炭主要在属水平上影响细菌群落，而它们不仅在属水平上而且在纲和门水平上都强烈影响真菌群落。主成分分析 (PCA) 表明，生物炭中的无机矿物质在刺激焦化厂土壤中的微生物丰度（细菌）和多样性（细菌和真菌）方面发挥了关键作用，