Abstract Polymer modifiers are widely used in the remediation of cadmium-contaminated soil. However, little is known about how polymer modifiers affect soil bacterial communities. The purpose of this study was to measure the effects of polymer modifiers (polyacrylate polymer and organic polymer) on the composition and network structure of bacterial communities in cadmium-contaminated soils combined with phloem girdling of cotton. The results showed that polyacrylate polymer increased soil urease, sucrase, and alkaline phosphatase activities (P Mn oxides-bound Cd), Org-Cd (organic Cd), and Res-Cd (residuals Cd) concentrations. Polyacrylate polymer increased the relative abundances of Proteobacteria, Gemmatimonadetes, and Chloroflexi (P

中文翻译：

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聚合物改性剂对镉污染碱性土壤细菌群落的影响

摘要 聚合物改性剂广泛应用于镉污染土壤的修复。然而，人们对聚合物改性剂如何影响土壤细菌群落知之甚少。本研究的目的是测量聚合物改性剂（聚丙烯酸酯聚合物和有机聚合物）对镉污染土壤中结合韧皮部环切棉花的细菌群落组成和网络结构的影响。结果表明，聚丙烯酸酯聚合物增加了土壤脲酶、蔗糖酶和碱性磷酸酶活性（P Mn 氧化物结合的 Cd）、Org-Cd（有机 Cd）和 Res-Cd（残留 Cd）浓度。聚丙烯酸酯聚合物增加了 Proteobacteria、Gemmatimonadetes 和 Chloroflexi 的相对丰度（P