Knowledge of the influence of microplastics on soil microbiome and nutrients is important for understanding the ecological consequences of microplastic pollution in terrestrial ecosystems. In this study, we investigated whether polyvinyl chloride (PVC) microplastic pollution at environmentally relevant concentrations would affect soil bacterial community and available nitrogen/phosphorus content. The results showed that although PVC microplastics at 0.1% and 1% levels did not have a significant effect on overall bacterial community diversity and composition in soil over the course of 35 days, a number of bacterial genera were significantly reduced or enriched by the presence of microplastics. Potentially due to their effect on certain functional groups, microplastics caused a significant change in soil available P content. It is noteworthy that, depending on soil type, pollution level and plasticizer presence, contrasting effects of microplastics may be observed. Further research is definitely warranted to gain a clearer picture of the threats posed by microplastic pollution in soil environments.

了解微塑料对土壤微生物群和养分的影响对于了解微塑料污染在陆地生态系统中的生态后果很重要。在这项研究中，我们调查了环境相关浓度的聚氯乙烯 (PVC) 微塑料污染是否会影响土壤细菌群落和有效氮/磷含量。结果表明，尽管 0.1% 和 1% 的 PVC 微塑料在 35 天的过程中对土壤中的整体细菌群落多样性和组成没有显着影响，但由于存在微塑料。可能由于它们对某些官能团的影响，微塑料导致土壤有效磷含量发生显着变化。值得注意的是，根据土壤类型、污染程度和增塑剂的存在，可以观察到微塑料的不同影响。绝对有必要进行进一步的研究，以更清楚地了解土壤环境中微塑料污染所带来的威胁。