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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Sign in to save

Regulatory path for soil microbial communities depends on the type and dose of microplastics

Journal of Hazardous Materials 2024 35 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Ruimin Qi, Ruimin Qi, Ruimin Qi, Ruimin Qi, Ruimin Qi, Ruimin Qi, Ruimin Qi, Davey L. Jones Jiawei Li, Yuanyuan Tang, Yihan Chi, Davey L. Jones Yihan Chi, Davey L. Jones Yihan Chi, Yihan Chi, Davey L. Jones Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Changrong Yan, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Changrong Yan, Changrong Yan, Changrong Yan, Yuanyuan Tang, Yuanyuan Tang, Ruimin Qi, Ruimin Qi, Yuanyuan Tang, Changrong Yan, Changrong Yan, Changrong Yan, Fengxiang Gao, Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Changrong Yan, Davey L. Jones Davey L. Jones Yihan Chi, Changrong Yan, Ruimin Qi, Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Ruimin Qi, Fengxiang Gao, Davey L. Jones Jiawei Li, Changrong Yan, Changrong Yan, Davey L. Jones Changrong Yan, Davey L. Jones Yihan Chi, Changrong Yan, Changrong Yan, Changrong Yan, Yihan Chi, Davey L. Jones Davey L. Jones Davey L. Jones Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Jiawei Li, Changrong Yan, Changrong Yan, Changrong Yan, Changrong Yan, Changrong Yan, Yuanyuan Tang, Davey L. Jones Yuanyuan Tang, Changrong Yan, Davey L. Jones Changrong Yan, Changrong Yan, Changrong Yan, Davey L. Jones Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Ruimin Qi, Ruimin Qi, Changrong Yan, Davey L. Jones Changrong Yan, Changrong Yan, Changrong Yan, Yihan Chi, Changrong Yan, Changrong Yan, Davey L. Jones Changrong Yan, Davey L. Jones Yuanyuan Tang, Davey L. Jones Changrong Yan, Yuanyuan Tang, Davey L. Jones Yuanyuan Tang, Davey L. Jones Changrong Yan, Davey L. Jones Fengxiang Gao, Davey L. Jones Davey L. Jones Changrong Yan, Yuanyuan Tang, Changrong Yan, Davey L. Jones Yuanyuan Tang, Fengxiang Gao, Changrong Yan, Davey L. Jones Davey L. Jones Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Davey L. Jones Yuanyuan Tang, Davey L. Jones Davey L. Jones Yuanyuan Tang, Davey L. Jones Davey L. Jones Davey L. Jones Changrong Yan, Changrong Yan, Changrong Yan, Changrong Yan, Changrong Yan, Davey L. Jones Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Davey L. Jones Changrong Yan, Ruimin Qi, Yuanyuan Tang, Yuanyuan Tang, Yuanyuan Tang, Davey L. Jones Ruimin Qi, Davey L. Jones Davey L. Jones Yuanyuan Tang, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Changrong Yan, Changrong Yan, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones

Summary

Researchers compared how six types of microplastics at different concentrations affect soil microbial communities, testing both conventional and biodegradable plastics. They found that biodegradable microplastics had a greater impact on soil carbon and nitrogen levels than conventional ones, and that the type and dose of microplastic determined which microbial groups were most affected. The findings suggest that even so-called biodegradable plastics can significantly alter soil ecosystems when they break down into microplastic-sized particles.

Polymers
PE PP PVC

To reveal the feedbacks and regulating mechanisms of microplastic types and doses on microbial community, a microcosm experiment was carried out with two non-degradable microplastics [polyethylene (PE) and polyvinyl chloride (PVC)] and four biodegradable microplastics [poly(butylene succinate) (PBS), polyhydroxyalkanoates (PHA), poly(butyleneadipate-co-terephthalate) (PBAT), and polypropylene carbonate (PPC)] at different levels (1 %, 7 %, and 28 %). As a result, the content of total carbon (TC), soil organic carbon (SOC), and microbial biomass carbon (MBC) (expect MBC in PBS soil) increased with increasing doses of microplastics, and increased at the lowest PE dose rate. Biodegradable microplastics created a more active ecological niche while enriching more pathogens than non-degradable microplastics. Structural equation modeling indicated that microbial diversities were in a type-dependent assembly, whereas microbial compositions were more profoundly affected by the microplastic doses, ultimately. The standardized total effect coefficient of microplastic types on bacterial and fungal diversities was - 0.429 and - 0.282, and that of doses on bacterial and fungal compositions was 0.487 and 0.336, respectively. Both microplastic types and doses significantly impacted pH, electrical conductivity, total nitrogen, TC, SOC, and MBC, subsequently inhibiting microbial diversities and stimulating microbial compositions with particular pathways. The results provide a comprehensive understanding for evaluating the potential risk of microplastics.

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