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Polyethylene Mulch Emissions Differentially Impact the Soil Metabolome and Microbial Community in Field Pea (Pisum sativum L.) Cultivation
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Polyethylene mulch film emissions in agricultural fields differentially shifted soil microbial communities, stimulating bacterial growth while suppressing fungal populations, and altered soil metabolic networks in field pea cultivation. These findings reveal that plastic mulch does not merely fragment into microplastics but also releases volatile emissions that restructure the soil microbiome, with cascading implications for soil health and carbon cycling.
PE mulch emissions differentially shift soil microbial communities and metabolic networks, with bacterial proliferation contrasting with fungal suppression. These findings highlight the complex trade-offs between agronomic benefits and soil biological impacts, emphasizing the need for sustainable mulching alternatives.
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Integrated microbiology and metabolomics analysis reveal plastic mulch film residue affects soil microorganisms and their metabolic functions
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Researchers used high-throughput gene sequencing combined with metabolomics to study how plastic mulch film residues affect soil microorganisms and their metabolic functions. They found that mulch film residues significantly altered microbial community composition and disrupted key metabolic pathways in the soil. The study reveals that plastic agricultural film left in soil can interfere with the biological processes that keep soil ecosystems healthy.
Effects of residual mulching films with different mulching years on the diversity of soil microbial communities in typical regions
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Researchers examined four cotton fields in Xinjiang, China with varying polyethylene mulch film histories (0-25 years) using high-throughput sequencing to assess how residual film and microplastics affect soil microbial communities. They found that short-term mulching (0-10 years) increased microbial diversity while continuous 25-year mulching significantly decreased bacterial diversity, with Proteobacteria and Ascomycetes dominating, and residual film accumulation reducing bacterial community diversity without significantly impacting fungal diversity.
Agri-plastics in soils drive changes in the rhizosphere bacterial community and plant transcriptome in Arabidopsis
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Researchers investigated how low-density polyethylene mulching film residues affect rhizosphere bacterial communities and plant gene expression in Arabidopsis, finding that plastic residues mixed into agricultural soil at 5% w/w altered microbial community composition and triggered changes in plant transcriptome responses.
Evaluating the Impact of Traditional and Biodegradable Mulch Film Residues on Heavy Metal Dynamics and Maize Productivity: Insights from Arbuscular Mycorrhizal Fungi Community Analysis
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Researchers compared the long-term effects of traditional polyethylene and biodegradable mulch film residues on soil properties, heavy metal uptake in maize, and beneficial soil fungi communities. Traditional mulch residues increased the accumulation of arsenic and cadmium in maize roots while altering soil chemistry, whereas biodegradable mulch residues also affected fungal communities but in different ways. The study suggests that neither type of mulch film is without environmental consequence, and that their residues can influence both crop safety and soil microbial health.
Effects of Biodegradable Film Mulching on Bacterial Diversity in Soils
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Researchers compared bacterial diversity in soils mulched with biodegradable plastic films, conventional plastic films, and bare soil, finding that biodegradable films altered microbial community composition differently than conventional plastics. The results are relevant to evaluating whether biodegradable agricultural films truly reduce soil microbiome disruption compared to persistent plastic mulches.
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