The impacts of microplastics on the cycling of carbon and nitrogen in terrestrial soil ecosystems: Progress and prospects

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169977 - 169977

Published: Jan. 10, 2024

Language: Английский

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Microbial metabolism influences microplastic perturbation of dissolved organic matter in agricultural soils

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Abstract An estimated 258 million tons of plastic enter the soil annually. Joining persistent types microplastic (MP), there will be an increasing demand for biodegradable plastics. There are still many unknowns about pollution by either type, and one large gap is fate composition dissolved organic matter (DOM) released from MPs as well how they interact with microbiomes in agricultural systems. In this study, polyethylene MPs, photoaged to different degrees, virgin polylactic acid were added at levels incubated 100 days address knowledge gap. We find that, upon MP addition, labile components low aromaticity degraded transformed, resulting increased oxidation degree, reduced molecular diversity, changed nitrogen sulfur contents DOM. Terephthalate, acetate, oxalate, L-lactate DOM 4-nitrophenol, propanoate, nitrate major molecules available microbiomes. The bacteria involved metabolism mainly concentrated Proteobacteria, Actinobacteriota, Bacteroidota, fungi Ascomycota Basidiomycota. Our study provides in-depth understanding microbial transformation its effects evolution soils.

Language: Английский

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Soil microplastics: Impacts on greenhouse gasses emissions, carbon cycling, microbial diversity, and soil characteristics

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 197, P. 105343 - 105343

Published: Feb. 26, 2024

Language: Английский

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Microplastics in agricultural soils: A comprehensive perspective on occurrence, environmental behaviors and effects

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151328 - 151328

Published: April 16, 2024

Language: Английский

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Effects of microplastics on soil carbon pool and terrestrial plant performance

Carbon Research, Journal Year: 2024, Volume and Issue: 3(1)

Published: April 19, 2024

Abstract Soil, as a primary repository of plastic debris, faces an escalating influx microplastics. Microplastics have the potential to decrease soil bulk density and pH, well alter pore structure aggregation. These changes in physicochemical properties subsequently lead habitat degradation for microbes environmental shifts that impact plant growth. Masquerading carbon storage, microplastics can distort assessments pool by introducing plastic-carbon associated leachates, influencing organic matter (SOM) turnover through priming effects (e.g., dilution, substrate switching, co-metabolisms). Additionally, influence distribution particulate mineral-associated matter, consequently affecting accumulation stability carbon. Furthermore, also chemodiversity dissolved (DOM) soils increasing DOM aromaticity molecular weight while deepening its humification degree. The observed may be attributed inputs from microplastic-derived along with organo-organic organo-mineral interactions coupled microbial processes. Acting inert source carbon, create distinct ecological niche growth contribute necromass formation pathways. Conventional reduce contribution stable whereas bio-microplastics tend increase it. exert wide range on performance both internal external factors, seed germination, vegetative reproductive growth, inducing ecotoxicity genotoxicity. impacts arise alterations environment or uptake plants. Future research should aim elucidate storage within fractions, paying closer attention rhizosphere dynamics such stabilization mineral protection rhizodeposits soils. Graphical

Language: Английский

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Plastic wastes (PWs) and microplastics (MPs) formation: Management, migration, and environmental impact

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112926 - 112926

Published: May 4, 2024

Language: Английский

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Metagenomic analysis reveals gene taxonomic and functional diversity response to microplastics and cadmium in an agricultural soil

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118673 - 118673

Published: March 15, 2024

Language: Английский

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The role of plastic chemical recycling processes in a circular economy context

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155227 - 155227

Published: Aug. 30, 2024

Language: Английский

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Biodegradable microplastics pose greater risks than conventional microplastics to soil properties, microbial community and plant growth, especially under flooded conditions

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 931, P. 172949 - 172949

Published: May 3, 2024

Language: Английский

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Microplastic pollution promotes soil respiration: A global‐scale meta‐analysis

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(7)

Published: July 1, 2024

Abstract Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences respiration. Here, we report on a meta‐analysis determine the effects of microbiome CO 2 emission. We found that significantly increased contents organic C (SOC) (21%) dissolved (DOC) (12%), activity fluorescein diacetate hydrolase (FDAse) (10%), microbial biomass (17%), but led decrease in diversity (3%). In particular, increases components further promote emission (25%) from soil, with much higher effect MPs these emissions than biomass. The could be attributed opposite vs. diversity, as accumulation recruited some functionally important bacteria provided additional substrates for specific heterotrophic microorganisms, while inhibiting growth autotrophic taxa (e.g., Chloroflexi , Cyanobacteria ). This study reveals can increase by causing shifts microbiome. These results underscore potential importance plastic terrestrial fluxes, thus climate feedbacks.

Language: Английский

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