Effects of microplastics on soil carbon pool and terrestrial plant performance

Carbon Research, Год журнала: 2024, Номер 3(1)

Опубликована: Апрель 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

Язык: Английский

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Response of soil property and microbial community to biodegradable microplastics, conventional microplastics and straw residue

Applied Soil Ecology, Год журнала: 2024, Номер 196, С. 105302 - 105302

Опубликована: Янв. 28, 2024

Язык: Английский

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Effects of photoaging on structure and characteristics of biofilms on microplastic in soil: Biomass and microbial community

Journal of Hazardous Materials, Год журнала: 2024, Номер 467, С. 133726 - 133726

Опубликована: Фев. 8, 2024

Язык: 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, Год журнала: 2024, Номер 931, С. 172949 - 172949

Опубликована: Май 3, 2024

Язык: Английский

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

Global Change Biology, Год журнала: 2024, Номер 30(7)

Опубликована: Июль 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.

Язык: Английский

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Effects of organic additives on spectroscopic and molecular-level features of photo-induced dissolved organic matter from microplastics

Water Research, Год журнала: 2023, Номер 242, С. 120272 - 120272

Опубликована: Июнь 26, 2023

Язык: Английский

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Molecular-level insights into the heterogeneous variations and dynamic formation mechanism of leached dissolved organic matter during the photoaging of polystyrene microplastics

Water Research, Год журнала: 2023, Номер 242, С. 120114 - 120114

Опубликована: Май 22, 2023

Язык: Английский

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Mulch-derived microplastic aging promotes phthalate esters and alters organic carbon fraction content in grassland and farmland soils

Journal of Hazardous Materials, Год журнала: 2023, Номер 461, С. 132619 - 132619

Опубликована: Сен. 23, 2023

Язык: Английский

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Effect of biodegradable PBAT microplastics on the C and N accumulation of functional organic pools in tropical latosol

Environment International, Год журнала: 2023, Номер 183, С. 108393 - 108393

Опубликована: Дек. 17, 2023

Microplastics (MPs) pollution is becoming an emerging global stressor for soil ecosystems. However, studies on the impacts of biodegradable MPs C sequestration have been mainly based bulk quantity, without considering storage form C, its persistency and N demand. To address this issue, common poly (butylene adipate-co-terephthalate) (PBAT) was used as model, effects functional organic pools, including mineral-associated (MAOM), particulate (POM) dissolved matter (DOM), were investigated from novel coupled perspective stocks. After adding PBAT-MPs, contents POM-C, DOM-C, MAOM-C increased by 546.9%-697.8%, 54.2%-90.3%, 13.7%-18.9%, respectively. Accordingly, total 116.0%-191.1%. Structural equation modeling showed that pools regulated PBAT input microbial metabolism associated with enzymes. Specifically, debris could be disguised to promote POM formation, which main pathway accumulation. Inversely, DOM-C formation attributed product selective consumption in DOM-N. Random forest model confirmed N-activated (e.g., Nitrospirae) PBAT-degrading bacteria Gemmatinadetes) important taxa accumulation, key enzymes rhizopus oryzae lipas, invertase, ammonia monooxygenase. The accumulation related oligotrophic Chloroflexi Ascomycota) aggregate decreasing DOM-N 46.9%-84.3%, but did not significantly change other pools. Collectively, findings highlight urgency control nutrient imbalance risk labile loss recalcitrant enrichment avoid depressed turnover rate MPs-polluted soil.

Язык: Английский

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Impact of polyamide microplastics on riparian sediment structures and Cd(II) adsorption: A comparison of natural exposure, dry-wet cycles, and freeze-thaw cycles

Journal of Hazardous Materials, Год журнала: 2024, Номер 466, С. 133589 - 133589

Опубликована: Янв. 21, 2024

Язык: Английский

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