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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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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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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Plastic particles affect N2O release via altering core microbial metabolisms in constructed wetlands

Water Research, Journal Year: 2024, Volume and Issue: 255, P. 121506 - 121506

Published: March 22, 2024

Language: Английский

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Could soil microplastic pollution exacerbate climate change? A meta-analysis of greenhouse gas emissions and global warming potential

Environmental Research, Journal Year: 2024, Volume and Issue: 252, P. 118945 - 118945

Published: April 16, 2024

Language: Английский

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