Effects of microplastics on soil microorganisms and microbial functions in nutrients and carbon cycling – A review

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 924, P. 171435 - 171435

Published: March 2, 2024

The harmful effects of microplastics (MPs) pollution in the soil ecosystem have drawn global attention recent years. This paper critically reviews MPs on microbial diversity and functions relation to nutrients carbon cycling. Reports suggested that both plastisphere (MP-microbe consortium) MP-contaminated soils had distinct lower than non-contaminated soils. Alteration physicochemical properties interactions within facilitated enrichment plastic-degrading microorganisms, including those involved (C) nutrient conferred a significant increase relative abundance nitrogen (N)-fixing phosphorus (P)-solubilizing bacteria, while decreased nitrifiers ammonia oxidisers. Depending types, increased bioavailable N P contents nitrous oxide emission some instances. Furthermore, regulated functional activities owing combined toxicity organic inorganic contaminants derived from frequently encountered environment. However, thorough understanding among other still needs develop. Since currently available reports are mostly based short-term laboratory experiments, field investigations needed assess long-term impact (at environmentally relevant concentration) microorganisms their under different types agro-climatic conditions.

Language: Английский

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Role of soil microplastic pollution in climate change

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 887, P. 164112 - 164112

Published: May 11, 2023

Language: Английский

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Global Responses of Soil Carbon Dynamics to Microplastic Exposure: A Data Synthesis of Laboratory Studies

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(13), P. 5821 - 5831

Published: Feb. 28, 2024

Microplastics (MPs) contamination presents a significant global environmental challenge, with its potential to influence soil carbon (C) dynamics being crucial aspect for understanding C changes and cycling. This meta-analysis synthesizes data from 110 peer-reviewed publications elucidate the directional, magnitude, driving effects of MPs exposure on globally. We evaluated impacts characteristics (including type, biodegradability, size, concentration), properties (initial pH organic [SOC]), experimental conditions (such as duration plant presence) various components. Key findings included promotion SOC, dissolved C, microbial biomass root following addition soils, while net photosynthetic rate was reduced. No were observed respiration shoot biomass. The study highlights that concentration, along other attributes, critically influences responses. Our results demonstrate both nature environment interact shape cycling, providing comprehensive insights guiding strategies mitigating impact MPs.

Language: Английский

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Element cycling with micro(nano)plastics

Science, Journal Year: 2024, Volume and Issue: 385(6712), P. 933 - 935

Published: Aug. 29, 2024

Plastics in the environment can alter a wide range of biogeochemical cycles.

Language: Английский

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Unveiling the microplastic perturbation on surface flow constructed wetlands with macrophytes of different life forms: Responses of nitrogen removal and sensory quality

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135283 - 135283

Published: July 21, 2024

Language: Английский

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Do Added Microplastics, Native Soil Properties, and Prevailing Climatic Conditions Have Consequences for Carbon and Nitrogen Contents in Soil? A Global Data Synthesis of Pot and Greenhouse Studies

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(19), P. 8464 - 8479

Published: May 3, 2024

Microplastics threaten soil ecosystems, strongly influencing carbon (C) and nitrogen (N) contents. Interactions between microplastic properties climatic edaphic factors are poorly understood. We conducted a meta-analysis to assess the interactive effects of (type, shape, size, content), native (texture, pH, dissolved organic (DOC)) (precipitation temperature) on C N contents in soil. found that low-density polyethylene reduced total (TN) content, whereas biodegradable polylactic acid led decrease (SOC). Microplastic fragments especially depleted TN, reducing aggregate stability, increasing N-mineralization leaching, consequently C/N ratio. size affected outcomes; those <200 μm both TN SOC Mineralization-induced nutrient losses were greatest at 1 2.5% weight. Sandy soils suffered highest contamination-induced depletion. Alkaline showed depletion, suggesting high degradability. In low-DOC soils, contamination caused 2-fold greater depletion than with DOC. Sites precipitation temperature had conclusion, there complex interactions determining impacts health. always risks but severity depends characteristics, properties, conditions, potential exacerbation by greenhouse emission-induced climate change.

Language: Английский

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Microplastics strengthen nitrogen retention by intensifying nitrogen limitation in mangrove ecosystem sediments

Environment International, Journal Year: 2024, Volume and Issue: 185, P. 108546 - 108546

Published: March 1, 2024

Mangrove wetlands are hotspots of the global nitrogen (N) cycle and important sinks microplastics (MPs) due to their ecotone location between terrestrial marine ecosystems. However, effects MPs on N processes in mangrove ecosystems still poorly understood. Thus, present study assessed impacts by adding sediments a microcosm incubation experiment. The results showed that increased dissolved organic carbon nitrate but reduced ammonium contents sediments. C:N stoichiometric N:C-acquiring enzymatic ratios, indicating an intensified limitation following exposure MPs. decreased microbial community diversity shifted sediment communities from r- K-strategists, consistent with limitation. In response, dissimilatory reduction (DNRA) rates while nitrous oxide (N2O) production suggesting more efficient utilization treatments. heteroatoms such as PLA- PVC-MPs, DNRA 67.5–78.7%, exhibiting stronger impact than PE-MPs. variation partitioning analysis revealed variances N2O could be attributed synergistic physicochemical properties, nutrient limitation, Overall, this provides pertinent insights into new source turnover

Language: Английский

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Recent advances towards micro(nano)plastics research in wetland ecosystems: A systematic review on sources, removal, and ecological impacts

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 452, P. 131341 - 131341

Published: April 3, 2023

Language: Английский

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Effects of microplastics on carbon release and microbial community in mangrove soil systems

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133152 - 133152

Published: Dec. 1, 2023

Language: Английский

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Dose effect of polyethylene microplastics on nitrous oxide emissions from paddy soils cultivated for different periods

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 453, P. 131445 - 131445

Published: April 19, 2023

Language: Английский

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