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20 resultsShowing papers similar to Diverse Impactsof Microplastic-derived DissolvedOrganic Matter at Environmentally Relevant Concentrations on SoilDissolved Organic Matter Transformation
ClearDiverse Impacts of Microplastic-derived Dissolved Organic Matter at Environmentally Relevant Concentrations on Soil Dissolved Organic Matter Transformation
Researchers examined how dissolved organic matter leached from biodegradable and conventional agricultural mulch microplastics affects soil chemistry at environmentally realistic concentrations. They found that UV-exposed microplastic leachates were more bioavailable and caused greater changes to soil organic matter than those produced in dark conditions. The study suggests that even at low concentrations, microplastic-derived compounds can meaningfully alter soil carbon dynamics, with effects varying by soil type.
Effects of Microplastics and Organic Fertilizer Regulation on Soil Dissolved Organic Matter Evolution
This study examined how microplastic addition to soil affects dissolved organic matter (DOM) evolution, focusing on the interactions between microplastics as carbon sources and organic fertilizer. Microplastics altered DOM composition and quantity, with effects on soil carbon cycling that varied by plastic type and organic fertilizer combination, suggesting complex interactions between plastic pollution and soil amendment practices.
Microplastics InfluenceDissolved Organic Matter TransformationMediated by Microbiomes in Soil Aggregates
A 450-day incubation study found that microplastics altered dissolved organic matter (DOM) transformation in soil aggregates by disrupting microbiome composition and activity, with effects differing between macro- and micro-aggregate fractions.
Microplastics InfluenceDissolved Organic Matter TransformationMediated by Microbiomes in Soil Aggregates
A 450-day incubation experiment found that microplastics altered dissolved organic matter transformation in different soil aggregate fractions by modifying microbial community composition and activity, potentially affecting long-term soil carbon dynamics. (Duplicate record of ID 10767.)
Spatiotemporal heterogeneous effects of microplastics input on soil dissolved organic matter (DOM) under field conditions
Researchers conducted a long-term field experiment and found that microplastic inputs have spatiotemporally heterogeneous effects on soil dissolved organic matter (DOM), with implications for soil carbon dynamics under increasing terrestrial plastic contamination.
Microplastic coupled with soil dissolved organic matter mediated changes in the soil chemical and microbial characteristics
Researchers conducted a two-month incubation experiment to study how polyethylene microplastics of different sizes and concentrations affect soil carbon composition and microbial communities. They found that microplastics altered the dissolved organic matter in soil and shifted how microbial communities utilized carbon sources. The study suggests that microplastic accumulation in agricultural soils may have cascading effects on soil health and nutrient cycling.
Microplastics Influence Dissolved Organic Matter Transformation Mediated by Microbiomes in Soil Aggregates
Researchers conducted a 450-day experiment to study how microplastics alter the transformation of dissolved organic matter within soil aggregates, a process critical for soil stability and fertility. They found that microplastics destabilized organic matter in larger soil clumps while increasing its chemical complexity in smaller ones, with biodegradable plastics having the strongest effects. These changes were driven by shifts in microbial communities, suggesting that microplastic pollution could fundamentally alter how carbon cycles through agricultural soils.
Response of soil dissolved organic matter to microplastic addition in Chinese loess soil
Researchers added microplastics to loess soil at two concentrations and tracked dissolved organic matter over 30 days, finding that even moderate additions altered the rate of organic carbon, nitrogen, and phosphorus release, stimulated soil enzyme activity, and promoted accumulation of high-molecular-weight humic compounds — suggesting microplastic pollution reshapes soil nutrient cycling.
Adsorption of microplastic-derived organic matter onto minerals
Dissolved organic matter (DOM) released from weathered microplastics was studied for its adsorption onto soil minerals, a process relevant to microplastic fate and potential contaminant transport. Microplastic-derived DOM adsorbed onto mineral surfaces, altering soil chemistry and potentially stabilizing or mobilizing other contaminants in soil-water systems.
Research on the Effects of Aging Microplastics on Soil Nitrogen and Dissolved Organic Matter in Dryland Soil
Researchers examined the effects of aged microplastics at varying concentrations on nitrogen forms and dissolved organic matter (DOM) in dryland agricultural soil, finding that microplastic addition reduced ammonia nitrogen, nitrate nitrogen, and total nitrogen while altering DOM composition, humic content, and soil organic matter stability.
Microplastic effects on soil organic matter dynamics and bacterial communities under contrasting soil environments
Researchers compared microplastic effects on soil organic matter dynamics and bacterial communities across contrasting soil environments, finding that the type of microplastic polymer and soil conditions together determine whether microbial activity and carbon cycling are stimulated or suppressed.
Dissolved organic matter leached from microplastic (MPs-DOM) divergently alters pyrene adsorption in soil
Dissolved organic matter leached from microplastics (MPs-DOM) was shown to alter microbial community structure and chemical cycling in water. This suggests that even without direct particle ingestion, the chemical leachates from plastics can reshape aquatic ecosystems.
MicrobialPhysiologicalAdaptation to BiodegradableMicroplastics Drives the Transformation and Reactivity of DissolvedOrganic Matter in Soil
Researchers added virgin and aged polylactic acid and polyhydroxyalkanoate microplastics to agricultural soils and found that microbial physiological adaptation to biodegradable plastics significantly altered the transformation and reactivity of dissolved organic matter over a 56-day incubation period.
Molecular insights into effects of PBAT microplastics on latosol microbial diversity and DOM chemodiversity
Researchers found that biodegradable PBAT microplastics significantly altered soil microbial community diversity and dissolved organic matter composition in tropical latosol over 120 days, with effects intensifying at higher microplastic concentrations.
Effects of polylactic acid microplastics on dissolved organic matter across soil types: Insights into molecular composition
Researchers investigated how biodegradable polylactic acid microplastics affect dissolved organic matter in three different types of paddy soil. They found that the microplastics altered the molecular composition of organic matter in soil-specific ways, with some soils showing increased humic substances and others showing more protein-like compounds. The study highlights that even biodegradable plastics can change soil chemistry, and the effects vary depending on soil type.
What Do We Know About the Effects of Microplastics on Soil?
This review examines the effects of microplastics on soil ecosystems, covering how mulching, wastewater irrigation, sludge application, and atmospheric deposition introduce microplastics to soil, where they alter physicochemical properties, affect microbial communities, and carry co-pollutants.
Microplastic-Derived Dissolved Organic Matter Regulates Soil Carbon Respiration via Microbial Ecophysiological Controls
Researchers investigated how dissolved organic matter released by microplastics affects the way soil microbes process carbon. They found that compounds leaching from both new and aged microplastics stimulated soil carbon release, with aged microplastics having a larger effect by altering microbial community structure. The findings suggest that microplastic pollution may influence soil carbon cycling and potentially affect how effectively soils store carbon.
Microbial Physiological Adaptation to Biodegradable Microplastics Drives the Transformation and Reactivity of Dissolved Organic Matter in Soil
Researchers studied how soil microbes adapt to biodegradable microplastics (PLA and PHA) and how this affects dissolved organic matter in agricultural soil over 56 days. They found that PLA tripled the oxidation of plant-derived organic matter by activating lignin decomposition pathways, while PHA doubled microbially derived compounds by accelerating bacterial protein synthesis and cell turnover. The study suggests that different biodegradable plastics trigger distinct microbial strategies that reshape soil carbon cycling.
Soil constituents mediate the effects of microplastics from biodegradable mulch on soil biogeochemical properties
Researchers studied how soil constituents (organic matter, clay content) mediate the effects of microplastics from biodegradable mulch films on soil biogeochemical properties. Soil type significantly altered how MPs influenced carbon and nitrogen cycling and microbial communities, suggesting that biodegradable MPs cannot be assumed safe across all soil contexts.
Microplastic effects on soil system parameters: a meta-analysis study
Microplastics in soil did not significantly affect dissolved organic carbon, nutrient availability, microbial diversity, or crop biomass, but they did significantly increase soil microorganism abundance and decrease water-stable macro-aggregates, pointing to soil structure degradation as the primary concern.