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61,005 resultsShowing papers similar to The Re-distribution of Pristine and Aged Microplastics (<50 µm) in Soil Aggregate Fractions
ClearThe distribution of pristine and aged low density polyethylene and polyethylene terephthalate microplastics in soil aggregate fractions
Researchers investigated how pristine and artificially weathered low-density polyethylene and polyethylene terephthalate microplastics redistribute across soil aggregate fractions during aggregation, adding particles at low concentration to silt loam and loam soils amended with organic matter over a two-month incubation period. They found that weathering significantly altered microplastic surface properties, which in turn affected how particles interacted with and distributed within soil aggregate fractions during soil formation.
The distribution of pristine and aged low density polyethylene and polyethylene terephthalate microplastics in soil aggregate fractions
Researchers investigated how pristine and aged low-density polyethylene (LDPE) and polyethylene terephthalate (PET) microplastics distribute across soil aggregate size fractions, examining whether weathering alters interactions between plastic particles and the soil matrix. The study found that aging significantly modified microplastic surface properties and changed their redistribution patterns within aggregate fractions compared to pristine particles.
Influence of microplastics on soil aggregate formation: Insights into biological binding agents
A laboratory experiment found that polyethylene microplastics in different shapes (granules, fibers, and films) and aging states significantly alter how soil particles clump together into aggregates, with effects depending on the plastic's shape and the soil's organic matter content. Disruption of soil aggregation by microplastics matters because aggregate structure controls water retention, aeration, and microbial habitat — all fundamental to healthy, productive soils.
Microplastic alteration in agricultural soils across Europe: Comparative study of MPs inside and outside soil aggregates over two years
Researchers tracked microplastic aging inside and outside soil aggregates in European agricultural soils over two years, comparing fields in multiple countries. Microplastics enclosed within aggregates showed less physicochemical aging than surface-exposed particles, suggesting that aggregate formation can temporarily protect plastics from degradation and prolong their persistence in soil.
The association of microplastics with water-stable aggregates formed under controlled conditions
Researchers compiled data examining how microplastics associate with water-stable soil aggregates formed under controlled laboratory conditions, providing a dataset supporting the linked publication on microplastic-soil aggregate interactions.
The association of microplastics with water-stable aggregates formed under controlled conditions
Researchers compiled data from a controlled study examining the association between microplastics and water-stable soil aggregates, providing the underlying dataset for the linked publication on microplastic-aggregate interactions.
Microplastic effects on soil aggregation in sterilized and non-sterilized soils
Researchers tested how microplastics affect soil aggregate stability in both sterilized and non-sterilized soils, finding that microbial activity mediates much of the structural impact and that plastic type influences aggregation differently depending on soil biology.
Effects of the oversized microplastic pollution layer on soil aggregates and organic carbon at different soil depths
Researchers examined how oversized microplastic pollution layers in soil affect aggregate stability and organic carbon at different depths, finding that plastic films disrupted soil aggregate formation and altered carbon distribution, with effects varying by soil depth and plastic concentration.
Microplastic Effects on Soil Aggregation in Sterilized and Non‐Sterilized Soils
Researchers tested how microplastics affect soil aggregation in both sterilized and biologically active soils, finding that microplastic effects on aggregate stability were strongly mediated by the presence of soil microorganisms. Biologically active soils showed different responses than sterile soils, highlighting the role of the soil microbiome.
Distribution and dynamics of microplastics in soils
This doctoral research mapped how microplastics are distributed and transported through soils, examining how soil properties like texture and organic matter influence their accumulation, breakdown, and mobility into groundwater. Because soils are both a major sink and a transfer medium for microplastics, this work helps build the foundation needed for assessing contamination risks to agriculture and drinking water.
Impact of Different Soil Tillage Practices on Microplastic Particle Abundance and Distribution
Field experiments across different tillage and fertilization regimes quantified microplastic abundance and vertical distribution in agricultural soils, finding that tillage practices significantly influenced how deeply microplastics are mixed through the soil profile.
Microplastic incorporation into soil aggregates: Insights from two-year field experiments in European agricultural topsoils
Researchers conducted two-year field experiments in European agricultural topsoils comparing microplastic incorporation into soil aggregates from biodegradable and conventional plastic mulch films, finding that soil properties and MP size and shape influence the degree of occlusion, with aggregate embedment potentially protecting MPs from further degradation.
Influence of polymer age and soil aggregation on microplastic transport in soil erosion events
Researchers compared the transport rates of pristine and aged polystyrene microplastics during simulated rainfall events and quantified their incorporation into soil aggregates across multiple wet-dry cycles, providing the first empirical data on how surface roughness and hydrophobicity changes from weathering affect MP mobility in soil erosion.
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.
Microplastics Can Inhibit Organic Carbon Mineralization by Influencing Soil Aggregate Distribution and Microbial Community Structure in Cultivated Soil: Evidence from a One-Year Pot Experiment
Researchers conducted a one-year pot experiment to study how different types and concentrations of microplastics affect soil carbon cycling and aggregate stability. They found that microplastics significantly altered soil aggregate size distribution and decreased organic carbon mineralization rates regardless of polymer type. The study suggests that microplastic contamination may slow the natural breakdown of organic carbon in agricultural soils by changing soil structure and microbial communities.
Impact of Different Soil Tillage Practices on Microplastic Particle Abundance and Distribution
Researchers compared microplastic particle abundance and depth distribution in agricultural soils under conventional tillage, minimum tillage, and no-till practices, finding that tillage intensity affected both total MP concentrations and the vertical mixing of particles through the soil profile.
Size- and concentration-dependent effects of microplastics on soil aggregate formation and properties
This study tested how polyethylene microplastics of different sizes and amounts affect soil structure, finding that smaller particles cause more damage. As microplastics break down into smaller pieces over time, they increasingly disrupt soil aggregates, reduce water stability, and alter soil density. This matters for human health because degraded soil affects food production and can change how contaminants move through the environment.
Effects of microplastic aging on its detectability and physico-chemical properties in loess and sandy soil
This study compared fresh microplastics to aged particles collected from soil and found that weathering significantly changes their physical and chemical properties, including making them more mobile. Aged microplastics may behave very differently in the environment than the pristine particles typically used in laboratory studies.
Comparing the long-term responses of soil microbial structures and diversities to polyethylene microplastics in different aggregate fractions
Long-term soil incubation with polyethylene microplastics found that MPs altered aggregate stability, inhibited soil enzyme activities, and changed microbial community structure and diversity differently across soil aggregate size fractions, with effects persisting over time.
Processes controlling the transportation of microplastics in agricultural soils
Researchers investigated the physical processes controlling microplastic transport through agricultural soils, examining how soil structure, water flow, bioturbation, and particle properties interact to move microplastics from surface application sites deeper into the soil profile or laterally toward aquatic systems. The study addressed the dual role of agricultural soils as both sinks and potential sources of microplastic pollution to surrounding environments.
Abiotic and Biotic Factors Influencing the Effect of Microplastic on Soil Aggregation
This study examined how abiotic factors (plastic type, concentration) and biotic factors (earthworms, plants) influence microplastic effects on soil aggregation, finding that microplastics disrupted aggregate stability in ways dependent on soil biology.
Small-size polyethylene and polylactic microplastic alterations on soil aggregate formation with soil sterilization
Researchers tested how small polyethylene and polylactic acid microplastics affect the formation of soil clumps, called aggregates, which are important for healthy soil structure. The microplastics changed aggregate stability through physical interactions rather than by harming soil microbes. This matters because soil structure affects how well crops grow, and widespread microplastic contamination in agricultural fields could subtly alter soil quality.
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.)
Impacts of Microplastics on the Soil Biophysical Environment
Four common microplastic types (polyacrylic fibers, polyamide beads, polyester fibers, PE fragments) were added to loamy sand soil at environmentally relevant concentrations in a garden experiment and effects on soil-water relationships, structure, and microbial function were measured over 5 weeks. Results showed that microplastics altered water repellency, aggregate stability, and microbial activity in a plastic-type-dependent manner, confirming that microplastics can disrupt fundamental soil biophysical processes.