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Papers
61,005 resultsShowing papers similar to Microplastic Lateral Transport in Agricultural Slopes: A Field-Based Approach
ClearHorizontal and vertical mobilisation of microplastics in agricultural soils: run-off and infiltration experiments
Researchers measured the horizontal runoff and vertical leaching of microplastics from agricultural mulching films in field plots, quantifying transport under simulated rainfall. Both transport pathways were significant, with particle size and soil properties influencing how far microplastics moved from their source.
Soil erosion as transport pathway of microplastic from agriculture soils to aquatic ecosystems
Researchers simulated heavy rainfall events on agricultural soils containing microplastics and tracked particle transport through runoff and erosion, finding that soil erosion is a significant pathway for moving agricultural microplastics into adjacent water bodies, with particle size and shape governing transport distance.
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.
Microplastic Transport by Overland Flow: Effects of Soil Texture and Slope Gradient Under Simulated Semi-Arid Conditions
Using rainfall simulation experiments across soils of varying texture and slope gradients, researchers studied how overland flow transports microplastics of different shapes and sizes, finding that soil texture and slope angle significantly influenced MP runoff distance and concentration.
Horizontal and vertical mobilisation of microplastics in agricultural soils: run-off and infiltration experiments
Researchers studied the horizontal and vertical movement of microplastics from agricultural mulch films in soil, examining runoff and leaching as transport pathways. The study found that microplastics from mulch films migrate both downward into the soil profile and laterally via surface runoff.
Microplastics transport in soils: A critical review
This critical review examined how microplastics are transported through soils, evaluating the role of particle size and shape, soil texture, water flow, and bioturbation in governing vertical and lateral transport. The authors identify knowledge gaps in field-scale transport processes and call for standardized leaching experiments to improve predictions of microplastic mobility in terrestrial systems.
Quantifying the movement of microplastics in soil in response to overland flow and splash erosion
Researchers quantified how overland flow and raindrop splash erosion mobilize and transport microplastics from soil surfaces. Both processes moved microplastic particles, with splash being particularly effective at short distances and overland flow dominating transport over larger areas. Understanding these erosion-driven transport processes is important for predicting how microplastics move from agricultural fields into streams and rivers.
Rainfall-induced lateral and vertical microplastic transport of varying sizes in agricultural fields
Rainfall simulation experiments tracked polyethylene microplastics of three size ranges (53–500 µm) on agricultural soil plots, finding that smaller particles were transported farther laterally in surface runoff and penetrated deeper into soil profiles, highlighting size-dependent microplastic mobility under rainfall conditions.
Transport and Fate of Microplastics in Terrestrial Environments: The Role of Surface Runoff, Root-Mediated Infiltration, and Fragmentation-Driven Mobility
Researchers investigated the transport and fate of microplastics in terrestrial environments through three key processes -- surface runoff, root-mediated infiltration, and fragmentation-driven mobility -- applying classical sediment transport principles to microplastic movement. Field studies and laboratory experiments examined how particle characteristics such as density, size, and shape influence microplastic distribution across agricultural and natural landscapes.
Horizontal transport of macro- and microplastics on soil surface by rainfall induced surface runoff as affected by vegetations
Researchers investigated how rainfall-induced surface runoff transports macro- and microplastics across soil surfaces, finding that vegetation cover significantly reduces plastic transport while plastic size, density, and rainfall intensity also influence horizontal movement.
Vertical transport of microplastic in agricultural soil in controlled irrigation plot experiments
Researchers conducted field plot experiments in agricultural soil and found that microplastics migrate vertically with irrigation water, with smaller particles (53–63 µm) penetrating up to 6 cm deep and larger particles remaining near the surface, indicating that water infiltration is a key driver of subsurface plastic transport.
Model-based analysis of erosion-induced microplastic delivery from arable land to the stream network of a mesoscale catchment
Researchers developed the first catchment-scale model estimating how much microplastic is transported from farmland soils into stream networks through soil erosion. The study found that erosion can be a significant pathway for moving microplastics from agricultural fields into rivers, with implications for downstream water quality.
Understanding the overland transport of microplastics from agricultural soils to freshwater systems
This study investigated how microplastics move from agricultural soils to freshwater systems through surface runoff. Researchers found that rainfall intensity, soil type, and particle characteristics all influenced how much plastic reached waterways. Understanding the overland transport pathway is important because agricultural soils are one of the largest reservoirs of microplastics in terrestrial environments.
Size/shape-dependent migration of microplastics in agricultural soil under simulative and natural rainfall
Researchers found that microplastic migration in agricultural soil under rainfall depends on particle size and shape, with smaller particles moving deeper and rainfall intensity significantly influencing vertical transport patterns in soil profiles.
Model-based analysis of erosion-induced microplastic delivery from arable land to the stream network of a mesoscale catchment
Researchers applied a model-based analysis to quantify how erosion transports microplastics from agricultural land to the stream network of a mesoscale catchment, finding that surface runoff and soil erosion are significant pathways for microplastic delivery to inland waters.
Microplastics transport in soils: A critical review
Researchers reviewed how microplastics move through soil, finding that their transport depends on a complex mix of particle properties, soil chemistry, water flow, and biological activity — and that these factors often interact in ways that produce contradictory results across studies. The review maps these knowledge gaps and calls for more controlled experiments to predict where microplastics accumulate and how they might reach groundwater or crops.
Microplastic polymer type impacts water infiltration and its own transport in soil
Researchers conducted laboratory soil column experiments to examine how microplastic polymer type affects both water infiltration rates and the transport of the plastic particles themselves through soil, testing the two most commonly used agricultural microplastic types under controlled hydrological conditions. The study found that polymer type significantly influenced both water flow dynamics and microplastic mobility in soil, with important implications for predicting plastic fate in agricultural and natural terrestrial ecosystems.
Understanding microplastic transport and retention in soil: insights from laboratory and field studies
This study combined laboratory column experiments and field observations to characterize how polyethylene, PBAT, and starch-based biodegradable microplastics move through sandy loam and loamy sand soils under different hydrological conditions. Transport distance and retention depth varied significantly by polymer type and soil texture, with rainfall intensity being a key driver of vertical microplastic migration.
Indirect Effects of Microplastic-Contaminated Soils on Adjacent Soil Layers: Vertical Changes in Soil Physical Structure and Water Flow
Laboratory experiments showed that microplastic contamination in upper soil layers indirectly altered the physical structure and water flow of adjacent uncontaminated lower soil layers, suggesting that microplastics can affect soil hydrology beyond their immediate zone of contamination.
Quantifying soil surface erosion
This study quantified soil surface erosion rates using a combination of field measurements and modeling, examining how land use, vegetation cover, and rainfall intensity interact to drive soil loss. The findings provide improved estimates for erosion-driven microplastic transport in agricultural landscapes.
Horizontal transport characteristics of microplastics under simulated hydrodynamic conditions
Researchers systematically investigated the horizontal transport of microplastics across soil surfaces under simulated hydrodynamic conditions using 1 µm polystyrene particles and quartz sand. The study identified surface runoff scouring as a key pathway by which microplastics are mobilized and distributed laterally through terrestrial environments.
Occurrence and emission characteristics of microplastics in agricultural surface runoff under different natural rainfall and short-term fertilizer application
Researchers investigated how microplastics travel from agricultural fields into waterways through surface runoff during natural rainfall events. They found that fertilizer application and rainfall intensity significantly affected the amount and type of microplastics washed off farmland. The study highlights agricultural runoff as a major pathway for microplastic transfer from land to aquatic environments.
Exploring the vertical transport of microplastics in subsurface environments: Lab-scale experiments and field evidence
Researchers investigated how microplastics move downward through soil using laboratory column experiments and field sampling of groundwater. They found that heavier rainfall, smaller particle size, and fiber-shaped microplastics all increased vertical transport through unsaturated soil. Field samples confirmed the presence of microplastics in both soil layers and groundwater, suggesting that surface plastic pollution can migrate into underground water supplies.
Influences of land use and depth profile on the characteristics of microplastics in agricultural soils
Researchers examined how land use and soil depth profile influence microplastic characteristics in agricultural soils, finding that wastewater and sludge application, plastic mulching, and atmospheric deposition are key sources, and that MP type and abundance vary with soil management practice and depth, highlighting the importance of vertical distribution in soil MP studies.