We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Model-based analysis of erosion-induced microplastic delivery from arable land to the stream network of a mesoscale catchment
ClearModel-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.
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.
Catchment-scale mechanistic predictions of microplastic transport and distribution across land and water
Researchers developed the first catchment-scale model successfully predicting microplastic transport from land to water, validated against field data, revealing how soil accumulation, runoff dynamics, and in-stream transport interact to determine where microplastics concentrate before reaching the ocean.
Soil erosion is a major drive for nano & micro-plastics to enter riverine systems from cultivated land.
A study quantifying how soil erosion transports nano and microplastics from cultivated land into rivers found that erosion is a major pathway for plastic transfer to aquatic systems, with plastic flux closely linked to soil loss rates and land management practices.
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.
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.
The spatio-temporal variability of soil microplastic distribution and erosion-induced microplastic export under extreme rainfall event using sediment fingerprinting and 7Be in intensive agricultural catchment
Researchers tracked how soil erosion during extreme rainfall events transports microplastics from agricultural land into waterways at the catchment scale. Microplastic abundance in soil peaked during certain seasons and was highest in cropland converted from forest, with most particles smaller than 500 micrometers. Using sediment fingerprinting and beryllium-7 tracing, the study estimated substantial microplastic export loads, showing that agricultural erosion is a significant pathway for microplastic pollution in water bodies.
A numerical model of microplastic erosion, transport, and deposition for fluvial systems
Researchers developed a numerical model of microplastic erosion, transport, and deposition in river systems, finding that rivers act as temporary sinks trapping significant fractions of MPs before they reach the ocean, with implications for estimating marine MP loading from terrestrial sources.
Reply on RC1
This study provides the first estimates of how much microplastic is delivered from agricultural soils to freshwater systems through surface runoff and erosion. Soil erosion events can mobilize accumulated microplastics from farmland into rivers, representing a significant and previously underestimated transport pathway.
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.
The synchronized dynamic release behavior of microplastics during farmland soil erosion process
Field and laboratory experiments on farmland soil in coastal China showed that roughly half of the microplastics present in agricultural soil can be mobilized and released into water bodies during erosion events. The dynamic release pattern — an initial decrease followed by a sharp increase — is driven by competition between particle adsorption, sedimentation, and resuspension, highlighting that controlling soil erosion is a critical and underappreciated lever for preventing microplastic contamination of rivers and coastal waters.
Simulating microplastics temporal dynamics, driving mechanisms and giving insights on sources
Researchers developed a watershed-scale model to simulate temporal dynamics of microplastic concentrations across air, soil, and water compartments, incorporating land use, hydrology, and seasonal variation. The model reproduced observed patterns in a French river catchment and identified agricultural soils as the dominant terrestrial source to receiving waters.
Quantifying microplastic fluvial flux from a coastal watershed—A microplastic rating curve approach
Researchers quantified the flux of microplastics transported by rivers to the coast from a single watershed, providing a mass balance for how much plastic a defined catchment exports. Such flux estimates are essential building blocks for calculating global land-to-ocean plastic budgets.
Estimating microplastic flows across rural-urban gradients in a French catchment
Researchers estimated microplastic flows across rural-urban gradients in a French catchment, examining how land use and urbanization influence the transport and distribution of microplastic particles through the watershed system.
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.
Modelling land use influence on polymer-specific microplastics abundance and transportation from terrestrial to aquatic environments
Researchers developed a model to understand how land use patterns influence the abundance and transport of specific microplastic polymers from land into waterways. The study found that different land uses contribute distinct polymer types to the environment, providing evidence that targeted land management strategies could help reduce microplastic pollution in aquatic systems.
Investigating the Environmental Fate and Pathways of Microplastics from Agricultural Catchments to Freshwater
This thesis investigated the environmental fate of microplastics from agricultural catchments to freshwater systems in the UK, examining pathways by which microplastics move from farm soils into rivers and streams.
A numerical model of microplastic erosion, transport, and deposition for fluvial systems
Researchers developed a reduced-complexity numerical model of microplastic erosion, transport, and deposition in fluvial systems, building on sediment transport methods and applying it to the Têt River in France where outlet flux monitoring data were available. The model found that matching observed fluxes required 1-10 ppm volume concentration of microplastic in the top 0.5 meters of soil, and predicted that a large proportion of microplastics become trapped in river sediments rather than reaching the ocean.
A numerical model of microplastic transport for fluvial systems
Researchers developed a reduced-complexity numerical model of microplastic erosion, transport, and deposition in fluvial systems, applying it to the river Têt in France and finding that a large proportion of microplastics become entrained in river sediments before reaching the ocean.
Transport dynamics of microplastics from land to sea: the role of particle properties and stream morphology.
Researchers measured how particle properties including size, density, and polymer type interact with stream morphology to determine microplastic transport distances in 15 streams. Both plastic characteristics and stream structure independently influenced how far microplastics travel before settling, with implications for estimating fluxes to the ocean.
Rivers as Conduits: A Comprehensive Model of Microplastic Fate and Transport
This study developed a comprehensive model of microplastic fate and transport in rivers, integrating processes of erosion, resuspension, sedimentation, and burial to simulate how microplastics move through river networks toward the ocean.
Comment on egusphere-2023-882
This comment discusses a study estimating how much microplastic is transported from agricultural soils into rivers through erosion and surface runoff. The analysis highlights soil erosion as an important but often overlooked pathway by which microplastics move from land to freshwater systems.
Spatio and temporal dynamics of microplastic fluxes within the watercourses of a peri-urban watershed
Researchers tracked spatial and temporal microplastic flux dynamics in the watercourses of a small peri-urban catchment, examining how different land use types within the watershed contribute to plastic loading in connected streams. Land use strongly influenced microplastic flux, with urbanized and agricultural sub-catchments contributing proportionally more plastic particles to the waterway network.
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.