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Papers
20 resultsShowing papers similar to Parameters of labile organic carbon as the indicators of the stability of soil organic matter under different land use
ClearStability of organic carbon pools and sequestration potential as affected under different agroforestry systems
This study evaluates how five different agroforestry systems affect soil organic carbon stability and sequestration in degraded Himalayan soils in northeast India. It is not about microplastics and is a false positive for microplastic relevance.
Mechanism of polyethylene and biodegradable microplastic aging effects on soil organic carbon fractions in different land-use types
Researchers compared how polyethylene and biodegradable microplastics at different stages of aging affect soil organic carbon fractions across various land-use types. The study found that both types of microplastics altered soil carbon dynamics, but the effects depended on the plastic type, its degree of aging, and the specific land-use context.
Microplastics-driven reconfiguration of organic carbon fractions in lake sediments: mineralization and stabilization dynamics of biodegradable polymers
Microplastics in soil were found to alter the composition and distribution of organic carbon fractions, with implications for soil fertility and carbon sequestration. The study reveals that microplastic contamination can reshape the biogeochemical cycling of carbon in terrestrial ecosystems.
Effect of forest planting patterns on the formation of soil organic carbon during litter lignocellulose degradation from a microbial perspective
Not relevant to microplastics — this study investigates how different urban forest planting patterns (broadleaf, coniferous, mixed) affect soil organic carbon formation through litter decomposition using metagenomics and metabolomics, without any connection to microplastic pollution.
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.
Effects of land use/land cover change on soil physicochemical properties and soil carbon stock in Kochore district, southern Ethiopia
This study examined how changes in land use in southern Ethiopia affected soil quality and carbon storage over 20 years. While not about microplastics directly, the research is relevant because degraded soils from intensive farming are more vulnerable to microplastic contamination, and healthy agroforestry soils store more carbon and maintain better structure. Understanding soil health is important context for assessing how microplastics affect agricultural land.
Living in the plastic age - Different short-term microbial response to microplastics addition to arable soils with contrasting soil organic matter content and farm management legacy
Adding polyethylene or polypropylene microplastics to two agricultural soils did not severely disrupt overall microbial activity or nitrogen cycling, but polypropylene reduced microbial biomass, especially in the organically managed soil. The results suggest that soil management history influences how resilient soil microbiomes are to microplastic contamination.
Soil carbon cycling mediated by microplastics: Formation, mineralization, and sequestration
This review examines how microplastic pollution affects soil organic carbon cycling, covering direct participation in carbon processes and indirect effects on soil physicochemical properties and microbial communities. The authors synthesize mechanisms by which microplastics influence organic carbon formation, mineralization, and sequestration in terrestrial ecosystems.
Characteristics and Driving Mechanism of Soil Organic Carbon Content in Farmland of Beijing Plain: Implication for the Fate of Engineered Polymers in Soil
This study examined how soil organic matter affects the transport of ions and particles in agricultural soils, relevant to understanding how microplastics interact with soil chemistry. Soil organic carbon content significantly influenced the mobility of contaminants through soil systems.
Differential carbon accumulation of microbial necromass and plant lignin by pollution of polyethylene and polylactic acid microplastics in soil
This study found that both conventional polyethylene and biodegradable polylactic acid microplastics changed how carbon is stored in soil. The plastics increased carbon from dead microbes while decreasing carbon from plant material, with most of the additional soil carbon coming from fungal remains. These changes to soil chemistry matter because they could affect agricultural productivity and the ability of soil to store carbon, with broader implications for climate and food systems.
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.
Microplastics disrupt accurate soil organic carbon measurement based on chemical oxidation method
Microplastic contamination of soil was found to interfere with standard chemical oxidation methods for measuring soil organic carbon, leading to significant overestimates because plastic particles are oxidized alongside organic matter during analysis.
Microplastics influence organic carbon depletion in macroaggregates and soil structural stability in the Yanhe catchment
Researchers investigated how microplastics within soil aggregate fractions affect organic carbon retention and structural stability in the Yanhe catchment, finding that microplastics accelerate organic carbon depletion from macroaggregates and reduce soil structural stability. The results suggest that microplastic contamination in agricultural soils may compound land-use-driven degradation of soil quality.
[Effects of Polyethylene Microplastics with Different Particle Sizes on Soil Organic Carbon Characteristics and Mineralization in Agricultural Soil].
Researchers conducted a 180-day indoor soil cultivation experiment to investigate how polyethylene microplastics of different particle sizes — millimeter-scale, micrometer-scale — affect soil organic carbon characteristics and mineralization processes in agricultural soil.
Macro and microplastics in the soil: abundance, characterization, identification, and interactions under different land uses in an agricultural sub-basin
Researchers examined the abundance, characterization, identification, and interactions of macro- and microplastics in soils under different land uses within an agricultural sub-basin, assessing how land-use patterns influence plastic pollution distribution and potential interactions with the soil environment.
The bridging role of soil organic carbon in regulating bacterial community by microplastic pollution: Evidence from different microplastic additions
This study tested how three common microplastics -- polyethylene, polystyrene, and PVC -- affect soil health when present at realistic concentrations. All three types changed the soil's chemistry and shifted the balance of bacterial communities, which matters because these same soil changes can affect the crops we grow and the food chain that ultimately impacts human health.
Unraveling the characteristics of microplastics in agricultural soils upon long-term organic fertilizer application: A comprehensive study using diversity indices
Researchers analyzed microplastic contamination in agricultural soils that had received organic fertilizers (pig manure, chicken manure, and sewage sludge compost) for 12 years. All three fertilizer types introduced significant microplastic pollution, with risk levels classified as high across all treatments. This study shows that organic fertilizers, often considered environmentally friendly, are a major pathway for microplastics to enter the soil and potentially the food we grow in it.
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.
meta
This global meta-analysis of 508 observations found that microplastics increase labile soil organic carbon while decreasing stable carbon fractions, creating a critical carbon trade-off that threatens long-term soil carbon storage. Under climate stressors like drought and warming, microplastics further accelerate microbial decomposition, potentially undermining soil's capacity to act as a carbon sink.
meta
This global meta-analysis of 508 observations found that microplastics increase labile soil organic carbon while decreasing stable carbon fractions, creating a critical carbon trade-off that threatens long-term soil carbon storage. Under climate stressors like drought and warming, microplastics further accelerate microbial decomposition, potentially undermining soil's capacity to act as a carbon sink.