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61,005 resultsShowing papers similar to Impacts of microplastics on agroecosystem multifunctionality: From plant production to soil microbial diversity and functions
ClearPolyethylene microplastics alter soil microbial community assembly and ecosystem multifunctionality
Researchers studied how polyethylene microplastics at different concentrations affect soil microbial communities and overall ecosystem function in a maize growing system. They found that higher concentrations of microplastics shifted microbial community composition, reduced beneficial bacteria involved in nutrient cycling, and impaired multiple soil ecosystem functions simultaneously. The study suggests that microplastic contamination in agricultural soils can undermine the biological processes that support healthy crop growth.
Polyethylene microplastics reduce microbe-driven multifunctionality in maize-soybean intercropping ecosystem
This greenhouse study examined how polyethylene, polypropylene, and polystyrene microplastics affect a maize-soybean intercropping system at concentrations up to 5% by weight. High PP concentrations reduced maize biomass by nearly 30%, while PS surprisingly increased it; microplastic presence generally disrupted soil microbial diversity and reduced overall ecosystem multifunctionality.
Microplastic: Evaluating the Impact on Soil-Microbes and Plant System
This review examines how microplastics affect soil microbial communities and plant systems in agricultural settings, documenting impacts on soil health, microbial diversity, and crop physiology. As microplastics accumulate in farmland soils through irrigation, sludge application, and plastic mulches, their effects on the soil ecosystem that underpins food production are a growing concern.
Increasing concentration of pure micro- and macro-LDPE and PP plastic negatively affect crop biomass, nutrient cycling, and microbial biomass
Researchers grew maize in soil mixed with pure polyethylene and polypropylene plastics of different sizes and found that higher plastic concentrations reduced crop biomass, disrupted nutrient cycling, and decreased soil microbial activity. Even plastics without chemical additives negatively affected plant growth, showing that the plastic material itself is harmful to soil health. This matters for food security because agricultural soils are accumulating plastic from mulch films and other farming materials.
Response of soil biochemical properties and ecosystem function to microplastics pollution
This study found that polyethylene microplastics significantly disrupted soil health by reducing enzyme activity, lowering nutrient availability, and impairing overall ecosystem function. Smaller microplastics caused more damage than larger ones, and the effects were dose-dependent, suggesting that as microplastic pollution accumulates in agricultural soil, it could increasingly threaten the soil health that food production depends on.
Microplastics in agroecosystems: A review of effects on soil biota and key soil functions
This review examines how microplastic and nanoplastic contamination in agricultural soils affects soil organisms and ecological functions. Researchers found that plastics enter farmland through multiple pathways including plastic mulch, sewage sludge, and irrigation water, and once present they alter soil properties and exhibit toxic behavior toward soil biota. The study identifies significant knowledge gaps about the long-term impacts of microplastic accumulation on agricultural productivity and food safety.
Microplastics in plant-soil ecosystems: A meta-analysis
This first formal meta-analysis of microplastics in plant-soil systems found that microplastics made soils more porous and water-retentive but decreased aggregate stability and microbial diversity, suggesting plastics occupy physical space without integrating into the soil biophysical matrix. Maize was more sensitive than rice or wheat, and microplastics enhanced soil CO2 flux and evapotranspiration while reducing N2O flux.
Influence of soil microplastic contamination on maize (Zea mays) development and microbial dynamics
Researchers grew maize (corn) in soil contaminated with varying amounts of microplastics and found that higher microplastic levels disrupted soil bacteria and fungi, caused leaf damage like yellowing and tissue death, and led to elevated heavy metals in plant tissue above safe limits. The results point to serious risks microplastics pose to crop health, soil ecosystems, and food safety.
Effects of polyethylene microplastics on the microbial community structure of maize rhizosphere soil
Researchers investigated how polyethylene microplastics from agricultural films affect the microbial communities in crop root zones (rhizosphere), finding shifts in bacterial diversity and function. Disrupting soil microbiomes through microplastic contamination could have downstream effects on soil fertility and crop health.
Microplastics reduced bioavailability and altered toxicity of phenanthrene to maize (Zea mays L.) through modulating rhizosphere microbial community and maize growth
Researchers studied how microplastics affect the behavior of phenanthrene, a common soil pollutant, in maize-growing soil. They found that microplastics reduced the amount of phenanthrene absorbed by the plants while also changing the microbial communities around the roots. The study suggests that microplastics in agricultural soil can alter how other pollutants interact with crops, sometimes reducing their uptake but also shifting soil ecology in complex ways.
Tiny toxins, big problems: the hidden threat of microplastic in agroecosystems
This review examines the impacts of microplastic contamination in agricultural soils, covering sources from plastic mulch and irrigation, effects on soil structure, water retention, microbial diversity, and nutrient cycling, and consequences for crop health and food safety.
Concentration-Dependent Impacts of Microplastics on Soil Nematode Community in Bulk Soils of Maize: Evidence From a Pot Experiment
Researchers found that polypropylene microplastics altered soil nematode community composition in a concentration-dependent manner, reducing bacterivore abundance and shifting the soil food web structure, indicating disrupted soil ecological functioning in agricultural settings.
Investigation of the effects of polyethylene microplastics at environmentally relevant concentrations on the plant-soil-microbiota system: A two-year field trial
Researchers conducted a two-year field trial to study how polyethylene microplastics at environmentally relevant concentrations affect crops, soil, and microbial communities in a rice-wheat rotation system. They found that microplastics did not harm wheat growth but actually increased rice grain weight and plant height, while reducing soil nutrient levels including nitrogen and phosphorus. The study reveals that microplastics can alter soil bacterial communities and disrupt metabolic processes in ways that differ between crop seasons.
Microplastics alter soil enzyme activities and microbial community structure without negatively affecting plant growth in an agroecosystem
Researchers tested how three types of microplastics (polystyrene, polyethylene, and PVC) affected plant growth, soil enzymes, and microbial communities in an agricultural setting. The study found that while microplastics suppressed several soil enzyme activities and altered carbon cycling, they did not negatively affect plant growth and in some cases actually enhanced above-ground and below-ground plant productivity.
Evaluating the impacts of microplastics on agricultural soil physical, chemical properties, and toxic metal availability: An emerging concern for sustainable agriculture
This study tested how five common types of microplastics affect soil properties and heavy metal availability in agricultural soil over 90 days. Microplastics changed soil structure, nutrient levels, and water-holding capacity, and actually reduced the availability of toxic heavy metals at higher plastic concentrations -- highlighting the complex ways plastic pollution is altering the farmland that produces our food.
Microplastics alter the equilibrium of plant-soil-microbial system: A meta-analysis
This meta-analysis pools data from multiple studies to show that microplastics disrupt the balance between plants, soil, and soil microbes. The effects vary depending on the type, size, and concentration of microplastics, suggesting that these tiny plastic particles can alter how nutrients cycle through the soil and ultimately affect the food we grow.
Microplastics Can Change Soil Properties and Affect Plant Performance
Researchers tested six different types of microplastics in soil and found that they altered key soil properties including water-holding capacity, bulk density, and microbial activity. These changes in soil structure had cascading effects on plant growth, with some microplastic types reducing above-ground biomass. The study demonstrates that microplastics can fundamentally change how soil functions, with consequences for plant health and ecosystem stability.
Responses of microbial communities to the addition of different types of microplastics in agricultural soils
Researchers conducted a 90-day soil incubation study to examine how four types of microplastics — polyethylene, polypropylene, polyvinyl chloride, and polyethylene terephthalate — affect agricultural soil properties and microbial communities. They found that all four types significantly altered soil enzyme activities, nutrient content, and the diversity of microbial populations. The study indicates that microplastic contamination in farmland can disrupt soil health in ways that may affect agricultural productivity.
Impact of Microplastic Contamination on Phosphorus Availability, Alkaline Phosphatase Activity, and Polymer Degradation in Soil
Researchers studied how different types of microplastics at various concentrations affect phosphorus availability and enzyme activity in soil. They found that microplastics altered phosphorus cycling both by directly supplying phosphorus in some cases and by changing microbial enzyme function. The study suggests that microplastic contamination could disrupt soil nutrient dynamics important for maintaining agricultural productivity.
Microplastics affect the ecological stoichiometry of plant, soil and microbes in a greenhouse vegetable system
Researchers added polyethylene microplastics to greenhouse vegetable soil at different concentrations and found significant disruption to the balance of carbon, nitrogen, and phosphorus in the soil, soil microbes, and the plants themselves. Higher concentrations of microplastics altered the soil chemistry and shifted microbial communities, which could affect nutrient cycling and crop health. This matters for human health because microplastic-contaminated agricultural soil may impact the nutritional quality of the food we eat.
Polyethylene microplastics distinctly affect soil microbial community and carbon and nitrogen cycling during plant litter decomposition
Researchers measured how polyethylene microplastics affect soil microbial communities and carbon cycling in agricultural soils, finding that microplastic addition shifted microbial diversity and suppressed key carbon mineralization processes. The results suggest microplastic accumulation in farmland could impair soil carbon storage.
Current Status and Future Challenges of Microplastics in the Agroecosystems
This review examines the current status and future challenges of microplastic contamination in agroecosystems, focusing on how microplastics alter soil biogeochemical processes, microbial community dynamics, and plant-soil health. Researchers found that microplastics create microbial hotspots, cause physical and chemical damage to soil organisms, and introduce carbon inputs that complicate ecosystem function assessments.
Microplastics in plant-microbes-soil system: A review on recent studies
This review examined microplastic interactions within the plant-microbe-soil system, finding that microplastics affect soil physicochemical properties, alter microbial communities, and can be taken up by plants, with implications for food safety and ecosystem health.
Microplastics in Agricultural Soils: An Emerging Threat to Soil Health, Microbial Ecology, Crop Productivity, and Food Safety
This review examines how microplastics accumulate in agricultural soils from sources like plastic mulch, sewage sludge, and atmospheric deposition. Researchers found that these particles can disrupt soil microbial communities, harm plant health, and potentially enter the human food chain. The study highlights the urgent need for mitigation strategies to address this growing but often overlooked form of pollution in farmland.