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61,005 resultsShowing papers similar to Effect of microplastics on soil greenhouse gas emissions in agroecosystems: Does it depend upon microplastic shape and soil type?
ClearEffect of microplastics on soil greenhouse gas emissions: A global meta-analysis study
This global meta-analysis found that microplastic exposure in soil decreased nitrous oxide emissions by 28.5% and increased methane emissions by 28.6%, though neither change was statistically significant overall. Effects varied dramatically depending on microplastic shape, concentration, soil type, and pH, with fiber-shaped microplastics reducing CO2 emissions by 40% while microplastics in sandy soils increased CO2 by 21%.
Disentangling microplastics effects on soil structure, microbial activity and greenhouse gas emissions
Researchers studied how microplastics affect soil structure, microbial activity, and greenhouse gas emissions, finding complex interactions that depend on microplastic type and concentration. The presence of microplastics in soils can alter the biological processes that regulate carbon storage and nutrient cycling.
Microplastics in agricultural soil: Unveiling their role in shaping soil properties and driving greenhouse gas emissions
This review examines how microplastics in agricultural soils affect carbon and nitrogen cycles and alter greenhouse gas emissions. Researchers found that microplastics reduce soil water retention, decrease soil respiration, and increase emissions of carbon monoxide, methane, and nitrous oxide. The study reveals that microplastic contamination in farmland may have broader climate implications by disrupting the soil processes that regulate greenhouse gas fluxes.
Effects of microplastics on soil properties: Current knowledge and future perspectives
This review examines how microplastics affect soil health, including changes to soil structure, chemistry, and the microbial communities that keep soil fertile. The effects vary depending on the type, shape, and amount of plastic present, but in many cases microplastics alter nutrient availability and can even influence greenhouse gas emissions from soil. These changes could threaten crop productivity and food safety, since microplastics are now found in agricultural soils worldwide.
Effects of microplastics on soil organic carbon and greenhouse gas emissions in the context of straw incorporation: A comparison with different types of soil
Researchers combined microplastic treatments with straw incorporation in different soil types and measured effects on soil organic carbon and greenhouse gas emissions, finding that microplastics altered carbon cycling and in some soils increased CO2 and N2O emissions.
Presence of different microplastics promotes greenhouse gas emissions and alters the microbial community composition of farmland soil
Researchers examined how five types of microplastics (PVC, PP, PE, PS, and PET) at different concentrations affect greenhouse gas emissions and microbial communities in farmland soil. The study found that microplastic presence promoted greenhouse gas emissions and altered the composition of soil microbial communities, with effects varying by plastic type and concentration.
Microplastic Impacts on Greenhouse Gases Emissions in Terrestrial Ecosystems
A 90-day laboratory experiment tested how high-density and low-density polyethylene microplastics at 0-0.1% (w/w) soil concentrations affect greenhouse gas emissions from terrestrial soils. The study found that microplastic type and concentration influenced CO2, CH4, and N2O emissions differently, with implications for microplastic contributions to climate change.
Shape matters: microplastic fibers disrupt soil carbon cycling via shape-driven physical disturbance
Researchers assessed how acrylic fiber and low-density polyethylene bead microplastics affect soil carbon cycling at two addition rates, finding that fiber-shaped microplastics caused greater physical disturbance to soil structure due to their high surface area and dissimilarity from natural soil particles, disrupting the soil carbon priming effect more substantially than bead-shaped particles.
Effects of microplastics on greenhouse gas emissions and the microbial community in fertilized soil
Two particle sizes of microplastics were added to fertilized soil and their effects on dissolved organic carbon, greenhouse gas fluxes, and microbial communities were measured, finding reduced global warming potential due to decreased methane emissions but changes in bacterial and fungal community composition. The study reveals complex interactions between microplastics and soil carbon cycling processes.
Microplastics have shape- and polymer-dependent effects on soil aggregation and organic matter loss – an experimental and meta-analytical approach
This meta-analysis combined with lab experiments shows that different shapes of microplastics affect soil differently. Fiber-shaped microplastics were especially harmful, breaking apart soil structure and increasing the loss of organic matter — changes that could reduce soil health and crop productivity over time.
Effects of microplastics on microbial community and greenhouse gas emission in soil: A critical review
This review examines how microplastics in soil affect microbial communities and greenhouse gas emissions, finding that microplastics can alter the abundance and activity of soil bacteria in ways that increase carbon dioxide and nitrous oxide release. The plastics change soil structure and chemistry, creating conditions that favor certain gas-producing microbes over others. These effects could worsen climate change while also disrupting soil fertility, with indirect consequences for food production.
The effect of polyvinyl chloride microplastics on soil properties, greenhouse gas emission, and element cycling-related genes: Roles of soil bacterial communities and correlation analysis
Researchers investigated how PVC microplastics of different shapes and concentrations affect soil properties, greenhouse gas emissions, and nutrient cycling. They found that microplastic particles significantly increased carbon dioxide emissions and altered bacterial communities involved in element cycling. The study suggests that microplastic contamination in agricultural soils could disrupt important environmental processes including carbon and nitrogen cycling.
Microplastic fibers affect dynamics and intensity of CO2 and N2O fluxes from soil differently
Researchers added plastic microfibers to agricultural soil and found that while the fibers increased carbon dioxide (CO2) emissions by improving soil aeration, they simultaneously decreased nitrous oxide (N2O) emissions by suppressing the denitrification process. These opposing effects on two major greenhouse gases mean microplastic soil contamination has complex and competing consequences for climate change.
Could soil microplastic pollution exacerbate climate change? A meta-analysis of greenhouse gas emissions and global warming potential
The first meta-analysis linking soil microplastic pollution to greenhouse gas emissions found that microplastics increased overall emissions, with the strongest effect being a 60% increase in methane. Polyethylene caused the highest methane emissions, phenol-formaldehyde had the greatest global warming potential via nitrous oxide, and greenhouse gas emissions rose sharply when soil microplastic content exceeded 0.5%.
Effect of microplastics on carbon, nitrogen and phosphorus cycle in farmland soil: A meta-analysis
This meta-analysis of 102 studies found that microplastics in farmland soil increased soil organic carbon, microbial biomass carbon, and microbial biomass nitrogen, but also elevated CO2, methane, and nitrous oxide emissions through enhanced carbon mineralization and denitrification. Microplastic biodegradability, size, concentration, and soil properties all drove these effects, suggesting agricultural microplastic pollution may worsen greenhouse gas emissions from farmland.
Microplastic shape, concentration and polymer type affect soil properties and plant biomass
Experiments showed that microplastic shape, concentration, and polymer type all influence soil physical properties and plant biomass, with certain types reducing plant growth. The findings highlight that the wide variety of plastic particle types entering soils creates complex and variable ecological risks.
Comparative evaluation of the impacts of different microplastics on greenhouse gas emissions, microbial community structure, and ecosystem multifunctionality in paddy soil
Researchers compared the effects of polylactic acid, low-density polyethylene, and polypropylene microplastics on greenhouse gas emissions and soil ecosystem functions in paddy soil over 41 days. They found that all three microplastic types increased soil carbon nutrients and pH, while suppressing CO2 and N2O emissions in most cases, leading to reduced global warming potential. The study suggests that different microplastic polymers have varying effects on soil ecosystem multifunctionality, with some types improving it and others having detrimental effects.
Do Added Microplastics, Native Soil Properties, and Prevailing Climatic Conditions Have Consequences for Carbon and Nitrogen Contents in Soil? A Global Data Synthesis of Pot and Greenhouse Studies
This meta-analysis examined how microplastics affect carbon and nitrogen levels in soil, which are key to soil fertility. The results show that certain types of plastics — especially smaller, fiber-shaped particles — can significantly alter soil chemistry, potentially affecting crop growth and soil health.
Microplastics have shape- and polymer-dependent effects on soil processes
This meta-analysis combined published research with lab experiments to show that microplastic shape matters when it comes to soil health effects. Fibers were especially harmful to soil structure regardless of their chemical makeup, while films and foams have been largely overlooked in research. Since healthy soil is essential for growing safe food, understanding how different microplastic shapes affect soil helps us grasp the full scope of plastic pollution's impact.
Effects of microplastics on soil microbiome: The impacts of polymer type, shape, and concentration
Researchers examined how different microplastic polymer types, shapes, and concentrations affected soil bacterial communities, finding that these physical characteristics induced distinct shifts in soil microbiome composition and diversity.
[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.
Effects of microplastic types and shapes on the community structure of arbuscular mycorrhizal fungi in different soil types
Researchers examined how different types and shapes of microplastics affect arbuscular mycorrhizal fungi communities across various soil types. The study found that microplastics alter soil structure and chemistry in ways that disrupt these beneficial fungi, which play crucial roles in nutrient exchange, soil stability, and water movement.
Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations
Researchers conducted a two-year field study examining how different shapes of polyethylene microplastics affect soil bacterial communities and found that shape matters more than concentration. Fiber and fragment-shaped microplastics caused the most significant changes in bacterial diversity and community structure compared to spherical or powder forms. The findings challenge the common assumption that microplastic concentration is the primary factor driving ecological impacts in soil.
Microplastics Increase Soil pH and Decrease Microbial Activities as a Function of Microplastic Shape, Polymer Type, and Exposure Time
Researchers tested twelve different types of microplastics in soil and found that their effects on soil health depended heavily on the shape, plastic type, and how long they were present. Foam and fragment shapes raised soil pH the most, while polyethylene foam increased soil respiration, and several types reduced the activity of important soil enzymes. These findings help explain why microplastic studies often show conflicting results, since the specific characteristics of the plastic matter as much as its presence.