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61,005 resultsShowing papers similar to Impact of Microplastic Contamination on Phosphorus Availability, Alkaline Phosphatase Activity, and Polymer Degradation in Soil
ClearInsight into the transformation of phosphorus in soil affected by microplastics: A review
This meta-analysis found that microplastics significantly decrease phosphorus availability in soil by 7-56%, driven by particle characteristics, soil properties, and exposure duration. Microplastics alter phosphorus cycling through adsorption, changes in soil chemistry, shifts in microbial communities, and modified phosphatase activity, with implications for farmland fertility management.
Effects of microplastic properties and dissolved organic matter on phosphorus availability in soil and aqueous mediums
Researchers studied how different types of microplastics from agricultural mulching films affect phosphorus availability in soil and water. They found that both conventional plastics like polyethylene and biodegradable plastics like polylactic acid significantly reduced available phosphorus in soil, with smaller and more concentrated particles causing the greatest reductions. The study suggests that microplastic accumulation in agricultural soils may impair nutrient availability for crops.
Microplastics and Soil Nutrient Cycling
Microplastics accumulating in agricultural soils can disrupt the natural cycling of carbon, nitrogen, and phosphorus by altering microbial communities and reducing soil enzyme activity. This review highlights that even at current environmental concentrations, microplastics may impair the soil ecosystem functions that underpin food production, though the full extent of effects on nutrient cycles remains incompletely understood.
Discrepant effects of microplastics on soil phosphorus availability under different phosphorus fertilizer applications
Researchers studied how polyethylene and polylactic acid microplastics interact with different types of phosphorus fertilizers in soil over 56 days. They found that microplastics reduced the amount of plant-available phosphorus in organically fertilized soils by up to 29%, while increasing it in soils treated with mineral fertilizer. The findings suggest that microplastic contamination in farmland could alter how effectively crops access essential nutrients depending on the fertilizer type used.
Assessing Microplastic Contamination Effects on Soil Microbial Communities in Agricultural Land
This study sampled agricultural soils with varying degrees of microplastic contamination to assess effects on microbial diversity, abundance, and enzymatic activity, finding that higher microplastic concentrations reduced microbial diversity and suppressed nutrient-cycling enzyme activity.
Short-term effects of polyethene and polypropylene microplastics on soil phosphorus and nitrogen availability
Researchers examined the short-term effects of polyethylene and polypropylene microplastics on soil nutrient cycling, finding that these particles can alter the availability of phosphorus and nitrogen depending on microplastic size and fertilization conditions.
Effects of microplastics pollution on plant and soil phosphorus: A meta-analysis
Across 781 observations from 73 studies, microplastics significantly reduced plant phosphorus uptake and soil available phosphorus while increasing soil phosphorus leaching. Biodegradable microplastics caused stronger negative effects on soil phosphorus than conventional plastics, and impacts worsened with higher concentrations and longer exposure times.
Microplastics Influence Phosphate Adsorption in Volcanic Ash Soil
Researchers found that adding polyethylene microplastics to volcanic ash soil slightly increased the soil's ability to hold phosphorus but also made phosphorus easier to wash away, potentially reducing its availability to plants. This suggests microplastic contamination in farmland soils could quietly alter nutrient cycling in ways that affect crop growth.
ConventionalandBiodegradable Microplastics BothImpair Soil Phosphorus Cycling and Availability via Microbial Suppression
This 150-day soil incubation study compared how conventional polyethylene and biodegradable polylactic acid microplastics affect microbially-mediated phosphorus cycling. Both MP types suppressed phosphorus-cycling microbial activity, reducing soil phosphorus availability — with biodegradable PLA showing comparable disruption to conventional PE.
Effect of different microplastics on the mobilization of soil inorganic phosphorus by exomycorrhizal fungi
Researchers examined how different microplastic types affect soil inorganic phosphorus mobilization, finding that polymer type and particle size influence phosphorus release from soil minerals, with implications for nutrient cycling in plastic-contaminated soils.
The effects of three different microplastics on enzyme activities and microbial communities in soil
Researchers added three types of microplastics (film PE, fiber PP, and sphere PP) to loamy and sandy soils and measured effects on enzyme activities and microbial communities, finding that all three types altered microbial community structure and nutrient-cycling enzyme activities in soil-type-dependent ways.
Conventional and Biodegradable Microplastics Both Impair Soil Phosphorus Cycling and Availability via Microbial Suppression
Researchers conducted a 150-day experiment comparing the effects of conventional polyethylene and biodegradable polylactic acid microplastics on soil phosphorus cycling. Both types of microplastics reduced available phosphorus by approximately 15% and suppressed key phosphorus-cycling bacteria and enzyme activity. The findings challenge the assumption that biodegradable plastics are environmentally benign, showing they disrupt soil nutrient cycles similarly to conventional plastics.
Effects of micro(nano)plastics on soil nutrient cycling: State of the knowledge.
This review systematically examined how micro- and nano-plastics affect soil nutrient cycling for carbon, nitrogen, and phosphorus, finding that physical interference with soil structure, alteration of microbial communities, and chemical toxicity collectively disrupt mineralization, nitrification, and phosphorus availability in contaminated soils.
[Effects of Polyethylene Microplastics on Soil Nutrients and Enzyme Activities].
Researchers studied how different concentrations and sizes of polyethylene microplastics affect soil chemistry and enzyme activity over four months. They found that smaller microplastics had a greater impact on soil nutrient cycling than larger ones, and that higher concentrations more significantly disrupted enzyme functions critical for soil health. The study indicates that microplastic pollution in agricultural soils could impair the biological processes that maintain soil fertility.
Response of soil enzyme activities and bacterial communities to the accumulation of microplastics in an acid cropped soil
Researchers tested how polyethylene and polyvinyl chloride microplastics at different concentrations affect enzyme activity and bacterial communities in acidic agricultural soil. Both types of microplastics reduced the diversity of soil bacteria while stimulating certain enzymes related to nitrogen and phosphorus cycling. The findings suggest that microplastic accumulation in farmland may alter important soil biological processes, potentially affecting nutrient cycling and the breakdown of pollutants.
Microplastic effects on soil nitrogen cycling enzymes: A global meta-analysis of environmental and edaphic factors
This large-scale meta-analysis of 147 studies found that microplastics in soil significantly increased urease and leucine aminopeptidase enzyme activities by about 8%, potentially disrupting nitrogen cycling. Biodegradable microplastics had more pronounced effects than conventional plastics, and responses depended on soil pH, polymer type, particle size, and concentration.
Research on the Effect of Microplastics on Phosphorus in Soil and Water Environment
This review synthesizes research on how microplastics interact with phosphorus in soil and water environments, finding that adsorption capacity varies with particle size and polymer type, that aging increases adsorption, and that microplastic-phosphorus complexes alter phosphorus migration and bioavailability in ecosystems.
Chlorpyrifos degradation and its impacts on phosphorus bioavailability in microplastic-contaminated soil
This study found that microplastics made from polylactic acid (a biodegradable plastic) in soil changed how the pesticide chlorpyrifos breaks down and altered the availability of phosphorus, a key nutrient for crops. The microplastics slowed pesticide degradation and affected soil enzyme activity, which could impact both food safety and crop nutrition. The findings show that even biodegradable microplastics can disrupt important soil processes that affect the food supply.
Inhibitory effect of microplastics on soil extracellular enzymatic activities by changing soil properties and direct adsorption: An investigation at the aggregate-fraction level
Researchers studied how polyethylene microplastics affect the activity of soil enzymes over 150 days, examining responses across different soil aggregate sizes. They found that microplastics inhibited enzyme activities by altering soil properties, directly adsorbing enzymes, and competing with microorganisms for space. The study reveals that microplastic pollution can undermine key biological processes that maintain soil quality, with different soil aggregate fractions responding in distinct ways.
Effects of microplastics on nitrogen and phosphorus cycles and microbial communities in sediments
Researchers found that PVC, PLA, and polypropylene microplastics altered nitrogen and phosphorus cycling in freshwater sediments by shifting microbial community composition, with effects varying by polymer type and biodegradability.
Growth of grasses and forbs, nutrient concentration, and microbial activity in soil treated with microbeads
Researchers found that polyethylene and polystyrene microbeads in soil reduced plant biomass, altered microbial enzyme activity, and decreased nitrogen content, suggesting microplastics disrupt soil ecosystem functions across multiple nutrient cycling pathways.
Effects of different concentrations and types of microplastics on bacteria and fungi in alkaline soil
Researchers examined how different types and concentrations of polyethylene, polystyrene, and PVC microplastics affect soil bacteria and fungi in alkaline soil over 310 days, finding that all three stimulated enzyme activities and shifted microbial community abundance patterns.
Effects of microplastic pollution on agricultural soil and crops based on a global meta‐analysis
This meta-analysis examined data from studies worldwide to assess how microplastic pollution affects agricultural soil and crops. Researchers found that microplastics can alter soil properties including enzyme activity and nutrient availability, with effects varying by plastic type, concentration, and size. The study suggests that microplastic contamination in farmland may affect both soil health and crop growth in ways that depend heavily on local conditions.
Effect of Polyvinyl Chloride Microplastics on Bacterial Community and Nutrient Status in Two Agricultural Soils
Polyvinyl chloride microplastics at environmentally relevant concentrations did not broadly alter bacterial diversity in two agricultural soils over 35 days, but did significantly change available phosphorus levels and shifted the abundance of specific bacterial genera. The results suggest that microplastic pollution can subtly reshape nutrient cycling and microbial community composition in farmland soils.