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61,005 resultsShowing papers similar to Microplastic effects on soil nitrogen storage, nitrogen emissions, and ammonia volatilization in relation to soil health and crop productivity: mechanism and future consideration
ClearMicroplastics 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.
Polyethylene and polyvinyl chloride microplastics promote soil nitrification and alter the composition of key nitrogen functional bacterial groups
Researchers found that polyethylene and PVC microplastics in soil increased nitrification (a key step in the nitrogen cycle) and changed the composition of nitrogen-processing bacteria. These changes could affect soil fertility and the availability of nutrients for crops. The study highlights how microplastic contamination in agricultural soil may have hidden effects on food production by altering fundamental soil processes.
Effects and mechanism of microplastics on organic carbon and nitrogen cycling in agricultural soil: A review
This review summarizes how microplastic pollution in agricultural soils affects carbon and nitrogen cycling by altering soil properties, microbial communities, and enzymatic activity. Evidence indicates that microplastics can change organic matter degradation rates and nutrient cycling processes, with implications for soil health and agricultural productivity.
Microplastic pollution on the soil and its consequences on the nitrogen cycle: a review
This review examines microplastic pollution impacts on soil nitrogen cycling, finding that microplastics alter soil structure, serve as novel microbial colonization surfaces, and affect the microbial communities responsible for nitrogen fixation, nitrification, and denitrification.
Polyethylene microplastic and soil nitrogen dynamics: Unraveling the links between functional genes, microbial communities, and transformation processes
Researchers conducted a six-month experiment to understand how polyethylene microplastics in soil affect nitrogen cycling, a process critical for soil fertility and plant nutrition. They found that while total nitrogen levels stayed stable, microplastics significantly altered the forms of nitrogen present by increasing ammonium and nitrate while decreasing dissolved organic nitrogen. The study suggests that microplastics reshape soil microbial communities and their nitrogen-processing activities, potentially disrupting the natural nutrient balance in agricultural soils.
Key factors and mechanisms of microplastics’ effects on soil nitrogen transformation: A review
This review systematically analyzed how microplastics affect nitrogen transformation processes in soil. Researchers found that the size, shape, concentration, and polymer type of microplastics all influence soil nitrogen cycling through changes to microbial communities, soil structure, and enzyme activity. The study identifies key knowledge gaps and recommends standardized research approaches to better predict how microplastic pollution will alter soil nutrient dynamics.
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.
Unraveling consequences of soil micro- and nano-plastic pollution on soil-plant system: Implications for nitrogen (N) cycling and soil microbial activity
This review examines how micro- and nano-plastics affect soil microbial activity and nitrogen cycling in agricultural ecosystems, finding mixed effects that depend on polymer type and size. The authors highlight concerns about biodegradable plastics posing greater risks to plant growth than conventional plastics, complicating the assumption that biodegradable options are always safer.
Plastic film mulching and microplastics impact soil nitrogen processes
This review examines how plastic film mulching practices introduce microplastic contamination into farmland soils and how accumulated microplastics alter soil nitrogen cycling processes — including nitrification, denitrification, and nitrogen fixation — with implications for crop growth and long-term agricultural sustainability.
Microplastics in Soil: Uncovering Their Hidden Chemical Implications
This review of over 100 studies examines how microplastics affect soil health, finding they can disrupt nutrient cycling, alter soil acidity, change microbial communities, and act as carriers for heavy metals and pesticides. The effects vary widely depending on the type of plastic, particle shape, and environmental conditions, with some plastics depleting nitrogen and phosphorus while others temporarily boost nutrient retention. The findings underscore that microplastic contamination in agricultural soils could have far-reaching consequences for food production and ecosystem health.
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.
Differential impacts of polyethylene microplastic and additives on soil nitrogen cycling: A deeper dive into microbial interactions and transformation mechanisms
This study tested how polyethylene microplastics, their base resin, and plastic additives each affect nitrogen cycling in soil -- a process essential for plant growth. All three altered the soil's nitrogen balance and microbial communities in different ways, with microplastics increasing certain nitrogen transformation rates the most. These findings matter because disrupted nitrogen cycling in farmland could affect crop nutrition and ultimately the quality of food humans eat.
Microplastics from polyvinyl chloride agricultural plastic films do not change nitrogenous gas emission but enhance denitrification potential
Researchers investigated whether microplastics from PVC and PE agricultural films affect nitrogen gas emissions from soil. They found that while PVC microplastics did not significantly change nitrogenous gas emissions under normal oxygen conditions, they enhanced the soil's denitrification potential under low-oxygen conditions. The study suggests that plastic film residues in farmland may subtly alter soil nitrogen cycling processes.
Effects of microplastics on soil microorganisms and microbial functions in nutrients and carbon cycling – A review
This review examines how microplastics in soil alter the communities of bacteria and fungi that are essential for recycling nutrients like nitrogen, phosphorus, and carbon. Microplastics can increase certain beneficial bacteria but decrease others that are important for soil fertility, and they also carry toxic chemicals that further disrupt microbial life. The authors note that most studies are short-term lab experiments, and long-term field studies are needed to understand real-world impacts.
The impacts of microplastics on the cycling of carbon and nitrogen in terrestrial soil ecosystems: Progress and prospects
This review examines how microplastics in soil affect the cycling of carbon and nitrogen, two elements essential for plant growth and soil health. Microplastics alter soil microbial communities and enzyme activity in ways that change greenhouse gas emissions and nutrient availability, which could ultimately affect crop production and the food supply.
[Advances in Research of the Effects and Mechanisms of Polyethylene Microplastics on Soil Nitrogen Transformation].
This review examines the effects and mechanisms by which polyethylene microplastics — the dominant microplastic type in Chinese agricultural soils — influence elemental cycling processes in soil, summarizing findings on carbon, nitrogen, and phosphorus dynamics under microplastic exposure.
Microplastics as an Emerging Environmental Pollutant in Agricultural Soils: Effects on Ecosystems and Human Health
This review examines how microplastics enter and move through agricultural soil ecosystems, affecting soil properties, nutrient cycling, and the organisms that live in and depend on healthy soil. Researchers found that microplastics can alter key biogeochemical processes and interact with co-existing pollutants like heavy metals and pesticides, potentially compounding their harmful effects. The study highlights the need for prevention and control strategies as microplastic contamination of farmland becomes an increasingly recognized environmental and potential human health concern.
LDPE microplastics affect soil microbial communities and nitrogen cycling
Researchers found that adding polyethylene microplastics to soil changed the bacterial communities and disrupted the nitrogen cycle, which is essential for soil fertility and plant growth. Microplastics increased the activity of certain nitrogen-processing genes while decreasing others, shifting the balance of nutrient cycling. These changes in soil function could ultimately affect crop health and the quality of food grown in microplastic-contaminated agricultural land.
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.
Invisible threats in soil: Microplastic pollutionand its effects on soil health and plant growth
This review summarizes current knowledge about microplastic contamination in agricultural soil, covering where the plastics come from, how they move through soil, and what they do to soil health and plant growth. Microplastics can alter soil structure, disrupt microbial communities, and interfere with nutrient cycles that plants need to grow. The findings raise concerns that widespread microplastic pollution in farmland could quietly reduce crop quality and productivity, ultimately affecting the food supply.
Microplastics affect C, N, and P cycling in natural environments: Highlighting the driver of soil hydraulic properties
This study found that common microplastics like polyethylene and polypropylene significantly change how soil handles water and nutrients by increasing water content, reducing soil density, and altering bacterial communities involved in nitrogen and carbon cycling. These changes affected how nutrients are stored in soil, with increases of 12 to 93 percent in nitrogen and carbon storage depending on the plastic type and amount. The findings suggest microplastic pollution could disrupt the fundamental soil processes that support food production.
Microplastics in soils: Production, behavior process, impact on soil organisms, and related toxicity mechanisms
This review examines how microplastics enter and persist in soils, covering their sources from agricultural plastics, irrigation water, and atmospheric deposition. Researchers found that microplastics can alter soil structure, affect nutrient cycling, and harm soil organisms like earthworms and microbes. The study highlights significant gaps in understanding the long-term ecological consequences of soil microplastic contamination.
Microplastics in Agricultural Soil
This book chapter surveys microplastic contamination in agricultural soils, reviewing the sources of plastic inputs, concentrations found in different farming systems, and the effects of MPs on soil properties, microbial communities, and crop yields.
Effects of microplastic contamination on soil nitrogen and its bioavailability in soybean-maize rotation system
Researchers conducting a field experiment found that microplastics in agricultural soil disrupt the nitrogen cycle in a soybean-maize rotation system, inhibiting the natural nitrogen fixation that legumes provide and increasing the conversion of ammonium to nitrate — a form more prone to leaching away — raising concerns for long-term soil fertility.