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20 resultsShowing papers similar to The microplastics distribution characteristics and their impact on soil physicochemical properties and bacterial communities in food legumes farmland in northern China
ClearMicroplastics abundance associated with farmland use types and the impact on soil microbial communities: A case study in Southern China
Researchers surveyed microplastic contamination across orchard, paddy field, and vegetable field soils in Southern China and analyzed how it affected soil microbial communities. They found microplastic levels ranging widely across sites, with very small particles under 30 micrometers being most common, and identified 32 different polymer types. The study shows that farmland use type and agricultural practices like plastic mulching significantly influence both the amount and type of microplastic contamination in soils.
Characteristics of microplastics and their abundance impacts on microbial structure and function in agricultural soils of remote areas in west China
Researchers found that agricultural soils in remote western China using plastic mulch film had about four times more microplastics than fields without it, mostly tiny polyamide fragments under 50 micrometers. The microplastics changed the diversity and function of soil bacteria, including boosting organisms linked to organic matter breakdown. These microbial shifts could affect soil health and potentially increase health risks from crops grown in contaminated soil.
Distribution characteristics of soil microplastics and their impact on soil physicochemical properties in agricultural areas of the North China plain
Microplastics are accumulating across agricultural soils of the North China Plain, with this study finding moderate-to-low abundance across multiple land use types and detecting that plastic particles affect soil texture, bulk density, and water-holding capacity. Altered soil physical properties from microplastic contamination could impair crop growth and soil fertility over time, with implications for food security.
The characteristics and influencing factors of farmland soil microplastic in Hetao Irrigation District, China
Researchers surveyed microplastic contamination in farmland soil across a major grain-producing region in China, finding concentrations ranging from about 1,800 to over 86,000 particles per kilogram. Polyethylene film fragments from agricultural plastic mulch were the dominant type, and 90% of the particles were smaller than 180 micrometers. The study shows that farming practices are introducing large amounts of microplastics into the soil where food crops are grown, raising questions about potential transfer into the food supply.
Spatial Distributions, Compositional Profiles, Potential Sources, and Intfluencing Factors of Microplastics in Soils from Different Agricultural Farmlands in China: A National Perspective
Researchers conducted a nationwide survey of microplastics in Chinese agricultural soils, collecting 477 samples from 109 cities across 31 regions, and identified spatial distribution patterns and key factors influencing farmland microplastic contamination.
The Distribution and Migration of Microplastics in Soils From Different Agricultural Farmlands in China
Researchers conducted the first comprehensive nationwide analysis of microplastics in Chinese farmland soils, covering 169 sites across 31 provinces. They found microplastic levels ranging from 240 to 12,720 items per kilogram, with polyethylene films being the most common form, largely driven by agricultural practices and atmospheric deposition. The study revealed that soil pH was negatively correlated with microplastic abundance, providing new insights into the factors driving microplastic distribution in agricultural environments.
Distinct microplastic distributions in soils of different land-use types: A case study of Chinese farmlands
Microplastic distribution across six types of farmland land use was surveyed from soils in five Chinese provinces to determine how agricultural practices shape soil microplastic contamination. The study found that microplastic abundance varied significantly by land-use type, with plastic mulch film use and irrigation practices as key contributing factors.
Occurrence characteristics and risk assessment of microplastics in agricultural soils in the loess hilly gully area of Yan' an, China
Researchers measured microplastic levels in agricultural soil, water, and fertilizer in a farming region of central China and found an average of about 4,500 particles per kilogram of soil. Over 90% of the particles were smaller than 100 micrometers, and the main types were polyethylene and PET from sources like plastic mulch and compost. The findings show that farming practices are introducing significant microplastic contamination into the soil where food is grown.
The distribution of microplastics in soil aggregate fractions in southwestern China
Researchers investigated microplastic distribution across different soil types in agricultural and forested areas near a lake in southwestern China and found plastic particles in every sample, with concentrations as high as 42,960 particles per kilogram. Approximately 95% of the particles fell within the microplastic size range, and fibers were the dominant form, likely originating from textiles and agricultural materials. The study demonstrates that microplastic contamination in soils is extensive and varies with land use practices.
The abundance, characteristics and distribution of microplastics (MPs) in farmland soil—Based on research in China
This review analyzed microplastic contamination in farmland soil across China and found that fertilizer use and plastic mulch film are the biggest contributors, increasing soil microplastic levels by 170% and 232% respectively. The most common types found were polyethylene and polypropylene fragments and fibers. These findings are concerning because microplastics in farm soil can be taken up by crops and enter the human food supply.
Status, characteristics, and ecological risks of microplastics in farmland surface soils cultivated with different crops across mainland China
Researchers conducted a nationwide survey of microplastics in farmland soils across mainland China, covering over 30 crop types in 109 cities. They found microplastics in all sampled soils, with concentrations varying by crop type, region, and farming practices such as plastic film mulching and irrigation methods. The study provides the most comprehensive picture to date of agricultural microplastic contamination in China and identifies the key farming practices that contribute most to soil pollution.
Exploring the Occurrence Characteristics of Microplastics in Typical Maize Farmland Soils With Long-Term Plastic Film Mulching in Northern China
A survey of 225 soil samples from maize farmland with long-term plastic film mulching in northern China found widespread microplastic contamination, with abundance, distribution, and polymer composition reflecting the history of film use and agricultural management practices.
The occurrence and distribution characteristics of microplastics in the agricultural soils of Shaanxi Province, in north-western China
Researchers surveyed microplastic abundance and polymer types in agricultural soils across multiple counties in Shaanxi Province, northwestern China, finding widespread contamination correlated with agricultural activity intensity and plastic mulch film use.
Abundance and characteristics of microplastics in soils with different agricultural practices: Importance of sources with internal origin and environmental fate
Microplastic abundance and characteristics were examined in soils representing four agricultural practice types in Chinese farmland to evaluate the influence of land use on plastic particle accumulation. Microplastic concentrations and polymer types varied by agricultural practice, with plastic mulch film use and irrigation water source as key drivers of farmland soil contamination.
[Distribution Characteristics and Risk Assessment of Microplastics in Farmland Soil in Guyuan].
Researchers analyzed microplastic distribution in agricultural soils in Guyuan City, China, finding concentrations ranging from 186 to 1,286 particles per kg, with greenhouse farming soils containing 35–229% more microplastics than open fields and PE and PP being the dominant polymer types. The findings raise concern for food chain contamination and demonstrate that plastic mulch film use in facility agriculture significantly increases soil microplastic accumulation.
Abundance, spatial distribution, and characteristics of microplastics in agricultural soils and their relationship with contributing factors
Researchers found microplastic concentrations of 2,800 to 82,500 particles per kilogram in agricultural soils of Hainan Island, China, with plastic mulching, farming practices, and environmental factors all contributing to spatial variation in contamination levels.
Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China
This study provides the first comprehensive survey of plastic pollution in Chinese farmland soil, analyzing data from 163 publications covering 728 sites. The average microplastic abundance was 4,537 particles per kilogram of dry soil, with agricultural plastic films and organic waste being the biggest sources. Since China is the world's largest user of agricultural plastics, these findings highlight how farming practices can lead to significant microplastic contamination of the soil that grows our food.
Characterizing Microplastic Pollution and Microbial Community Status in Rice Paddy Soils Across Varied Environmental Settings in Songjiang, Shanghai: An Analysis of Morpho-Chemical Characteristics
Researchers characterized microplastic pollution and associated microbial communities in rice paddy soils, finding widespread microplastic contamination that correlated with shifts in soil bacterial diversity. Plastic-associated microbial communities differed from bulk soil communities, suggesting microplastics create distinct microbial niches in agricultural environments.
[Distribution and Sources of Microplastics in Farmland Soil Along the Fenhe River].
This study investigated the distribution and sources of microplastics in farmland soil along the Fenhe River in China, finding widespread contamination from agricultural plastic films and other sources. The results highlight how agricultural plastic use contributes directly to microplastic buildup in food-producing soils.
Significant influence of land use types and anthropogenic activities on the distribution of microplastics in soil: A case from a typical mining-agricultural city
Scientists surveyed microplastic pollution across five types of land in a Chinese mining-agricultural city and found the highest levels in greenhouse farmland, with nearly 3,738 particles per kilogram of soil. Agricultural plastic waste, irrigation water, and fertilizers were identified as the main sources of contamination. The study shows that farming practices are major contributors to microplastic buildup in the soil that produces our food.