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61,005 resultsShowing papers similar to Microplastic contamination in cotton soils following long-term mulching: A field study for the Xinjiang production and construction corps in China
ClearCropland Microplastics in Xinjiang: Unveiling Distribution and Impact of Mulching Film Residues
This study assessed microplastic distribution and the contribution of agricultural mulching film residues across croplands in Xinjiang, China, finding widespread polyethylene microplastic contamination that correlates with mulch film use intensity and poses risks to soil health and food safety.
Microplastic Accumulation in Agricultural Soils with Different Mulching Histories in Xinjiang, China
Researchers found that microplastic accumulation in agricultural soils of Xinjiang, China increases significantly with mulching history, with fields mulched for over 20 years containing substantially more microplastics across all soil layers.
Occurrence status of microplastics in main agricultural areas of Xinjiang Uygur Autonomous Region, China
Agricultural soils in Xinjiang, China, were surveyed for microplastic contamination, revealing widespread presence in major farming regions where plastic mulch films and irrigation systems are heavily used. The study provides one of the first regional-scale assessments of microplastic pollution in this important agricultural area.
Distribution of microplastics in mulched soil in Xinjiang, China
Researchers measured microplastic distribution in plastic-mulched farmland soils in Xinjiang, China, finding that plastic particles concentrate in the top soil layer where mulch films fragment. The dominant polymer found was polyethylene, consistent with the plastic mulch films widely used in agriculture across the region.
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.
Duration- and area-dependent influences of plastic film mulch on soil microplastics abundance
Researchers conducted a field campaign combined with remote sensing to investigate how the duration and coverage area of plastic film mulching affect microplastic abundance in agricultural soils in northern China's agro-pastoral ecotone, finding that microplastic concentrations ranged from 41.7 to 787.5 items per kilogram and positively correlated with mulching duration.
Occurrence characteristics, source analysis, and risk assessment of microplastics in agricultural soils: A case study on Shihezi Reclamation Area, Xinjiang, China
Microplastic occurrence was characterized in agricultural soils of the Shihezi Reclamation Area, Xinjiang — a region with decades of plastic film mulching — finding high-density PE and PP fragments as dominant types, with mulch film degradation as the primary source.
Microplastics in arid soils: Impact of different cropping systems (Altay, Xinjiang)
Researchers investigated microplastic contamination in farmland soils in an arid region of China, finding extremely high concentrations averaging over 52,000 particles per kilogram of soil. Polyethylene from plastic mulch film accounted for over 90% of the microplastics, with fields growing tall crops like sunflower and maize showing more contamination than potato fields. The study demonstrates that agricultural plastic mulch use is a major source of soil microplastic pollution, particularly in arid farming regions.
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.
Impact of plastic film mulching on microplastic in farmland soils in Guangdong province, China
Researchers surveyed farmland in Guangdong, China's largest economic province, to determine how much plastic mulch film contributes to soil microplastic pollution. They found that fields using plastic mulch had significantly higher microplastic levels than those without, and the contamination correlated with years of mulch use. The study helps clarify the direct agricultural contribution to soil microplastic pollution in regions with many overlapping pollution sources.
Occurrence and characteristics of microplastics in soils from greenhouse and open-field cultivation using plastic mulch film
Researchers surveyed microplastic contamination in agricultural soils across three regions in China, comparing greenhouse and open-field cultivation that uses plastic mulch film. They found that microplastic abundance varied significantly by region and that the type of mulching practice accounted for over 34% of the variation in microplastic composition. The study provides important baseline data on how plastic film use in farming contributes to soil microplastic pollution.
Distribution and weathering characteristics of microplastics in paddy soils following long-term mulching: A field study in Southwest China
Researchers investigated microplastic distribution in paddy soils following long-term plastic film mulching in Southwest China, finding that ten years of continuous mulching significantly increased filmy microplastic accumulation and that weathering altered the chemical properties of these particles.
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.
Characteristics and Risk Assessment of Microplastics in Farmland Soil in Kashgar, Xinjiang
Researchers sampled farmland soils in Kashgar, China, and found microplastics in all tested fields, with film-like and fibrous shapes dominating and polyethylene being the most common plastic type. Cotton fields and greenhouses showed moderate pollution levels, raising concerns about microplastic accumulation in agricultural soils and its potential effects on food production.
The persistently breaking trade-offs of three-decade plastic film mulching: Microplastic pollution, soil degradation and reduced cotton yield
A study of cotton fields in northwest China with 3-32 years of continuous plastic mulch use found that microplastic abundance in soil increased exponentially with mulching duration, while soil physical properties degraded and cotton root traits and yields declined in heavily mulched plots. The results challenge the assumed economic trade-off of plastic mulching, suggesting decades of cumulative MP pollution eventually costs more in yield than it provides in early-season benefits.
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.
Agricultural plastic mulching as a source of microplastics in the terrestrial environment
Researchers analyzed 384 soil samples from 19 Chinese provinces and found that macroplastic fragments were concentrated in agricultural fields with plastic mulch film use, providing large-scale field evidence linking agricultural mulching to terrestrial plastic contamination.
The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture
Researchers investigated microplastic contamination in farmland and grassland soils on the remote Qinghai-Tibet Plateau in China. The study found an average of about 50 microplastic particles per kilogram of soil, with plastic film and polyester being the most common types. Notably, longer use of plastic mulch in farming was linked to higher microplastic levels, suggesting that agricultural plastic use is a key source of soil contamination even in remote regions.
Characteristics of microplastics in dryland soils after long‐term film mulching and the effect of cropping type in western Liaoning Province, China
Fields in a semi-arid region of China that had been covered with agricultural plastic film for over a decade showed significant microplastic accumulation in the soil, with fragment shapes dominating and concentrations varying by crop type. Different crops influenced both the abundance and characteristics of microplastic particles, likely due to differences in tillage, root activity, and film use patterns. This study adds to growing evidence that agricultural plastic mulching is a major driver of farmland microplastic pollution with potential consequences for soil health and crop safety.
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.
Effects of residual mulching films with different mulching years on the diversity of soil microbial communities in typical regions
Researchers examined four cotton fields in Xinjiang, China with varying polyethylene mulch film histories (0-25 years) using high-throughput sequencing to assess how residual film and microplastics affect soil microbial communities. They found that short-term mulching (0-10 years) increased microbial diversity while continuous 25-year mulching significantly decreased bacterial diversity, with Proteobacteria and Ascomycetes dominating, and residual film accumulation reducing bacterial community diversity without significantly impacting fungal diversity.
Distinct soil microplastic distributions under various farmland-use types around Urumqi, China
Microplastic distribution was characterized in soils from greenhouse, crop field, and vegetable field land-use types around Urumqi in arid northwestern China. Greenhouse soils had the highest microplastic abundance, film-shaped particles dominated at 85.93%, and polyethylene was the most common polymer type across all land-use categories.
Plastic mulch film induced soil microplastic enrichment and its impact on wind-blown sand and dust
Field experiments in semi-arid northern China showed that plastic mulch film use significantly enriched microplastics in surface soils compared to unfilmed plots, and that wind-blown sand and dust from mulched farmland transported microplastics to surrounding environments.
Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China
This review examines plastic pollution in Chinese farmland soils, finding that agricultural practices like mulch film use and sewage sludge application are major sources of both macro- and microplastics that accumulate over time.