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61,005 resultsShowing papers similar to Particle Size Distribution and Depth to Bedrock of Chinese Cultivated Soils: Implications for Soil Classification and Management
ClearImpact of soil structure and texture on occurrence of microplastics in agricultural soils of karst areas
Researchers found that soil texture is the dominant factor influencing microplastic abundance in karst agricultural soils in China, with powdered-light clay soils harboring the highest contamination at nearly 3,000 particles per kilogram.
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.
Soil horizons regulate bacterial community structure and functions in Dabie Mountain of the East China
This paper is not relevant to microplastics research — it examines how soil horizon depth influences bacterial community structure and nutrient cycling functions in mountain forest soils.
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.
Effects of soil properties and land use patterns on the distribution of microplastics: A case study in southwest China
Researchers surveyed microplastic contamination in soils across different land use types in Guizhou Province, southwest China. The study found that soil properties and land use patterns significantly influence microplastic abundance and distribution, with agricultural and urban soils generally showing higher contamination levels than less intensively managed areas.
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.
The occurrence and distributions characteristics of microplastics in soils of different land use patterns in Karst Plateau, Southwest China
Researchers surveyed microplastic contamination across five different land use types in a karst mountainous region of southwest China. The study found that all soil types were polluted with microplastics, with garden land showing the highest average abundance at 4,200 particles per kilogram, and that land use patterns and crop types influenced the characteristics and concentrations of microplastic contamination.
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.
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.
Evaluation of niche, diversity, and risks of microplastics in farmland soils of different rocky desertification areas
Researchers evaluated microplastic pollution in farmland soils across different levels of rocky desertification in Guizhou, China. The study found that microplastic diversity, distribution, and ecological risks varied significantly across desertification levels, suggesting that land degradation status influences how microplastics accumulate and behave in agricultural soils.
Research on Soil Management and Conservation
Not relevant to microplastics — this is a brief editorial introduction to a journal special issue on soil management and conservation, with no substantive content about microplastic pollution.
Microplastics occurrence and distribution characteristics in mulched agricultural soils of Guizhou province
Researchers surveyed agricultural soils in the karst landscape of Guizhou province, China, to assess microplastic contamination from plastic mulch farming. They found microplastics were widespread, with fibers and fragments being the most common types, and that contamination levels varied with mulching history and soil characteristics. The study underscores how plastic mulch used in agriculture is a significant source of soil pollution in regions with unique geological features.
National-scale distribution of micro(meso)plastics in farmland soils across China: Implications for environmental impacts
Farmland soils across 30 sites in China contained an average of 358 microplastic items/kg, with concentrations higher in arid northern regions; meta-analysis showed that while current soil levels are generally below minimum effective concentrations for harming crops and soil enzymes, they are approaching those thresholds.
Microplastics 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.
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.
[Abundances and Morphology Patterns of Microplastics Under Different Land Use Types on the Loess Plateau].
Researchers investigated the abundance and morphological patterns of microplastics across different land use types on the Loess Plateau in China, examining how agriculture, grassland, and other land uses shape microplastic accumulation in soils of this major agricultural production region.
Distribution, Environmental Risk Assessment, and Key Drivers of Microplastics in Farmland Soils Across Agricultural Zones in China
Researchers mapped the distribution and environmental risk of microplastics across a study area while identifying the key drivers of spatial variation, including land use and proximity to pollution sources. The findings provide a framework for prioritizing cleanup and management efforts in microplastic-contaminated environments.
Soil contamination and carrying capacity across the Tibetan plateau using structural equation models
This paper is not relevant to microplastics research — it assesses soil contamination levels and soil environmental carrying capacity across the Tibetan Plateau, focusing on heavy metals and nutrient conditions.
Response of the Stability of Soil Aggregates and Erodibility to Land Use Patterns in Wetland Ecosystems of Karst Plateau
This is not about microplastics — it is a soil science study examining how different land use patterns in Chinese karst plateau wetlands affect soil aggregate stability and erosion rates.
Effects of land use and landscape on the occurrence and distribution of microplastics in soil, China
Researchers investigated how land use patterns affect microplastic contamination in soils across different agricultural, orchard, grassland, and woodland areas in Yunnan Province, China. Agricultural lands, especially those with greenhouses and traditional farming, had significantly higher microplastic levels than grasslands and woodlands, with fragments being the dominant shape. The study suggests that farming practices, including plastic mulch use and fertilizer application, are major contributors to soil microplastic pollution.
Impact of Different Soil Tillage Practices on Microplastic Particle Abundance and Distribution
Field experiments across different tillage and fertilization regimes quantified microplastic abundance and vertical distribution in agricultural soils, finding that tillage practices significantly influenced how deeply microplastics are mixed through the soil profile.
Distribution characteristics and mechanism of microplastics mediated by soil physicochemical properties
Five Chinese soils varied considerably in their capacity to adsorb polystyrene microplastics, with soil organic carbon content showing the strongest positive correlation and clay content showing a negative correlation. The results help predict how soil composition will determine the fate and mobility of microplastics in different agricultural and natural landscapes.
Influences of land use and depth profile on the characteristics of microplastics in agricultural soils
Researchers examined how land use and soil depth profile influence microplastic characteristics in agricultural soils, finding that wastewater and sludge application, plastic mulching, and atmospheric deposition are key sources, and that MP type and abundance vary with soil management practice and depth, highlighting the importance of vertical distribution in soil MP studies.
Depth distribution of nano- and microplastics and their contribution to carbon storage in Chinese agricultural soils
Researchers measured nano- and microplastic concentrations at different depths in Chinese agricultural soils and found that levels were highest near the surface, declining with depth. The study estimates that carbon from these plastic particles contributes between 0.004% and 5.6% to the agricultural soil carbon pool, depending on depth. These findings highlight that plastic contamination is subtly influencing soil carbon storage, though the overall contribution remains relatively low.