Effects of Microplastics Migration on Farmland Soil Physical and Chemical Properties Under Leaching Conditions

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Water, Air, & Soil Pollution Pub Date : 2024-12-09 DOI:10.1007/s11270-024-07690-5

Yuan-zhou Fu, Jin-yan Yang

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Abstract

Microplastics (MPs) in soil can affect soil quality, and interfere with the material cycle and energy flow of terrestrial ecosystem. To explore the migration of MPs in soil and its effect on farmland soil quality, a soil column experiment was conducted to simulate the migration of MP particles in soil under rainful condition. The results showed that at a mass ratio of 2%, the migration capacity of polystyrene, polyethylene, polypropylene, polyvinyl chloride, and polylactic acid MPs in the soil columns was similar. The presence and type of MPs had no significant effect on soil bulk density. The influence of MPs on the quantity of water stable macro-aggregates (> 0.25 mm) was more significant in the top soil layer (0–5 cm) where the MPs were added than in the middle and bottom layers (5–20 cm). Under leaching, MPs decreased the available phosphorus concentration in soil.The results of this study can improve the understanding of the effects of MPs on the soil quality and provide reference information for the environmental risk assessment of MPs in farmland soils.

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浸出条件下微塑料迁移对农田土壤理化性质的影响

土壤中的微塑料会影响土壤质量，干扰陆地生态系统的物质循环和能量流动。为探讨MPs在土壤中的迁移及其对农田土壤质量的影响，采用土壤柱试验模拟降雨条件下土壤中MPs颗粒的迁移。结果表明，在质量比为2%时，聚苯乙烯、聚乙烯、聚丙烯、聚氯乙烯和聚乳酸MPs在土柱中的迁移能力相似。MPs的存在和类型对土壤容重无显著影响。MPs对水稳性大团聚体（> 0.25 mm）数量的影响在添加MPs的表层（0 ~ 5 cm）比在添加MPs的中底层（5 ~ 20 cm）更为显著。淋溶过程中，MPs降低了土壤有效磷浓度。本研究结果可以提高对多磺酸盐对土壤质量影响的认识，并为多磺酸盐在农田土壤中的环境风险评价提供参考信息。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.