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首页> 外文期刊>Environmental Pollution >The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture
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The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture

机译：青藏高原农田土壤中微型塑料的发生：不同土地利用与设施农业的覆盖时间

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摘要

Microplastic (MP) pollution in the environment has aroused great concern. However, our knowledge of MP abundance and distribution in soil environment is scarce. This work investigated the MPs in the farmland and grassland at a remote area of China, namely, the eastern area of the QinghaieTibet Plateau (QTP). The average numbers of MPs were 53.2 ? 29.7 and 43.9 ? 22.3 items/kg in shallow and deep soil, respectively, from 35 soil samples. A remarkable difference in MP abundances was observed among soil samples from mulch farmland, greenhouses, farmland without covering, and grassland. The MPs were mostly in the form of a film and transparent in color in this study. The dominant polymers of MPs in the soil samples were polyester (PE) and polypropylene (PP). This study revealed the characteristics of MP distribution among different land use at the QTP, and MPs may stem from the fragmentation of plastic mulch in farmland soil. Notably, MP abundance increased with the increase in mulching time in facility agriculture. Additionally, human disturbances and increased mulching time in facility agriculture promote the fragmentation of soil MPs. This study provides important data for follow-up research on MPs in a plateau terrestrial ecosystem. 0 2021 Elsevier Ltd. All rights reserved.
机译：环境中的微塑料（MP）污染引起了极大的关注。然而，我们对土壤环境中的MP丰富和分布的了解是稀缺的。这项工作调查了中国偏远地区农田和草原的国会议员，即青海队高原（QTP）的东部地区。 MPS的平均数量为53.2？ 29.7和43.9？ 22.3分别从35种土壤样品中的浅层和深层土壤中的物品/千克。覆盖覆盖物农田，温室，农田的土壤样本中观察到MP丰度的显着差异，没有覆盖，草原。 MPS主要以薄膜的形式和本研究中的颜色透明。土壤样品中的MPS的主要聚合物是聚酯（PE）和聚丙烯（PP）。本研究揭示了QTP不同土地利用的MP分布的特点，MPS可能源于农田土壤中塑料覆盖物的碎片。值得注意的是，MP丰度随着设施农业的覆盖时间的增加而增加。此外，人类紊乱和在设施农业中增加的覆盖时间促进了土壤MPS的碎片。本研究为高原地面生态系统中的MPS进行后续研究提供了重要数据。 0 2021 Elsevier Ltd.保留所有权利。

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  • 来源
    《Environmental Pollution》 |2021年第6期|116939.1-116939.8|共8页
  • 作者

    Feng Sansan; Lu Hongwei; Liu Yunlong;

  • 作者单位

    North China Elect Power Univ Sch Renewable Energy Beijing 102206 Peoples R China|Chinese Acad Sci Inst Geog Sci & Nat Resources Res Key Lab Water Cycle & Related Land Surface Proc Beijing 100101 Peoples R China;

    Chinese Acad Sci Inst Geog Sci & Nat Resources Res Key Lab Water Cycle & Related Land Surface Proc Beijing 100101 Peoples R China;

    North China Elect Power Univ Sch Renewable Energy Beijing 102206 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microplastics; Soil; Facility agriculture; Remote areas; Tibetan plateau;

    机译：微塑料;土壤;设施农业;偏远地区;藏高原;

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