| 我国农用土壤微塑料赋存特征及其影响因素的Meta分析 |
| 摘要点击 1727 全文点击 202 投稿时间：2024-04-10 修订日期：2024-10-12 |
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| 中文关键词 农用土壤 微塑料（MPs） 行政分区 系统综述（SR） Meta分析（MA） |
| 英文关键词 agricultural soil microplastics（MPs） administrative regions systematic review （SR） Meta-analysis（MA） |
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| 中文摘要 |
| 土壤微塑料（MPs,粒径小于5 mm）对农业环境和粮食安全生产的潜在威胁,已成为人们关注的热点问题之一,但关于我国农用土壤MPs污染特征及其影响因素的系统研究还很少. 利用Meta分析方法,依据从2020~2023年的85篇文献中提取的6 694个样本土壤的MPs及其相关的环境因子（温度、降水量、土壤酸碱度、有机碳）和社会经济因子（常住人口、人均地区生产总值、人均工业生产总值、人均耕地面积）的数据,综合分析了我国6个行政区农用土壤的MPs污染特征及影响土壤MPs积累的关键因素. 结果表明,土壤MPs有（半）透明、黑色、白色、黄色、蓝、绿和红等6种颜色；有碎片、纤维、薄膜、颗粒和泡沫等5种形状；粒径大小在0.01~5.0 mm之间；有聚乙烯（PE）、聚丙烯（PP）、聚苯乙烯（PS）、聚酯（PES）、聚对苯二甲酸乙二醇酯（PET）、聚氯乙烯（PVC）、人造丝（RY）、聚丙烯腈（PAN）和聚酰胺（PA）等9种类型. 不同区域土壤MPs的丰度梯度为：中南地区>西北地区>西南地区>华东地区>华北地区>东北地区. （半）透明（27.6%）、碎片（32.2%）、粒径在0.01~0.5 mm（66.3%）和PE（37%）类型的MPs检出率最高. 土壤微塑料特征是自然环境因子（温度、降水量、土壤酸碱度、有机碳）与社会因子（常住人口、人均地区生产总值、人均工业生产总值、人均耕地面积）共同作用的结果. |
| 英文摘要 |
| The potential threat of soil microplastics （MPs, particle sizes smaller than 5 mm） to the agricultural environment and food security production has become a hot issue, but there are few systematic studies on the characteristics and influencing factors of MP pollution in agricultural soil in China. Based on the data of soil MPs and related environmental factors （temperature, precipitation, soil pH, and organic carbon） and social and economic factors （permanent population, gross regional product per capita, gross industrial product per capita, and cultivated land area per capita） extracted from 6 694 samples from 85 published studies from 2020 to 2023, meta-analysis was performed. The characteristics of MPs pollution in agricultural soil and the key factors affecting the accumulation of MPs in soil in six administrative regions of China were analyzed. The results showed that soil MPs had six colors： （semi-） transparent, black, white, yellow, blue, green, and red. There were five kinds of shapes： fragment, fiber, film, particle, and foam. The particle size was between 0.01 and 5.0 mm. There were nine types of MPs： polyethylene （PE）, polypropylene （PP）, polystyrene （PS）, polyester （PES）, polyethylene terephthalate （PET）, polyvinyl chloride （PVC）, rayon （RY）, polyacrylonitrile （PAN）, and polyamide （PA）. The abundance gradient of soil MPs in different regions was as follows： South-central region > Northwest region > Southwest region > East China region > North China region > Northeast region. The （semi-） transparent （27.6%）, fragmented （32.2%）, 0.01~0.5 mm （66.3%）, and PE （37%） types of MPs had the highest detection rates. The characteristics of soil MPs are the result of natural environmental factors （temperature, precipitation, soil pH, organic carbon） and social factors （permanent population, gross regional product per capita, gross industrial product per capita, cultivated land area per capita）. |
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