Yang, Jie1,3; Li, Ruijie2,3
; Zhou, Qian2,3; Li, Lianzhen2; Li, Yuan2; Tu, Chen2; Zhao, Xinyue2; Xiong, Kuanxu2; Christie, Peter1; Luo, Yongming1,2发表期刊ENVIRONMENTAL POLLUTION
ISSN0269-7491
2021-03-01
卷号272页码:7
关键词AccumulationFarmland soilLong-term fertilizationMicroplasticsMorphologyPig manure
DOI10.1016/j.envpol.2020.116028
通讯作者Luo, Yongming(ymluo@issas.ac.cn)
英文摘要Microplastics occur widely in the terrestrial environment and they currently occur in organic fertilizers applied to agricultural land. However, there is little information available on the accumulation of microplastics in soils fertilized over the long term. Here, we investigate the characteristics of microplastics in both pig manure and soil following long-term manure application in an attempt to assess their accumulation and the potential risk to agricultural soils of repeated application of pig manure. Microplastics were separated from soil and pig manure samples using a sequential flow separation and flotation method. The abundances of microplastics were 16.4 +/- 2.7 and 43.8 +/- 16.2 particles kg(-1) in control plots (CK, no manure applied) and plots amended annually with pig manure for 22 years (PM), respectively. The microplastics (especially fragments) were significantly enriched in PM-amended soil compared with the control plots. The average annual abundance of microplastics was 1250 +/- 640 particles kg(-1) in manure. Interestingly, the type and polymer composition of microplastics were very similar in the soil and manure. Differences in color and particle size indicate that microplastics sourced from pig manure may be gradually weathered and degraded after incorporation into the soil. The average accumulation rate of microplastics in the agricultural soil with long-term application of pig manure was estimated to be 3.50 +/- 1.71 million particles ha(-1) a(-1). The microplastics in the manured soil displayed complicated weathered surfaces. The presence of carbonyl groups suggests that the weathered microplastics in soil may have the potential to adsorb contaminants. (C) 2020 Elsevier Ltd. All rights reserved.
资助机构National Natural Science Foundation of China
收录类别SCI
语种英语
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000615555000083
引用统计被引频次：9[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/27381
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
通讯作者Luo, Yongming作者单位1.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Zone Environm Proc & Ecol Rem, Yantai 264003, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714Yang, Jie,Li, Ruijie,Zhou, Qian,et al. Abundance and morphology of microplastics in an agricultural soil following long-term repeated application of pig manure[J]. ENVIRONMENTAL POLLUTION,2021,272:7.
APAYang, Jie.,Li, Ruijie.,Zhou, Qian.,Li, Lianzhen.,Li, Yuan.,...&Luo, Yongming.(2021).Abundance and morphology of microplastics in an agricultural soil following long-term repeated application of pig manure.ENVIRONMENTAL POLLUTION,272,7.
MLAYang, Jie,et al."Abundance and morphology of microplastics in an agricultural soil following long-term repeated application of pig manure".ENVIRONMENTAL POLLUTION 272(2021):7.
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