中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Abundance and morphology of microplastics in an agricultural soil following long-term repeated application of pig manure

文献类型:期刊论文

作者Yang, Jie2,3; Li, Ruijie1,2; Zhou, Qian1,2; Li, Lianzhen1; Li, Yuan1; Tu, Chen1; Zhao, Xinyue1; Xiong, Kuanxu1; Christie, Peter3; Luo, Yongming1,3
刊名ENVIRONMENTAL POLLUTION
出版日期2021-03-01
卷号272页码:7
ISSN号0269-7491
关键词Accumulation Farmland soil Long-term fertilization Microplastics Morphology Pig 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.
资助项目National Natural Science Foundation of China[41877142] ; National Natural Science Foundation of China[41991330]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000615555000083
资助机构National Natural Science Foundation of China
源URL[http://ir.yic.ac.cn/handle/133337/27380]  
专题烟台海岸带研究所_近岸生态与环境实验室
烟台海岸带研究所_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, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Zone Environm Proc & Ecol Rem, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Yang, 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.
APA Yang, 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.
MLA Yang, 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.

入库方式: OAI收割

来源:烟台海岸带研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。