The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture

doi:10.1016/j.envpol.2021.116939

	The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture
	Feng, Sansan 1,2; Lu, Hongwei 2; Liu, Yunlong 1
刊名	ENVIRONMENTAL POLLUTION
	2021-06-15
卷号	279 页码:8
关键词	Microplastics Soil Facility agriculture Remote areas Tibetan plateau
ISSN号	0269-7491
DOI	10.1016/j.envpol.2021.116939
通讯作者	Lu, Hongwei(luhw@igsnrr.ac.cn)
英文摘要	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.
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1003] ; National Natural Science Foundation of China[41890824] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20040301] ; National Key Research and Development Project[2017YFC0405900] ; CAS Interdisciplinary Innovation Team[JCTD2019-04]
WOS关键词	KNOWLEDGE GAPS ; WATER ; POLLUTION ; CONTAMINATION ; ENERGY ; DRIVEN ; RIVERS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000647790400019
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Project ; CAS Interdisciplinary Innovation Team
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162961]
专题	中国科学院地理科学与资源研究所
通讯作者	Lu, Hongwei
作者单位	1.North China Elect Power Univ, Sch Renewable Energy, Beijing 102206, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Feng, Sansan,Lu, Hongwei,Liu, Yunlong. The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture[J]. ENVIRONMENTAL POLLUTION,2021,279:8.
APA	Feng, Sansan,Lu, Hongwei,&Liu, Yunlong.(2021).The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture.ENVIRONMENTAL POLLUTION,279,8.
MLA	Feng, Sansan,et al."The occurrence of microplastics in farmland and grassland soils in the Qinghai-Tibet plateau: Different land use and mulching time in facility agriculture".ENVIRONMENTAL POLLUTION 279(2021):8.