干旱区生态环境知识资源中心(Arid): Wind erosion induced low-density microplastics migration at landscape scale in a semi-arid region of northern China

Arid

DOI	10.1016/j.scitotenv.2023.162068
	Wind erosion induced low-density microplastics migration at landscape scale in a semi-arid region of northern China
	Yang, Meiniu; Tian, Xia; Guo, Zhongling; Chang, Chunping; Li, Jifeng; Guo, Zixiao; Li, Huiru; Liu, Ruijuan; Wang, Rende; Li, Qing; Zou, Xueyong
通讯作者	Guo, ZL ; Chang, CP
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	871
英文摘要	Microplastics (MPs) have been extensively investigated in terrestrial environments, while the occurrence and move-ment of MPs at the landscape scale in semi-arid regions with serious wind erosion are less well studied. Here, we sam-pled film mulching farmland and downwind nearby grassland surface soils in a semi-arid region of northern China to explore the distribution of MPs at different downwind distances and the potential environmental risk to the local land-scapes. The results revealed that the MP abundances presented a decreasing trend with increasing downwind distance (Mann-Kendall test, P < 0.01). The MP size distributions at different distances showed similar sigmoid trends described by logistic models. MP fiber size (500-2000 mu m) abundance in the farmland was higher than that of the grassland. By contrast, MP non -fiber size (<1000 mu m) abundance of farmlands was less than that of the grassland. The abundances of fibers larger than 500 mu m and non -fibers larger than 1000 mu m in size decreased exponentially with increasing down-wind distance. The size of transported MPs at the landscape scale was larger than that of long-distance dispersal. The migration of MPs from farmlands can pose a potential threat to the downwind landscape, leading the downwind grass-land to be a potential MP emission source. This study presents the first insights into the MPs distribution among differ-ent downwind distances at the landscape scale. Future research is required to deploy aeolian sediment sampling devices and establish the connection between the field data and the MP emission models.
英文关键词	Low -density microplastics Landscape -scale migration Wind erosion Downwind distances
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000950371600001
WOS关键词	ATMOSPHERIC TRANSPORT ; INNER-MONGOLIA ; SOIL ; PARTICLES ; KNOWLEDGE ; PLASTICS ; PLATEAU ; IMPACTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398509
推荐引用方式 GB/T 7714	Yang, Meiniu,Tian, Xia,Guo, Zhongling,et al. Wind erosion induced low-density microplastics migration at landscape scale in a semi-arid region of northern China[J],2023,871.
APA	Yang, Meiniu.,Tian, Xia.,Guo, Zhongling.,Chang, Chunping.,Li, Jifeng.,...&Zou, Xueyong.(2023).Wind erosion induced low-density microplastics migration at landscape scale in a semi-arid region of northern China.SCIENCE OF THE TOTAL ENVIRONMENT,871.
MLA	Yang, Meiniu,et al."Wind erosion induced low-density microplastics migration at landscape scale in a semi-arid region of northern China".SCIENCE OF THE TOTAL ENVIRONMENT 871(2023).