干旱区生态环境知识资源中心(Arid): Distinct soil microplastic distributions under various farmland-use types around Urumqi, China

Arid

DOI	10.1016/j.scitotenv.2022.159573
	Distinct soil microplastic distributions under various farmland-use types around Urumqi, China
	Li, Wenfeng; Wang, Shuzhi; Wufuer, Rehemanjiang; Duo, Jia; Pan, Xiangliang
通讯作者	Pan, XL
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	857
英文摘要	Very little is known about the occurrence of microplastics in the soils of various land uses, especially their distributional characteristics in the soils of arid areas. In this study, 24 sampling sites across three soil layers were investigated for three different farmland-use types (greenhouses, crop fields and vegetable fields) in the main agricultural and pastoral areas around Urumqi, China. The results demonstrated that the dominant sizes of soil microplastics were 0.2-0.5 and 0.5-1.0 mm, the main shape was film (85.93 %), the main color was white, and the main polymer was polyethylene (93.1 %), indicating that most microplastics derive from the damage to residual mulches. The microplastics abundance was highest in the greenhouse plots (7763 +/- 2773 items/kg), followed by the vegetable plots (4128 +/- 2235 items/kg) and then the crop fields (3178 +/- 3172 items/kg). No significant differences were observed among the abundances of microplastics in the 0-10 cm (1822 +/- 1345 items/kg), 10-20 cm (1566 +/- 1139 items/kg) and 20-30 cm (1309 +/- 1028 items/kg) layers, suggesting that microplastics can migrate to the deeper soil layer and are strongly influenced by tillage disturbance. The abundance of microplastics in the north of Urumqi was found to be higher than in the south, which is closely related to the division of agricultural functional zones and the intensity of agricultural management practices. It was found that different cropping characteristics and modes of agricultural use affect the abundance and migration of microplastics in various farmland-use types, and thus their distribution. This study provides important data for follow-up research on microplastics in arid terrestrial ecosystems, and corresponding policymaking on the management of these materials.
英文关键词	Microplastics Distribution characteristics Farmland-use types Soil depth Urumqi
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000897151600001
WOS关键词	KNOWLEDGE GAPS ; PLASTICS ; POLLUTION
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/2XILL650/398474
推荐引用方式 GB/T 7714	Li, Wenfeng,Wang, Shuzhi,Wufuer, Rehemanjiang,et al. Distinct soil microplastic distributions under various farmland-use types around Urumqi, China[J],2023,857.
APA	Li, Wenfeng,Wang, Shuzhi,Wufuer, Rehemanjiang,Duo, Jia,&Pan, Xiangliang.(2023).Distinct soil microplastic distributions under various farmland-use types around Urumqi, China.SCIENCE OF THE TOTAL ENVIRONMENT,857.
MLA	Li, Wenfeng,et al."Distinct soil microplastic distributions under various farmland-use types around Urumqi, China".SCIENCE OF THE TOTAL ENVIRONMENT 857(2023).