干旱区生态环境知识资源中心(Arid): Occurrence of microplastics in agricultural soils in ecologically fragile areas of China

Arid

DOI	10.1016/j.scitotenv.2023.166350
	Occurrence of microplastics in agricultural soils in ecologically fragile areas of China
	Pan, Jianrui; Zhang, Qi; Zhang, Kaiyue; Zhang, Zhenming; Guo, Xuetao
通讯作者	Guo, XT
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	904
英文摘要	The pollution caused by microplastics (MPs), an emerging pollutant, has been receiving continuous concern. However, the distribution characteristics of MPs in ecologically fragile areas (EFAs), which are sensitive to environmental change and pollution, are still unclear. Here, the abundance and pollution characteristics of MPs in agricultural soils in four typical EFAs in China, namely semiarid farming-pastoral area (SFPA), desert-oasis interlaced area (DOIA), plateau composite erosion area (PCEA) and southwest karst area (SWKA) were investigated. MPs were detected in all agricultural soil samples with a mean abundance of 2685 & PLUSMN; 938 n/kg. DOIA (3193 & PLUSMN; 630 n/kg) had the largest abundance of MPs in agricultural soils, followed by SWKA (2948 & PLUSMN; 819 n/kg), SFPA (2920 & PLUSMN; 935 n/kg), and PCEA (1680 & PLUSMN; 320 n/kg). MPs in four EFAs were mostly small size (0-0.49 mm), accounted for 81.71 %. Fragmented and pelleted MPs were the main shapes, occupying for 51.26 % and 28.53 %, respectively. In addition, Fourier transform infrared (FTIR) was applied to determine the polymer types of MPs and to assess the pollution risk of MPs, which ranged from 157 to 938, indicating a moderate to high risk. The results revealed that EFAs located in remote inland areas were considerably polluted by MPs, close to the developed coastal areas. This study provided systematic data on MPs pollution of EFAs, which is crucial in preventing further environmental degradation and promoting ecological restoration.
英文关键词	Microplastics Ecologically fragile areas Agricultural soils Abundance Risk assessment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001072189000001
WOS关键词	POLYSTYRENE ; 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/2XILL650/398563
推荐引用方式 GB/T 7714	Pan, Jianrui,Zhang, Qi,Zhang, Kaiyue,et al. Occurrence of microplastics in agricultural soils in ecologically fragile areas of China[J],2023,904.
APA	Pan, Jianrui,Zhang, Qi,Zhang, Kaiyue,Zhang, Zhenming,&Guo, Xuetao.(2023).Occurrence of microplastics in agricultural soils in ecologically fragile areas of China.SCIENCE OF THE TOTAL ENVIRONMENT,904.
MLA	Pan, Jianrui,et al."Occurrence of microplastics in agricultural soils in ecologically fragile areas of China".SCIENCE OF THE TOTAL ENVIRONMENT 904(2023).