气候变化领域集成服务门户(CCPortal): Fate of plastic film residues in agro-ecosystem and its effects on aggregate-associated soil carbon and nitrogen stocks

CCPortal

DOI	10.1016/j.jhazmat.2021.125954
	Fate of plastic film residues in agro-ecosystem and its effects on aggregate-associated soil carbon and nitrogen stocks
	Zhao, Ze-Ying; Wang, Peng-Yang; Wang, Yi-Bo; Zhou, Rui; Koskei, Kiprotich; Munyasya, Alex Ndolo; Liu, Shu-Tong; Wang, Wei; Su, Yong-Zhong; Xiong, You-Cai
通讯作者	Xiong, YC (通讯作者)，Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0304-3894
EISSN	1873-3336
卷号	416
英文摘要	Biodegradable (Bio) plastic films are widely viewed as promising alternative products of low-density polyethylene (LDPE) films to minimize plastic debris accumulation and pollution in agroecosystems. Yet, this speculation indeed lacks of sufficient evidences. We conducted a landfill investigation on the aging characteristics of Bio and LDPE plastic films in maize field, and the effects on soil aggregate composition and carbon & nitrogen stocks. The degradation rate of Bio film was up to 41.1% while that of LDPE film was zero. Scanning electron microscope (SEM) showed that the crack formation of Bio film had a pronounced domino effect, and FTIR showed that old Bio film displayed an extra wide peak threshold ranging from 3000 to 3500 cm- 1. Particularly, the abundance of microplastics was elevated with the increased plastic residues, and the increment mostly resulted from Bio residues. Critically, plastic residues significantly lowered the soil macro-aggregates ( 0.25 mm) proportion, while increasing that of micro-aggregates (0.1-0.25 mm) in LDPE, and silt/clay fraction (<0.1 mm) in Bio respectively. They significantly promoted total nitrogen content of the aggregates with the same size, but decreased the organic carbon content, dramatically lowering the C/N. Therefore, we first identified the fate of plastic film residues in agroecosystems and revealed the serious deficiencies of Bio plastic film.
关键词	ORGANIC-MATTER MULCH TILLAGE YIELD SYSTEM LAND SEQUESTRATION MICROPLASTICS DEGRADATION TEMPERATURE
英文关键词	Plastic residues; Biodegradable plastic film; Microplastics (MPs); Soil aggregates; Soil nutrients
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000664797900003
来源期刊	JOURNAL OF HAZARDOUS MATERIALS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254634
作者单位	[Zhao, Ze-Ying; Wang, Peng-Yang; Koskei, Kiprotich; Munyasya, Alex Ndolo; Liu, Shu-Tong; Wang, Wei; Xiong, You-Cai] Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China; [Zhao, Ze-Ying; Su, Yong-Zhong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730030, Peoples R China; [Wang, Yi-Bo; Xiong, You-Cai] Tianshui Normal Univ, Gansu Key Lab Resource Utilizat Agr Solid Wastes, Tianshui 741000, Peoples R China; [Zhou, Rui] Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China; [Zhao, Ze-Ying; Su, Yong-Zhong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Ze-Ying,Wang, Peng-Yang,Wang, Yi-Bo,et al. Fate of plastic film residues in agro-ecosystem and its effects on aggregate-associated soil carbon and nitrogen stocks[J]. 中国科学院西北生态环境资源研究院,2021,416.
APA	Zhao, Ze-Ying.,Wang, Peng-Yang.,Wang, Yi-Bo.,Zhou, Rui.,Koskei, Kiprotich.,...&Xiong, You-Cai.(2021).Fate of plastic film residues in agro-ecosystem and its effects on aggregate-associated soil carbon and nitrogen stocks.JOURNAL OF HAZARDOUS MATERIALS,416.
MLA	Zhao, Ze-Ying,et al."Fate of plastic film residues in agro-ecosystem and its effects on aggregate-associated soil carbon and nitrogen stocks".JOURNAL OF HAZARDOUS MATERIALS 416(2021).