Response of soil dissolved organic matter to microplastic addition in Chinese loess soil

doi:10.1016/j.chemosphere.2017.07.064

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Response of soil dissolved organic matter to microplastic addition in Chinese loess soil
	Liu, Hongfei 1,3; Yang, Xiaomei 1,4; Liu, Guobin 1,2; Liang, Chutao 1,2; Xue, Sha 1,2; Chen, Hao 4; Ritsema, Coen J.4; Geissen, Violette 4,5; Xue, S (reprint author), Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Arming Loess Pl, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2017
发表期刊	CHEMOSPHERE
ISSN	0045-6535
通讯作者邮箱	xuesha100@163.com
卷号	185 页码:907-917
摘要	Plastic debris is accumulating in agricultural land due to the increased use of plastic mulches, which is causing serious environmental problems, especially for biochemical and physical properties of the soil. Dissolved organic matter (DOM) plays a central role in driving soil biogeochemistry, but little information is available on the effects of plastic residues, especially microplastic, on soil DOM. We conducted a soil-incubation experiment in a climate-controlled chamber with three levels of microplastic added to loess soil collected from the Loess Plateau in China: 0% (control, CK), 7% (M1) and 28% (M2) (w/w). We analysed the soil contents of dissolved organic carbon (DOC), dissolved organic nitrogen (DON), NH4+, NOT, dissolved organic phosphorus (DOP), and PO43- and the activities of fluorescein diacetate hydrolase (FDAse) and phenol oxidase. The higher level of microplastic addition significantly increased the nutrient contents of the DOM solution. The lower level of addition had no significant effect on the DOM solution during the first seven days, but the rate of DOM decomposition decreased in M1 between days 7 and 30, which increased the nutrient contents. The microplastic facilitated the accumulation of high-molecular weight humic-like material between days 7 and 30. The DOM solutions were mainly comprised of high molecular-weight humic-like material in CK and Ml and of high-molecular-weight humic-like material and tyrosine-like material in M2. The Microplastic stimulated the activities of both enzymes. Microplastic addition thus stimulated enzymatic activity, activated pools of organic C, N, and P, and was beneficial for the accumulation of dissolved organic C, N and P. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	Microplastic Dissolved Organic Carbon (Doc) Dissolved Organic Nitrogen (Don) Dissolved Organic Phosphorus (Dop) Excitation-emission Matrix (Eem)
学科领域	Environmental Sciences & Ecology
DOI	10.1016/j.chemosphere.2017.07.064
URL	查看原文
收录类别	SCI
出版地	OXFORD
语种	英语
WOS记录号	WOS:000408597300103
出版者	PERGAMON-ELSEVIER SCIENCE LTD
项目资助者	Natural Science Foundation of China [41371510]; West Young Scholars Project of the Chinese Academy of Sciences [XAB2015A05]; EU Horizon 2020 project [ISQAPER: 635750] ; Natural Science Foundation of China [41371510]; West Young Scholars Project of the Chinese Academy of Sciences [XAB2015A05]; EU Horizon 2020 project [ISQAPER: 635750]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7917
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Xue, S (reprint author), Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Arming Loess Pl, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 3.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China 4.Wageningen Univ, Soil Phys & Land Management, POB 47, NL-6700 AA Wageningen, Netherlands 5.Univ Bonn, Inst Crop Sci & Resources Conservat INRES, D-53115 Bonn, Germany 6.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hongfei,Yang, Xiaomei,Liu, Guobin,et al. Response of soil dissolved organic matter to microplastic addition in Chinese loess soil[J]. CHEMOSPHERE,2017,185:907-917.
APA	Liu, Hongfei.,Yang, Xiaomei.,Liu, Guobin.,Liang, Chutao.,Xue, Sha.,...&Xue, S .(2017).Response of soil dissolved organic matter to microplastic addition in Chinese loess soil.CHEMOSPHERE,185,907-917.
MLA	Liu, Hongfei,et al."Response of soil dissolved organic matter to microplastic addition in Chinese loess soil".CHEMOSPHERE 185(2017):907-917.