兰州大学机构库
Combined use of positive matrix factorization and 13C-15N stable isotopes to trace organic matter-bound potential toxic metals in the urban mangrove sediments
Li, Hanyi1; Wu, Jiajia1; Huang, Qian2; Lin, Lujian1; Yuan, Bo1; Wang, Qiang3; Lu, Haoliang1; Liu, Jingchun1; Hong, Hualong1; Yan, Chonglin1
2023-12-15
Online publication date2023-08
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT   Impact Factor & Quartile
ISSN0048-9697 ; 1879-1026
Volume904
page numbers13
AbstractCoastal sediments act as sinks of sediment organic matter (SOM) and metals because of their special land-sea location and depositional properties. However, there are few reports on the correlation between the sources of organic matter (OM) and associated potential toxic metals (PTMs). In this study, we combined C-N stable isotope analysis and positive matrix factorization to identify the matter and metal sources of OM and glomalin-related soil protein (GRSP) in an estuary under several decades of urbanization. The results of the positive matrix factorization (PMF) reveal a correlation between the sources of total sediment metals and the sources of OM-related metals. The sources of both SOM-bound PTMs and GRSP-bound PTMs are significantly related to the sources of total PTMs. OM sources were elucidated through 13C-15 N stable isotopes, and the potential sources of different types of OM differed. In addition, there is a significant correlation between OM-associated PTMs and organic matter sources. Interestingly, the functional groups of SOM were mainly influenced by multiple PTM sources but no OM source, while the functional groups of GRSP were regulated by a single metal source and OM source. This study deepened the understanding of the coupling between PTMs and SOM. The possibility of combined use of positive matrix factorization and 13C-15 N stable isotope tracing of metals as well as the sources of each metal fractions has been evaluated, which will provide new insights for the transportation of PTMs.
KeywordAnthropocene Trace metals Positive matrix factorization Land-Sea coordination Urbanization
PublisherELSEVIER
DOI10.1016/j.scitotenv.2023.166684
Indexed BySCIE
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:001074101200001
Original Document TypeArticle
PMID 37652389
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568895
Collection兰州大学
Corresponding AuthorHong, Hualong; Yan, Chonglin
Affiliation
1.Xiamen Univ, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Xiamen 361102, Peoples R China;
2.Johannes Gutenberg Univ Mainz, Inst Geosci, Johann-Joachim Becher Weg 21, D-55128 Mainz, Germany;
3.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China
Recommended Citation
GB/T 7714
Li, Hanyi,Wu, Jiajia,Huang, Qian,et al. Combined use of positive matrix factorization and 13C-15N stable isotopes to trace organic matter-bound potential toxic metals in the urban mangrove sediments[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,904.
APA Li, Hanyi.,Wu, Jiajia.,Huang, Qian.,Lin, Lujian.,Yuan, Bo.,...&Yan, Chonglin.(2023).Combined use of positive matrix factorization and 13C-15N stable isotopes to trace organic matter-bound potential toxic metals in the urban mangrove sediments.SCIENCE OF THE TOTAL ENVIRONMENT,904.
MLA Li, Hanyi,et al."Combined use of positive matrix factorization and 13C-15N stable isotopes to trace organic matter-bound potential toxic metals in the urban mangrove sediments".SCIENCE OF THE TOTAL ENVIRONMENT 904(2023).
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