兰州大学机构库
Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations
2023-10-15
Online publication date2023-09
Source PublicationWATER RESEARCH   Impact Factor & Quartile
ISSN0043-1354 ; 1879-2448
EISSN1879-2448
Volume245
page numbers13
AbstractPolyethylene film mulching is a key technology for soil water retention in dryland agriculture, but the aging of the films can generate a large number of microplastics with different shapes. There exists a widespread misunderstanding that the concentrations of microplastics might be the determinant affecting the diversity and assembly of soil bacterial communities, rather than their shapes. Here, we examined the variations of soil bacteria community composition and functioning under two-year field incubation by four shapes (ball, fiber, fragment and powder) of microplastics along the concentration gradients (0.01%, 0.1% and 1%). Data showed that specific surface area of microplastics was significantly positively correlated with the variations of bacterial community abundance and diversity (r=0.505, p<0.05). The fragment- and fiber-shape microplastics displayed more pronounced interfacial continuity with soil particles and induced greater soil bacterial alpha-diversity, relative to the powder- and ball-shape ones. Strikingly, microplastic concentrations were not significantly correlated with bacterial community indices (r=0.079, p>0.05). Based on the variations of the beta NTI, bacterial community assembly actually followed both stochastic and deterministic processes, and microplastic shapes significantly modified soil biogeochemical cycle and ecological functions. Therefore, the shapes of microplastics, rather than the concentration, significantly affected soil bacterial community assembly, in association with microplastic-soilwater interfaces.
KeywordMicroplastics pollutant Shape and concentration Interface structure Bacterial community assembly Diversity and functioning
PublisherPERGAMON-ELSEVIER SCIENCE LTD
DOI10.1016/j.watres.2023.120581
Indexed BySCIE
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Water Resources
WOS SubjectEngineering, Environmental ; Environmental Sciences ; Water Resources
WOS IDWOS:001081785600001
Original Document TypeArticle
PMID 37703757
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568460
Collection兰州大学
Corresponding AuthorTao, Hong-Yan; Xiong, You-Cai
Affiliation
1.Lanzhou Univ, Coll Ecol, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou 730000, Peoples R China;
2.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Peoples R China;
3.Shenyang Agr Univ, Coll Land & Environm, Shenyang 110866, Peoples R China;
4.Chinese Acad Agr Sci, Inst Urban Agr, Chengdu 610095, Peoples R China;
5.Qinghai Normal Univ, Sch Life Sci, Xining 810001, Qinghai, Peoples R China
First Author AffilicationLanzhou University
Corresponding Author AffilicationLanzhou University
Recommended Citation
GB/T 7714
Wang, Peng-Yang,Zhao, Ze-Ying,Xiong, Xiao-Bin,et al. Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations[J]. WATER RESEARCH,2023,245.
APA Wang, Peng-Yang.,Zhao, Ze-Ying.,Xiong, Xiao-Bin.,Wang, Ning.,Zhou, Rui.,...&Xiong, You-Cai.(2023).Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations.WATER RESEARCH,245.
MLA Wang, Peng-Yang,et al."Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations".WATER RESEARCH 245(2023).
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