IMHE OpenIR  > 山地灾害与地表过程重点实验室
Available forms of nutrients and heavy metals control the distribution of microbial phospholipid fatty acids in sediments of the Three Gorges Reservoir, China
Sun, Hongyang1; Wu, Yanhong1; Bing, Haijian1; Zhou, Jun1; Li, Na1,2
2018
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
EISSN1614-7499
Volume25Issue:6Pages:5740-5751
SubtypeArticle
AbstractThe construction of the Three Gorges Reservoir (TGR) as well as the development of local industry and agriculture not only had tremendous impacts on the environment but also affected human health. Although water, soil, and air in the TGR have been well studied for environmental risk assessment, very little information is available on benthic sediments and microorganisms. In this study, sedimentary samples were collected along the main stream of the TGR to examine microbial phospholipid fatty acids (PLFA) and relevant variables (e.g., nutrients and heavy metals) after the full operation of the TGR. The results showed that there were prominent trends (increase or decrease) of sedimentary PLFAs and properties from downstream to upstream. Bacteria-specific PLFA decreased toward the dam, while fungi-specific PLFA did not show any significant trend. The PLFA ratio of fungi to bacteria (F/B) increased along the mainstream. The total PLFA concentration, which represents the microbial biomass, decreased significantly toward the dam. Upstream and downstream sampling points were clearly distinguished by PLFA ordination in the redundancy analysis (RDA). That finding showed microbial PLFAs to have an obvious distribution pattern (increase or decrease) in the TGR. The PLFA distribution was markedly controlled by nutrients and heavy metals, but nutrients were more important. Moreover, among nutrients, Bio-P, NH4 (+)-N, NO3 (-)-N, and DOC were more important than TP, TN, TOC, and pH in controlling PLFA distribution. For heavy metals, Tl, V, Mo, and Ni were more important than Zn, Cu, Cd, and Pb. These findings suggested that Tl, V, Mo, and Ni should not be ignored to guard against their pollution in the TGR, and we should pay attention to them and make them our first priority. This study highlighted that the construction of the TGR changed riverine environments and altered microbial communities in sediments by affecting sedimentary properties. It is a reminder that the microbial ecology of sediment as an indicator should be considered in assessing the eco-risk of the TGR.
KeywordBottom sediments Microbial community Phospholipid fatty acids Nutrients Heavy metal
DOI10.1007/s11356-017-0824-2
Indexed BySCI
WOS KeywordLEVEL FLUCTUATION ZONE ; CHANGJIANG YANGTZE-RIVER ; COMMUNITY COMPOSITION ; BACTERIAL COMMUNITIES ; ENVIRONMENTAL-FACTORS ; ORGANIC-CARBON ; WATER ; BIOMASS ; DIVERSITY ; POLLUTION
Language英语
Quartile3区
Funding ProjectKey Laboratory of Mountain Surface Processes and Ecological Regulation in Chinese Academy of Sciences ; Science Foundation for Young Scientists, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences
TOP
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000425971700063
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/21285
Collection山地灾害与地表过程重点实验室
山地表生过程与生态调控重点实验室
Corresponding AuthorWu, Yanhong
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Alpine Ecosyst Observat & Expt Stn Gongga Mt, Key Lab Mt Surface Proc & Ecol Regulat, 9 Block 4,Renminnanlu Rd, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Sun, Hongyang,Wu, Yanhong,Bing, Haijian,et al. Available forms of nutrients and heavy metals control the distribution of microbial phospholipid fatty acids in sediments of the Three Gorges Reservoir, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(6):5740-5751.
APA Sun, Hongyang,Wu, Yanhong,Bing, Haijian,Zhou, Jun,&Li, Na.(2018).Available forms of nutrients and heavy metals control the distribution of microbial phospholipid fatty acids in sediments of the Three Gorges Reservoir, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(6),5740-5751.
MLA Sun, Hongyang,et al."Available forms of nutrients and heavy metals control the distribution of microbial phospholipid fatty acids in sediments of the Three Gorges Reservoir, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.6(2018):5740-5751.
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