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Qi Y, Zhong Y, Luo L, He J, Feng B, Zhang X, Xia Y, Ren H. Feasibility analysis of reclaimed water reuse based on water quality data and microbial community structure study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:174781. [PMID: 39094655 DOI: 10.1016/j.scitotenv.2024.174781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 07/06/2024] [Accepted: 07/12/2024] [Indexed: 08/04/2024]
Abstract
The ecological recharge of urban landscapes with reclaimed water plays a crucial role in alleviating urban water shortage. In Yinchuan, we examined the effects of recharging urban rivers with either Yellow River or reclaimed water on the abundance and diversity of microbial communities. This study aimed to support the effective utilization of reclaimed water. We monitored six sites: three in the reclaimed water recharge area (Lucaowa inlet (ZLJ), Lucaowa channel (ZLH), and Lucaowa outlet (ZLC)) and three in the Yellow River water recharge area (Ningcheng lock (FNCZ), Qingfengjie (FQFJ), and Laifosi (FLFS)). Various indicators (pH, turbidity, temperature (T), dissolved oxygen (DO), electrical conductivity (EC), chemical oxygen demand (COD), total phosphorus (TP), total nitrogen (TN), ammonia nitrogen (NH3-N), and nitrate nitrogen (NO3-N)) were used to assess the water quality. The microbial community abundance and diversity were evaluated using 16S rRNA high-throughput sequencing. The results indicated that throughout the monitoring period, the reclaimed water recharge area exhibited increased water transparency and greater microbial community abundance and diversity than the Yellow River water recharge area. However, the reclaimed water recharge area also showed significantly higher levels of nitrogen, phosphorus, organic matter, and electrical conductivity, along with an increase in Firmicutes. Seasonal changes significantly influenced water quality factors, significantly affecting Cyanobacteria and Campylobacter populations, as demonstrated by RDA analysis, which showed a close relationship between microbial communities and environmental factors. Further comparative analysis revealed that erythrocytic bacteria were predominant in the reclaimed water recharge area, whereas Actinobacteria, Planktonia, and Aspergillus spp. were more significant in the Yellow River water recharge area. Predictive analysis of microbial functions suggested that carbon and nitrogen cycle-related functions were more abundant in the reclaimed water recharge area, indicating that reclaimed water recharge could improve the self-purification capacity of the water body.
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Affiliation(s)
- Yarong Qi
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, People's Republic of China
| | - Yanxia Zhong
- School of Ecology and Environment, Ningxia University, Yinchuan 750021, People's Republic of China; Ningxia University Northwest State Key Laboratory of Land Degradation and Ecological Restoration Cultivation Base, Yinchuan 750021, People's Republic of China.
| | - Lingling Luo
- School of Ecology and Environment, Ningxia University, Yinchuan 750021, People's Republic of China; Ningxia University Northwest State Key Laboratory of Land Degradation and Ecological Restoration Cultivation Base, Yinchuan 750021, People's Republic of China
| | - Jing He
- School of Ecology and Environment, Ningxia University, Yinchuan 750021, People's Republic of China; Ningxia University Northwest State Key Laboratory of Land Degradation and Ecological Restoration Cultivation Base, Yinchuan 750021, People's Republic of China
| | - Bo Feng
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, People's Republic of China
| | - Xin Zhang
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, People's Republic of China
| | - Yuan Xia
- School of Ecology and Environment, Ningxia University, Yinchuan 750021, People's Republic of China
| | - Huiqin Ren
- School of Geography and Planning, Ningxia University, Yinchuan 750021, People's Republic of China
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Chen L, Shi Y, Wang S, Sun M, Wang M, Ren X, Gao Z, Zhou Y, Zhang J, Zhuang W, Su X, Fu Y, Wu M. Temperature and phosphorus: the main environmental factors affecting the seasonal variation of soil bacterial diversity in Nansi Lake Wetland. Front Microbiol 2023; 14:1169444. [PMID: 37455734 PMCID: PMC10348425 DOI: 10.3389/fmicb.2023.1169444] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/01/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction The soil bacteria promote the circulation conversion of lake nutrients and play an important role in maintaining the balance of the lake ecosystem. Few studies have investigated the association of seasonal variation in bacteria and environmental factors in inland freshwater lake wetlands. Nansi Lake is a large shallow freshwater lake in northern China. It is an important hub of the eastern route of the South-to-North Water Diversion Project. Methods In this study, bacterial 16S rRNA genes were used to analyze the variation of soil bacterial community diversity in Nansi Lake Wetland and its influencing factors in different seasons. Results It is showed that the phylum, family, and genus with the largest relative abundance in the soil of Nansi Lake Wetland are Proteobacteria, Nitrosomonadaceae, and MND1, respectively. There were significant seasonal differences in soil bacterial diversity in Nansi Lake Wetland, which was significantly higher in summer than in winter. Seasonal variation in environmental factors was significantly correlated with the variation in bacterial communities. Temperature and the content of available phosphorus may be the key factors influencing seasonal variation in bacterial diversity. Discussion The results of this study further enhance our understanding of the relationship between bacterial community diversity and environmental factors in the lake wetland ecosystem, which can provide scientific data for the conservation of Nansi Lake Wetland.
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Affiliation(s)
- Lei Chen
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Yuying Shi
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Shen Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Mengyao Sun
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Meng Wang
- Lunan Geo-Engineering Exploration Institute of Shandong Province, Yanzhou, Shandong, China
| | - Xiaoyue Ren
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Zenghao Gao
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Yiping Zhou
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Jie Zhang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Weijing Zhuang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Xinyue Su
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Yongchao Fu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Mengmeng Wu
- Shandong Freshwater Fisheries Research Institute, Jinan, Shandong, China
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Feng L, Zhang Z, Yang G, Wu G, Yang Q, Chen Q. Microbial communities and sediment nitrogen cycle in a coastal eutrophic lake with salinity and nutrients shifted by seawater intrusion. ENVIRONMENTAL RESEARCH 2023; 225:115590. [PMID: 36863651 DOI: 10.1016/j.envres.2023.115590] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Coastal waters are often influenced by seawater intrusion and terrestrial emissions because of its special location. In this study, the dynamics of microbial community with the role of nitrogen cycle in sediment in a coastal eutrophic lake were studied under a warm season. The water salinity gradually increased from 0.9‰ in June to 4.2‰ in July and 10.5‰ in August because of seawater invasion. Bacterial diversity of surface water was positively related with salinity and nutrients of total nitrogen (TN) as well as total phosphorus (TP), but eukaryotic diversity had no relationship with salinity. In surface water, algae belonging to Cyanobacteria and Chlorophyta were dominant phyla in June with the relative abundances of >60%, but Proteobacteria became the largest bacterial phylum in August. The variation of these predominant microbes had strong relationship with salinity and TN. In sediment, the bacterial and eukaryotic diversity was greater than that of water, and a significantly different microbial community was observed with dominant bacterial phyla Proteobacteria and Chloroflexi, and dominant eukaryotic phyla Bacillariophyta, Arthropoda, and Chlorophyta. Proteobacteria was the only enhanced phylum in the sediment with the highest relative abundance of 54.62% ± 8.34% due to seawater invasion. Denitrifying genera (29.60%-41.81%) were dominant in surface sediment, then followed by microbes related to nitrogen fixation (24.09%-28.87%), assimilatory nitrogen reduction (13.54%-19.17%), dissimilatory nitrite reduction to ammonium (DNRA, 6.49%-10.51%) and ammonification (3.07%-3.71%). Higher salinity caused by seawater invasion enhanced the accumulation of genes involved in dentrificaiton, DNRA and ammonification, but decreased genes related to nitrogen fixation and assimilatory nitrogen reduction. Significant variation of dominant genes of narG, nirS, nrfA, ureC, nifA and nirB mainly caused by the changes in Proteobacteria and Chloroflexi. The discovery of this study would be helpful to understand the variation of microbial community and nitrogen cycle in coastal lake under seawater intrusion.
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Affiliation(s)
- Lijuan Feng
- Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China; College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Zeliang Zhang
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Guangfeng Yang
- Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China.
| | - GuiYang Wu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
| | - Qiao Yang
- Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China; Donghai Laboratory, Zhoushan, 316022, People's Republic of China
| | - Qingguo Chen
- Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China
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Bernasconi R, Lund MA, Blanchette ML. Non-charismatic waterbodies and ecosystem disservices: Mine pit lakes are underrepresented in the literature. Front Microbiol 2022; 13:1063594. [PMID: 36523823 PMCID: PMC9745135 DOI: 10.3389/fmicb.2022.1063594] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/07/2022] [Indexed: 11/03/2023] Open
Abstract
Pit lakes are one of the greatest legacies of open-cut mining. Despite the potential hazards of these lakes, they represent newly formed ecosystems with great scientific and ecological potential. Although thousands of pit lakes occur on every inhabited continent, with more being created, the microbial ecology of pit lakes is relatively under-researched. We evaluated the current state of microbial research in pit lakes by performing a Web of Science search and creating a literature database. Study lakes were categorized according to location and water quality (pH and conductivity) which is a key community and environmental concern. Research technology employed in the study was also categorized. We compared research effort in lakes, rivers, and streams which are the more "charismatic" inland aquatic ecosystems. Pit lake publications on microbes from 1987 to 2022 (n = 128) were underrepresented in the literature relative to rivers and streams (n = 321) and natural lakes (n = 948). Of the 128 pit lake publications, 28 were within the field of geochemistry using indirect measures of microbial activity. Most pit lake microbial research was conducted in a few acidic lakes in Germany due to social pressure for remediation and government initiative. Relatively few studies have capitalized on emerging technology. Pit lake microbial research likely lags other more charismatic ecosystems given that they are viewed as performing "ecosystem disservices," but this is socially complex and requires further research. Improving understanding of microbial dynamics in pit lakes will allow scientists to deliver safer pit lakes to communities.
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Affiliation(s)
- Rachele Bernasconi
- Mine Water and Environment Research Centre (MiWER), School of Science, Edith Cowan University, Joondalup, WA, Australia
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Shang Y, Wu X, Wang X, Wei Q, Ma S, Sun G, Zhang H, Wang L, Dou H, Zhang H. Factors affecting seasonal variation of microbial community structure in Hulun Lake, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150294. [PMID: 34536882 DOI: 10.1016/j.scitotenv.2021.150294] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Microbial communities play an important role in water quality regulation and biogeochemical cycling in freshwater ecosystems. However, there is a lack of research on the seasonal variation in lake water microorganisms in cold environments. In this study, 16S rRNA gene high-throughput sequencing was used to explore the microbial community and its influencing factors in Hulun Lake water during different seasons. The results showed that Proteobacteria, Actinobacteria, and Bacteroidetes were the most important phyla in the microbial community of Hulun Lake, but they had significant seasonal differences in their distribution. In addition, significant seasonal differences were observed in the α diversity of microorganisms, with bacterial diversity being higher in winter than in summer. Changes in environmental variables were significantly correlated with changes in the microbial community, and the rapid changes in temperature, pH, and dissolved oxygen are potentially the major factors influencing seasonal bacterial diversity trends. The findings of the present study enhance our understanding of the microbial communities in alpine lake ecosystems and are of great significance for the management and protection of lake ecosystems.
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Affiliation(s)
- Yongquan Shang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Xiaoyang Wu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Xibao Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Qinguo Wei
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Shengchao Ma
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Guolei Sun
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Huanxin Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Lidong Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Huashan Dou
- Hulunbuir Academy of Inland Lakes in Northern Cold & Arid Areas, Hulunbuir, China.
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China.
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