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Water
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Biogeochemical Cycling of Nutrients in Water Environment
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Biogeochemical Cycling of Nutrients in Water Environment

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: closed (10 April 2024) | Viewed by 1447

Special Issue Editors

Dr. Wangshou Zhang

E-Mail Website
Guest Editor
Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
Interests: anthropogenic nitrogen and phosphorus inputs with water quality indicators, watershed modeling and ecological diagnosis on surface water pollution.
Dr. Xinzhong Du

E-Mail Website
Guest Editor
Institute of Agricultural Resources and Regional Planning (IARRP), The Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
Interests: watershed modelling; water quality; non-point source pollution

Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue of our journal focusing on the topic of "Biogeochemical Cycling of Nutrients in Water Environment." This Special Issue aims to bring together cutting-edge research on the processes, mechanisms, and impacts of nutrient cycling in various water environments.

The biogeochemical cycling of nutrients plays a vital role in shaping ecosystem dynamics, water quality, and the sustainability of aquatic ecosystems. This Special Issue provides an excellent opportunity for researchers, scientists, and experts in the field to contribute their latest findings, methodologies, and insights.

We invite authors to submit original research articles, reviews, or perspectives addressing various aspects of nutrient cycling in water environments. Topics of interest for this special issue include, but are not limited to, the following:

  1. Biogeochemical processes and pathways of nutrient cycling in lakes, rivers, estuaries, and coastal zones.
  2. Nutrient inputs, sources, and their impacts on water quality and ecosystem health.
  3. Assessing and modeling nutrient fluxes and transformations in aquatic systems.
  4. The influence of human activities and land-use changes on nutrient cycling in water environments.
  5. Innovative methodologies and technologies for studying nutrient cycling and its ecological consequences.
  6. Integrated management approaches for sustainable nutrient cycling and water resource protection.

Dr. Wangshou Zhang
Dr. Xinzhong Du
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biogeochemical processes
  • nutrient cycling
  • water environment
  • aquatic system
  • water resources

Published Papers (1 paper)

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Research

13 pages, 2212 KiB  
Article
The Microbial Community Composition and Nitrogen Cycling Metabolic Potential of an Underground Reservoir in Rizhao, Shandong Province, China
by Yue Chen, Xinyi Cao, Juan Zhang, Ziyao Mu, Shenjia Ma, Bojun Liu, Yufeng Cheng, Jingxuan Ren and Rana Muhammad Adnan Ikram
Water 2024, 16(4), 573; https://doi.org/10.3390/w16040573 - 15 Feb 2024
Viewed by 1166
Abstract
Constructing underground reservoirs has emerged as a crucial strategy to address the shortage of fresh water in Rizhao, Shandong Province, China. However, the water quality, microbial community composition, and biogeochemical cycling of nutrients in underground reservoirs compared to raw water remain unknown. To [...] Read more.
Constructing underground reservoirs has emerged as a crucial strategy to address the shortage of fresh water in Rizhao, Shandong Province, China. However, the water quality, microbial community composition, and biogeochemical cycling of nutrients in underground reservoirs compared to raw water remain unknown. To unveil the characteristics of microbial community structures and their nitrogen cycling metabolic potential in coastal underground reservoirs, we utilized a functional gene array (GeoChip 5.0) in conjunction with high-throughput sequencing of 16S rRNA and 18S rRNA genes. Our findings indicate that the water quality in the underground reservoir exhibits a certain degree of eutrophication compared to raw water, with higher concentrations of TN, TP, NO3−N, NO2−-N, and Chl a, but lower concentrations of DO and NH4+-N. The alpha diversity of bacterial and microeukaryotic communities was significantly lower in the underground reservoir. The bacterial community presented a stronger correlation with environmental factors than the microeukaryotic community. Regarding the relative abundance of bacterial communities, Gammaproteobacteria dominated the bacterial community in raw water, while Gammaproteobacteria and Alphaproteobacteria dominated the bacterial community in underground reservoir water. Additionally, the relative abundance of Nitrospirae was noticeably higher in the underground reservoir water. Moreover, we found significantly higher sequence abundance of the archaea Thaumarchaeota in the underground reservoir. Furthermore, our analysis revealed that, except for the amoA functional gene, which significantly increased the metabolic potential of nitrification, the metabolic potential of other microbial nitrogen functional genes was significantly reduced. This reduction may contribute to the lower concentration of NH4+-N in the underground reservoir. This study provides a comprehensive understanding of the microbial community characteristics and their nitrogen cycling metabolic potential in underground reservoirs. It serves as a valuable reference for water source selection, the formulation of water quality assurance measures, and the construction and management of underground reservoirs for subsequent impounding. Full article
(This article belongs to the Special Issue Biogeochemical Cycling of Nutrients in Water Environment)
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