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Water
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Environment and Ecosystems Research for Natural Waters
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Special Issue "Environment and Ecosystems Research for Natural Waters"

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

Deadline for manuscript submissions: 31 August 2023 | Viewed by 1354

Special Issue Editor

Prof. Dr. Yuqiang Tao
E-Mail Website
Guest Editor
College of Oceanography, Hohai University, Nanjing, China
Interests: polycyclic aromatic hydrocarbons; eutrophication; bioaccumulation; plankton; ecological regime shift; sedimentary records; organic pollutants; microplastics; lake; lagoon

Special Issue Information

Dear Colleagues,

The scope of this Special Issue is Environment and Ecosystems Research for Natural Waters, including lakes, lagoons, oceans, reserviors, and rivers. The scope includes, but is not limited to, (1) occurrence, distribution, and fate of organic pollutants, heavy metals, and microplastics in natural waters; (2) eutrophication, ecosystem, ecological regime shift; (3) sedimentary records for environment and ecosystems of natural waters; (4) cycling and burial of contaminants, and C, N, and P in natural waters; (5) influences of climate change on environment and ecosystems of natural waters; (6) the interactions among contaminants, eutrophication, ecosystem, and climate change.

Prof. Dr. Yuqiang Tao
Guest Editor

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 2200 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

  • natural waters
  • contaminants
  • eutrophication
  • ecosystem
  • climate change
  • sedimentary record
  • algal bloom
  • ecological regime shift
  • carbon burial
  • microplastics

Published Papers (2 papers)

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Article
Numerical Modelling of a Dam-Regulated River Network for Balancing Water Supply and Ecological Flow Downstream
by
Yuxuan Gao
,
Wei Xiong
and
Chenhao Wang
Water 2023, 15(10), 1962; https://doi.org/10.3390/w15101962 - 22 May 2023
Viewed by 358
Abstract
Dam operation is regarded as an effective way to increase water, food, and energy security for society. However, with the increasing water demand and frequent extreme droughts, numerous rivers worldwide go through periods of water scarcity and water ecosystem deterioration to varying degrees. [...] Read more.
Dam operation is regarded as an effective way to increase water, food, and energy security for society. However, with the increasing water demand and frequent extreme droughts, numerous rivers worldwide go through periods of water scarcity and water ecosystem deterioration to varying degrees. Balancing the water supply and ecological flow of the dam-regulated river network is essential in the context of river restoration. In this study, we proposed a hydrodynamic and water quality model of a dam-regulated river network balancing water supply and ecological flow using the Environmental Fluid Dynamics Code (EFDC). A section of Jinjiang watershed located in the southwestern of China was chosen as the study area. Firstly, the model was calibrated and validated. By comparing the simulated values with the measured values, the statistical analysis results showed that the relative root mean-squared error (RRMSE) values of water level, COD and NH3-N were 5.5–8.1%, 23.6% and 28.4%, respectively, indicating an adequate degree of agreement between simulation and observation. Based on the established model, dam operation schemes under a dry hydrologic scenario and emergency contamination scenario were formulated to ensure the requirement of ecological water flow and water quality simultaneously. For the dry hydrologic scenario, the ecological water requirement could be satisfied through the dam operation. However, in an emergency contamination scenario, regional water quality requirements cannot be met through dam operation. The dam operation only plays a role in controlling the scope of pollution. This study is expected to provide scientific support for dam-regulated river network management and downstream river ecosystem protection. Full article
(This article belongs to the Special Issue Environment and Ecosystems Research for Natural Waters)
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Article
Risk Assessment of Dissolved Trace Elements and Heavy Metals in the Upper Reaches of the Yangtze River, China
by
Yuanyuan Chen
,
Fei Xiong
,
Dongdong Zhai
,
Hongyan Liu
,
Xinbin Duan
,
Daqing Chen
,
Wei Jiang
and
Bo Li
Water 2023, 15(7), 1330; https://doi.org/10.3390/w15071330 - 28 Mar 2023
Viewed by 649
Abstract
The Yangtze River Basin, one of China’s five major watersheds and a primary source of drinking water for the country, is experiencing serious environmental pollution as heavy metals are discharged into its rivers. To evaluate the water quality of the river, determined water [...] Read more.
The Yangtze River Basin, one of China’s five major watersheds and a primary source of drinking water for the country, is experiencing serious environmental pollution as heavy metals are discharged into its rivers. To evaluate the water quality of the river, determined water quality parameters were compared with the maximum permissible limit values recommended by the World Health Organization and Chinese drinking water standards. Physical and chemical analyses were conducted on water samples taken from 19 locations along the river’s path. The study quantified the contents of sodium (Na), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), lithium (Li), cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), scandium (Sc) and mercury (Hg). The results show that the average values of Mg, Sr, Co, Cu, Fe, Mn and Sc are higher than the historical background values. Moreover, through a correlation analysis it was concluded that these nutrients and trace metals have high values due to anthropogenic pollution in the study area. The computed WQI values range between 9.59 and 20.26, indicating excellent water quality in the river basin. Finally, hazard quotient (HQ) values show that exposure to the detected pollutants will have no adverse effects on human health and does not pose a potential non-carcinogenic risk. Full article
(This article belongs to the Special Issue Environment and Ecosystems Research for Natural Waters)
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