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Application of Hydrochemistry and Environmental Isotopes in Groundwater Research

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

Deadline for manuscript submissions: closed (15 January 2025) | Viewed by 1780

Special Issue Editor


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Guest Editor
College of Environmental Science and Engineering, Nankai University, Tianjin, China
Interests: isotope hydrology; hydrogeology; geochemistry; hydrological modeling; hydrologic and water resource modeling and simulation; disaster management
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Special Issue Information

Dear Colleagues,

Environmental isotopes (stable and radioactive isotopes) are effective tracers for the complex behavior and processes in groundwater systems. They are also able to quantify the exchange of water and solutes between surface and groundwater compartments, driven by various hydrological processes, from precipitation to groundwater discharge. The information obtained enables us to understand the dynamics of aquifers, including their recharge, flow patterns, age, and vulnerability to contamination. Additionally, they can quantify the hydrodynamic processes that occur between groundwater and nearshore seawater, enabling important scientific issues such as seawater intrusion and the discharge of submarine groundwater to be traced.

In this Special Issue of Water, we encourage the submission of articles that describe the application of environmental isotopes combined with hydrochemical methods to explore the role of the different hydrological and hydrogeochemical processes that drive aquifer behavior in terms of groundwater chemistry and isotopic content. The scope of this Special Issue includes, but is not limited to, the following topics:

  • Geochemistry and isotope hydrology
  • Aquifer recharge and discharge dynamics
  • Groundwater–surface water interactions
  • Groundwater–seawater interactions
  • Contaminant transport and fate
  • Hydrothermal and geothermal systems
  • High-salinity aquifer systems
  • Theoretical development and modeling

I look forward to receiving your contributions.

Prof. Dr. Lixin Yi
Guest Editor

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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

  • geochemistry
  • stable isotopes
  • radioactive isotopes
  • groundwater origin
  • pollutant sources
  • geothermal systems
  • high-salinity systems

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Published Papers (1 paper)

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Research

23 pages, 8665 KiB  
Article
Hydrochemical and Isotopic Characterization of Groundwater in the Nakivale Sub-Catchment of the Transboundary Lake Victoria Basin, Uganda
by Emmanuel Nabala Hyeroba, Robert M. Kalin and Christine Mukwaya
Water 2024, 16(23), 3394; https://doi.org/10.3390/w16233394 - 25 Nov 2024
Viewed by 1300
Abstract
This study characterized groundwater resources for the Nakivale sub-catchment of the transboundary Victoria Basin in Uganda using classical hydrochemical and stable isotopic approaches. Groundwater in the study area is essential for domestic, agricultural, and industrial uses. As a sub-domain of the larger Victoria [...] Read more.
This study characterized groundwater resources for the Nakivale sub-catchment of the transboundary Victoria Basin in Uganda using classical hydrochemical and stable isotopic approaches. Groundwater in the study area is essential for domestic, agricultural, and industrial uses. As a sub-domain of the larger Victoria Basin, it also plays a crucial role in shaping the hydrological characteristics of this vital transboundary basin, both in terms of quality and quantity fronts. This makes its sustainable management and development vital. The predominant groundwater type is Ca-SO4, with other types including Ca-HCO3, Na-Cl, Na-HCO3, and Ca-Mg-SO4-Cl. Hydrochemical facies analysis highlights the importance of rock–water interactions in controlling groundwater chemistry, mainly through incongruent chemical weathering of Ca-rich plagioclase feldspars and the oxidation of sulfide minerals, such as pyrite, which are prevalent in the study area. Groundwater recharge is primarily influenced by the area’s topography, with recharge zones characterized by lineament networks, located in elevated areas. Stable isotope analyses indicate that groundwater mainly originates from local precipitation, while tritium data suggest the presence of both recent and older groundwater (likely over 20 years old). The study’s comprehensive approach and findings contribute significantly to the understanding of groundwater systems in the region, thus providing valuable insights for policymakers and stakeholders involved in water resource management and development strategies. Full article
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