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  Subjects -> WATER RESOURCES (Total: 160 journals)
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American Journal of Water Resources
Number of Followers: 11  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2333-4797 - ISSN (Online) 2333-4819
Published by Science and Education Publishing Homepage  [75 journals]
  • Hydrochemical Assessment and Quality of Groundwater in Tchamba Prefecture,
           Upstream of the Mono River Basin, Togo

    • Authors: Agbessi Koffi Sodomon; Seyf-Laye Alfa-Sika Mande, Lallébila Tampo, Kossitse Venyo Akpataku, Moudassirou Sedou, Kossi Jorge Komlan
      Pages: 142 - 148
      Abstract: Groundwater is the most important source of water supply in Tchamba prefecture. Groundwater quality contaminations have emerged in many geographical areas due to natural environmental processes and human intervention in the geosystems. Hydrochemical evaluation of groundwater quality in the study area was investigated. The physicochemical parameters such as major ions were determined. Factor analysis was used to identify key parameters that described groundwater quality in the study area. The first two factors were considered: Factor 1 explained 53.43% of the total variance and translates the natural rainwater recharge and water-soil/rock interaction process. The second factor (F2) explained 22.05% of the total variance and expresses the anthropogenic pressure such as domestic sewage, uncontrolled landfill waste, fertilizers, and wastewater. The results showed that silicate mineral dissolution and cation exchange in aquifers play an important role in groundwater chemistry evolution.
      PubDate: 2023-10-13
      DOI: 10.12691/ajwr-11-4-3
      Issue No: Vol. 11, No. 4 (2023)
       
  • Characterization of the Hydrological Functioning of the Nanan Agricultural
           Dam in the Department of Yamoussoukro (Côte D’Ivoire)

    • Authors: Sawadogo Zounabo Epouse Kouyate; Soro Gneneyougo Emile, Kouakou Koffi Abdelaziz, Goula Bi Tié Albert, Brou Yao Casimir
      Pages: 149 - 157
      Abstract: Rainfall decline trend observed since 1970s in Côte d’Ivoire is still putting a strain on the annual recharge of dams and the satisfaction of crop irrigation water requirements. The aim of this study is to analyze the hydrological functioning of the Nanan agricultural dam in a context of climate variability. Several approaches were used to collect the data, including direct measurements, visual observation, surveys, interviews, and documentary research. The method used for the water balance was the principle of volume conservation (continuity equation), applied over two years (2016, 2017). This analysis shows that runoff accounts for 92% of the annual recharge of the Nanan dam. Of the water mobilized, 63% was used for irrigation, and uncontrollable losses amounted to 38%, of which 25% by infiltration and 12% by evaporation. The variation in annual stock was different from one year to the next, with a variation of -104,000 m3 in 2016 and +165,000 m3 in 2017. In short, the hydrological regime of the dam is closely linked to the rainfall regime. This characterisation could be used in a future climate projection simulation to analyze the impact of climate change on the dam's capacity to meet crop water requirements.
      PubDate: 2023-10-23
      DOI: 10.12691/ajwr-11-4-4
      Issue No: Vol. 11, No. 4 (2023)
       
  • Piezometric and Hydrochemical Dynamics of Alluvial Aquifer in Timia
           Valley, Aïr Mountains, Semi-Arid Region (Agadez, Niger)

    • Authors: Illias Alhassane; Abdou Babaye Maman Sani, Issa Malan S.Souleymane
      Pages: 158 - 165
      Abstract: The alluvial aquifer of the Timia valley provide the supply of water to the population, but also the need for irrigation water. This important aquifer is highly dependent on precipitations and sometimes it dries out before the return of rainy season leading to drought. Also, the increase of agricultural activities has led to the deterioration of water quality in places but also to the depletion of this alluvial aquifer. The objective of this study is to contribute to understanding the quantitative and qualitative dynamics of this limited extension aquifer. A methodological approach based on piezometric and hydrochemical methods has revealed that the alluvial aquifer is renewed from the arrival of first floods of Timia valley and the main flow directions that are globally NE-SW. It show too an increase concentration of cations Ca2+, Mg2+, Na+ and stability of K+ during the rainy season. However, for anions a low increase of HCO3-, Cl-, SO42- and NO3- during the dry season is observed.
      PubDate: 2023-10-29
      DOI: 10.12691/ajwr-11-4-5
      Issue No: Vol. 11, No. 4 (2023)
       
 
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