heal.abstract |
Groundwater management is a key issue, especially in the island regions of Greece, which are characterized by a relatively dry climate. At the same time, the development of activities is leading to an increase in urban construction, which, in combination with the tourism sector, is creating more and more demands for meeting water needs. In the context of this thesis, the coastal underground aquifer system of the Livadi plain of Naxos is studied, where there are many activities, mainly agriculture and therefore the demand based on the quantities pumped becomes high, resulting in quantitative and qualitative degradation of the aquifer.
The first chapter is an introduction, where basic concepts related to groundwater movement, the phenomenon of seawater intrusion and the main equations describing the relevant mechanisms are described. At the same time, hydrogeological models developed for the simulation of groundwater flow and mass transfer are approached, with a greater emphasis on those exploited for the present work.
In the second chapter, the research area is identified. That is, the geographic location, population distribution, and geomorphology are analyzed. Also, the land use as well as water uses of the study area are described.
In the third chapter, the geology, hydrology and hydrogeology of the study area are analysed and the water balance is estimated. Furthermore, some key conclusions are drawn from the analysis of key measured quality parameters.
In the fourth and fifth chapters, the simulation results are presented, including the distribution of the hydraulic load and the mass transfer (contaminant) in the groundwater aquifer. In addition, two management scenarios are formulated and the related results are presented.
Finally, chapter six contains the conclusions of this thesis. |
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