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Author |
Greene, R.; Timms, W.; Rengasamy, P.; Arshad, M.; Cresswell, R. |
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Title |
Soil and Aquifer Salinization: Toward an Integrated Approach for Salinity Management of Groundwater |
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Book Chapter |
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Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
2016 |
Publication |
Integrated Groundwater Management: Concepts, Approaches and Challenges |
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377-412 |
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Abstract |
Degradation of the quality of groundwater due to salinization processes is one of the key issues limiting the global dependence on groundwater in aquifers. As the salinization of shallow aquifers is closely related to root-zone salinization, the two must be considered together. This chapter initially describes the physical and chemical processes causing salinization of the root-zone and shallow aquifers, highlighting the dynamics of these processes and how they can be influenced by irrigation and drainage practices, thus illustrating the connectivity between soil and groundwater salinization. The processes leading to aquifer salinization in both inland and coastal areas are discussed. The roles of extractive resource industries, such as mining and coal bed methane operations, in causing aquifer salinization are also outlined. Hydrogeochemical changes occurring during salinization of aquifers are examined with the aid of Piper and Mixing Diagrams. The chapter then illustrates the extent of the problem of groundwater salinization as influenced by management and policy using two case studies. The first is representative of a developing country and explores management of salt-affected soils in the Indus Valley, Pakistan, while the second looks at a developed country, and illustrates how through monitoring we can deduce causes of shallow aquifer salinity in the Namoi Catchment of NSW, Australia. Finally, there is a section on integration and conclusions where we illustrate how management to mitigate salinization needs to be integrated with policy to diminish the threat to productivity that occurs with groundwater degradation. |
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Springer International Publishing |
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Cham |
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Jakeman, A.J.; Barreteau, O.; Hunt, R.J.; Rinaudo, J.-D.; Ross, A. |
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978-3-319-23576-9 |
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THL @ luqianxue.zhang @ Greene2016 |
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49 |
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Author |
Siarkos, I.; Latinopoulos, P. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Modeling seawater intrusion in overexploited aquifers in the absence of sufficient data: application to the aquifer of Nea Moudania, northern Greece |
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Journal Article |
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2016 |
Publication |
Hydrogeology Journal |
Abbreviated Journal |
Hydrogeology J. |
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24 |
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2123–2141 |
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Keywords |
Groundwater flow, Seawater intrusion, Numerical modeling, Greece, Sensitivity analysis |
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Abstract |
In many coastal areas, overexploitation of groundwater resources has led both to the quantitative degradation of local aquifers and the deterioration of groundwater quality due to seawater intrusion. To investigate the behavior of coastal aquifers under these conditions, numerical modeling is usually implemented; however, the proper implementation of numerical models requires a large amount of data, which are often not available due to the time-consuming and costly process of obtaining them. In the present study, the investigation of the behavior of coastal aquifers under the lack of adequate data is
attempted by developing a methodological framework consisting of a series of numerical simulations: a steady-state, a false-transient and a transient simulation. The sequence and the connection between these simulations constitute the backbone of the whole procedure aimed at adjusting the various
model parameters, as well as obtaining the initial conditions for the transient simulation. The validity of the proposed methodology is tested through evaluation of the model calibration procedure and the estimation of the simulation errors (mean error, mean absolute error, root mean square error, mean relative error) using the case of Nea Moudania basin, northern Greece. Furthermore, a sensitivity analysis is performed in order to minimize the error estimates and thus to maximize the reliability of the models. The results of the whole procedure affirm the proper implementation of the developed methodology under specific conditions and assumptions due to the lack of sufficient data, while they give a clear picture of the aquifer’s quantitative and qualitative status. |
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Ilias Siarkos: isiarkos@civil.auth.gr; Pericles Latinopoulos latin@civil.auth.gr |
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School of Civil Engineering, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece |
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IAH |
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Springer |
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English |
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1431-2174 |
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Hydrogeology; groundwater modelling, sea water intrusion |
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yes |
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MGRE @ redha.menani @ |
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52 |
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Author |
Seyedmohammadi*, J.; Esmaeelnejad, L.; Shabanpour, M. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Spatial variation modeling of groundwater electrical conductivity using geostatistics and GIS |
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Journal Article |
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2016 |
Publication |
Model. Earth Syst. Environ. |
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2 |
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169 |
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CUT @ phaedon.kyriakidis @ Seyedmohammadi2016 |
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164 |
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Author |
Petelet-Giraud, E.; Négrel, P.; Aunay, B.; Ladouche, B.; Bailly-Comte, V.; Guerrot, C.; Flehoc, C.; Pezard, P.; Lofi, J.; Dörfliger, N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Coastal groundwater salinization: Focus on the vertical variability in a multi-layered aquifer through a multi-isotope fingerprinting (Roussillon Basin, France) |
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Journal Article |
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Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
2016 |
Publication |
Science of The Total Environment |
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566-567 |
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398-415 |
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Keywords |
Groundwater salinization, Coastal aquifer, Roussillon Basin, Isotopes, Westbay System, Barcarès and Canet sites |
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Abstract |
The Roussillon sedimentary Basin (South France) is a complex multi-layered aquifer, close to the Mediterranean Sea facing seasonally increases of water abstraction and salinization issues. We report geochemical and isotopic vertical variability in this aquifer using groundwater sampled with a Westbay System® at two coastal monitoring sites: Barcarès and Canet. The Westbay sampling allows pointing out and explaining the variation of water quality along vertical profiles, both in productive layers and in the less permeable ones where most of the chemical processes are susceptible to take place. The aquifer layers are not equally impacted by salinization, with electrical conductivity ranging from 460 to 43,000μS·cm−1. The δ2H–δ18O signatures show mixing between seawater and freshwater components with long water residence time as evidenced by the lack of contribution from modern water using 3H, 14C and CFCs/SF6. S(SO4) isotopes also evidence seawater contribution but some signatures can be related to oxidation of pyrite and/or organically bounded S. In the upper layers 87Sr/86Sr ratios are close to that of seawater and then increase with depth, reflecting water–rock interaction with argillaceous formations while punctual low values reflect interaction with carbonate. Boron isotopes highlight secondary processes such as adsorption/desorption onto clays in addition to mixings. At the Barcarès site (120m deep), the high salinity in some layers appear to be related neither to present day seawater intrusion, nor to Salses-Leucate lagoonwater intrusion. Groundwater chemical composition thus highlights binary mixing between fresh groundwater and inherited salty water together with cation exchange processes, water–rock interactions and, locally, sedimentary organic matter mineralisation probably enhanced by pyrite oxidation. Finally, combining the results of this study and those of Caballero and Ladouche (2015), we discuss the possible future evolution of this aquifer system under global change, as well as the potential management strategies needed to preserve quantitatively and qualitatively this water resource. |
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0048-9697 |
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Call Number |
THL @ christoph.kuells @ Peteletgiraud2016398 |
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181 |
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Author |
Satrio, S., Prasetio, R., Hadian, M., Syafri, I. |
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Title |
Stable Isotopes and Hydrochemistry Approach for Determining the Salinization Pattern of Shallow Groundwater in Alluvium Deposit Semarang, Central Java |
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2016 |
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Indonesian Journal on Geoscience |
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4 |
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THL @ christoph.kuells @ |
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195 |
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