NDLI: Hydrochemical and isotopic characterisation of Eastern Haouz plain groundwater, Morocco

Content Provider	Springer Nature Link
Author	Rochdane, S. Reddy, D. V. El Mandour, A.
Copyright Year	2014
Abstract	The groundwater of Eastern Haouz of Morocco is an important source for the high-density population and intensive agricultural activity in the area. The water demand here is increasing year by year. Groundwater levels measured in the study area show that the water table is quite deep (40–50 m) and that the groundwater flow is closely following the surface topography. Major ion chemistry was made on 40 groundwater samples, and about 20 samples among them were used for stable isotope measurements. A large variation is found between the minimum and the maximum values of different ions. The dominant cation Na$^{+}$ concentration varied between 18 and 1,159 mg/L and the anion Cl$^{−}$ varied between 53 and 2,176 mg/L. Samples from Schist and Triassic sediments are relatively more mineralised, thus unsuitable for drinking as well as agricultural purposes. Groundwater within the plains (alluvium) is relatively less mineralised than the other older formations. However, hydrochemical values of many samples collected from alluvium are also not in the potable range owing to the natural and the anthropogenic contamination. Hence, hydrochemical data of the study area show geological control on water quality. Apart from salinity, about 25 % of the samples have higher nitrate content than the drinking water permissible limit. Stable isotope measurements show that groundwater recharge to the phreatic aquifer is controlled by local conditions.
Starting Page	3487
Ending Page	3500
Page Count	14
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	73
Issue Number	7
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-28
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Eastern Haouz Tassaout Salinisation Hydrochemistry Stable isotopes Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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