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Volume 9 Chemical Sciences Journal Asia Chemistry 2018
September 12-13, 2018
11th Annual Congress on
September 12-13, 2018 Singapore Chemistry
Contribution of Chemical and Isotopic tracers for water resources management and climate in Semi-
arid area? Cases from Morocco
Lhoussaine Bouchaou
Ibn Zohr University, Morocco
The semi-arid regions experience highly variable rainfall and recurrent droughts. The limited water resources are threatened
by increasing demands and accelerated quality degradation. Consequently, projections for future renewable water resources in
these regions are bleak and climate change coupled with increasing water overexploitation are likely to exaggerate the water
crisis within. The main issues are to understand if the water resources are renewable- how and where? And sustainability impact
of climate change. Based on the scientific research for understanding the origin of water and contamination mechanisms, the
decision makers aim to develop adequate management plans upon different issues and future predictions. In this talk we present
some results about the contribution of a combined Geochemical and isotopic investigation using several chemical and isotopic
tracers in order to determine the sources of water recharge to the aquifer, the origin of salinity and the residence time of water
in some aquifers in different contexts. The multiple isotopes analysis and chemical tracing of groundwater identify the sources
of salinity in groundwater (seawater intrusion, evaporates, fertilizers, wastewater). These techniques are successful in semi-arid
regions where a systematic monitoring seems sometimes difficult. The data generated in this study will certainly encourage the
revision and improvement of the current hydrological water resources model. In contrast, we argued that the intensively exploited
aquifers are more vulnerable given the relatively longer residence time of the water and mineralization processes. The results
provide a framework for development of a comprehensive management plan and climate change impacts.
Chem Sci J 2018, Volume 9
DOI: 10.4172/2150-3494-C5-030