International Waters learning Exchange & Resource Network

Identification of the effects of human pressure on groundwater quality to support water management strategies in coastal regions: a multi-tracer hydrogeochemical approach in the region of Nador (Morocco)

Groundwater pollution from anthropogenic sources is a serious concern affecting several coastal aquifers in the Mediterranean Basin. In this region adequate science-based management strategies to protect groundwater from contamination and overexploitation are of paramount importance. In particular special attention has to be paid to coastal aquifers in arid and semi-arid regions, often representing the main freshwater resource to sustain human needs, as in the case of the Bou-Areg Aquifer (Nador Region, Morocco). A complete assessment of human impacts on groundwater quality determined that the BouAreg aquifer is characterized by a high natural salinity, increased by the effects of agricultural activities through irrigation return flows. The coupled multi-tracer and statistical analysis confirmed the strong dependency on irrigation activities and favoured the identification of the processes governing the aquifer’s hydrochemistry in the different seasons. This study represents a reproducible example of the application of hydrogeochemistry as a tool for groundwater management in rural coastal areas.

2600: Strategic Partnership for the Mediterranean Large Marine Ecosystem--Regional Component: Implementation of agreed actions for the protection of the environmental resources of the Mediterranean Sea and its coastal areas

24 Apr 2019

1.1 MB

English

Identification of the effects of human pressure on groundwater quality to support water management strategies in coastal regions: a multi-tracer hydrogeochemical approach in the region of Nador (Morocco).pdf