Présentations Colloques

Oral Presentation
6.01
Session 6.01: Managed Aquifer Recharge
Klinger Jochen
Integrating Managed Aquifer Recharge into regional water management in Jordan
The water resource availability in Jordan is on a very low level, and the population is facing absolute water scarcity according to the UN. To cope with this challenge, Managed Aquifer Recharge (MAR) was declared as a key technology in the Jordan Water Strategy. In this respect, an implementation concept for an MAR scheme was developed for a test site in the Jordan Valley, a neuralgic point in the Jordanian Water Management. The concept focuses on temporal storage of freshwater in an alluvial aquifer. The freshwater derives from King Abdallah Canal (KAC), the central water conveyor in Jordan, and will be recharged in winter time and recovered during the dry season.**The hydrogeological suitability for MAR was evaluated by geo-electrical investigations and exploratory drillings. An alluvial fan was mapped close to the village of Deir Alla, consisting of sand and gravel, which is incised into fine laminated Lisan marls depicting a discrete underground store. The alluvial sediments show an effective porosity of 15 % allowing the storage of 5 million cubic meter freshwater. Results of field and laboratory experiments were used to set up a numerical groundwater model (FEFLOW) to define the optimal recharge methods adapted to the local boundary conditions. The economic and environmental assessment is done using the “benefit transfer” and “damage-avoided” methods. The damages provoked to the environment and benefits due to MAR application are expressed in monetary values. The results will be discussed by the Jordanian decision makers at the Ministry of Water and Irrigation (MWI) to get a step closer to implementation. **
Germany