1. JOINT MANAGEMENT OF SHARED RESOURCES: NORTH WEST SAHARA AQUIFER SYSTEM
PRESENTATION DU BASSIN
JOINT MANAGEMENT
OF SHARED RESOURCES:
NORTH WEST
SAHARA AQUIFER SYSTEM
Djamel Latrech OSS

2. NORTH WEST SAHARA AQUIFER SYSTEM Algeria, Libya and Tunisia
PRESENTATION OF THE BASIN
NORTH WEST SAHARA AQUIFER SYSTEM
Algeria, Libya and Tunisia
Partners: Observatoire du Sahara et du Sahel (OSS), GEF, UNEP, SDC-Switzerland,
FFEM-France

3. NWSAS LIMITES

4. WEST – EAST SECTION

5. LOW RECHARGE (1 Billion of m3/year)
MOBILISATION CONDITIONS
LOW RECHARGE (1 Billion of m3/year)
WATER QUALITY PROTECTION (esp. salinisation)
PUMPING DEPTH LIMIT(100m)
PROTECTION OF OASES
SOIL AVAILABILITY AND QUALITY
LOW EXPLOITABLE VOLUMES Billion m3/y
SIGNIFICANT RESERVES - 60 Trillion m3

6. PAST DEVELOPMENT AND FUTURE NEED FOR EXPLOITATION

7. WATER POINTS EVOLUTION :1960

8. WATER POINTS EVOLUTION : 1970

9. WATER POINTS EVOLUTION : 1980

10. WATER POINTS EVOLUTION : 1990

11. WATER POINTS EVOLUTION : 2000

12. Total Abstraction in the NWSAS Abstraction > Recharge
ABSTRACTION EVOLUTION
0,3
0,6
0,9
1,2
1,5
1,8
2,1
2,4
2,7
1950
1955
1960
1965
1970
1975
1980
1985
1990
1995
2000
Total Abstraction in the NWSAS
Billion m3/year
LIBYE
TUNISIE
ALGERIE
Abstraction > Recharge

13. APPROACH OF THE NWSAS PROJECT

14. COOPERATION AND TECHNICAL EXCHANGE PERMANENT CONSULTATION MECHANISM
SUSTAINABLE MANAGEMENT
NEED FOR NWSAS BASIN MANAGEMENT
KNOWLEDGE/INFORMATION CONTROL
COOPERATION AND TECHNICAL EXCHANGE
PERMANENT CONSULTATION MECHANISM
BASIN AWARENESS

15. IDENTIFIED PROBLEMS AND
RISK AREAS BY PHASE I
STUDIES

16. ABSTRACTION CONSEQUENCE
- Water and soil salinisation 
- Disapearance of artesian wells  
- Excessive pumping height  
- Depletion (Outlet and Foggaras) 
- Increased Interference between and among countries  

17. Chotts Syrte Jufrah Oued Mya
NWSAS Map of RISKS
Chotts
Exutoire Tunisien
Syrte
Bassin Artésien
Jufrah
Oued Mya
Bassin Occidental

18. BILATERAL COMMISSIONS AVAILABLE FOR DECISION MAKERS
PROJECT RESULTS- PHASE I :
PREVIOUS SITUATION
BILATERAL COMMISSIONS
DECISION MAKERS’ WILL FOR COOPERATION
LACK OF TECHNICAL DATA TO SUPPORT
FURTHER COOPERATION
PRESENT SITUATION
TECHNICAL DATA
CONSULTATION TOOLS
AVAILABLE FOR DECISION MAKERS
e.g. risk analysis

19. OBJECTIVES AND PRELIMINARY RESULTS OF THE UNEP/GEF-SDC-FFEM PROJECT
PHASE II :
OBJECTIVES AND PRELIMINARY RESULTS OF THE UNEP/GEF-SDC-FFEM PROJECT

20. TO SHIFT FROM TECHNICAL LEVELTO POLICY LEVEL
GEF/UNEP/SDC/FFEM OBJECTIVES :
TO CONSOLIDATE HYDRAULIC STUDY RESULTS WITH THE INTEGRATION OF THE SOCIO ECONOMIC AND ENVIRONMENTAL INFORMATION/DATA
TO PROPOSE OPTIONS FOR A STRATEGY FOR SUSTAINABLE DEVELOPMENT, INVOLVE RELEVANT SECTORS, inter alia, Agriculture, Environment, ＡｌｌSTAKEHOLDERS and NGOS
TO SHIFT FROM TECHNICAL LEVELTO POLICY LEVEL

21. Very high water consumption : 6 000 to 25 000 m3/ha/year
SOCIO ECONOMY
Very high water consumption : to m3/ha/year
Low performance of irrigation techniques with water loss
Excessive fragmentation of irrigated land
Lack of maintenance of drainage
Soils Not fertilised
Main actors are family members
Women managing the irrigated land are limited (less than 5%).

22. Possible problems of future water abstraction: - Increased water cost
SOCIO ECONOMY
Possible problems of future water abstraction:
- Increased water cost
- Conflicts over allocation and fixing of ｗａｔｅｒ price
- Reduction in irrigation amount
- Soil salinisation (need for wash-out and drainage)  
Possible problems asscoaited with reduced agriculture productivity:
- Reduction of income of farmers
- Increased poverty of farmers 
- Increased unemployment

23. Importance of wetland and their fragility Serious soil salinisation
RECOMMENDATIONS ON ENVIRONMENTAL ISSUES
Importance of wetland and their fragility
Serious soil salinisation
Future need for restriction of agricultural development due to soil loss and degradation
Need for a joint survey

24. Institutionalising water saving policy: Rational resource management
POLICY RECOMMENDATIONS
Institutionalising water saving policy:
Rational resource management
Promotion of water-saving irrigation techniques
Utilisation of non conventional waters
Diversification of regional economy
Adoption of policy of pricing and investment support

25. CONSULTATION MECHANISM

26. APPROACH FOR THE CONSULTATION MECHANISM
Initial development (Rome, December 2002):
development of monitoring indicators,
development of database and models,
promotion of studies, research and training
Perspective for future evolution of the Mechanism
Cooperation among technicians and building of mutual confidence
Strategy for an integrated vision for sustainable management
Solidarity facing the risks
Involvement of decision makers

27. TERMS OF REFERENCES WITH LEGAL FRONT
CONSULTATION MECHANISM
PERMANENT STRUCTURE
Formalized agreements or conventions on protection of the risk areas
Exchange protocoles and data management
Common networks of monitoring and financing modalities on national budgets
Periodical updating of the management models
Production of monitoring indicators of the NWSAS (Hydraulic, Agriculture, Economy, Environment)
Annual meeting of the decision makers
TERMS OF REFERENCES WITH LEGAL FRONT

28. Stakeholder involvement
CONSULTATION MECHANISM
ACQUISITION
Common Inf.System
Significant data
Knowledge Updating
Identified Risks
Monitoring networks
Stakeholder involvement
AGREEMENTS
STRUCTURE
Formalisation
of consensus on
Data updating
Financing
Exchange protocole
Type of structure
Status
Attributions
Consultation Mechanism
NWSAS Sustainable management

29. DRAFT PROPOSAL SCIENTIFIC COMMITTEE PERMANENT SECRETARIAT
STEERING COMMITTEE
NATIONAL COMMITTEES

30. ＤＲＡＦＴPROPOSAL PROPOSED ACTIVITIES 1 Annual report on NWSAS state 2
Updating of common database 3
Training session 4
Reinforcing of common survey networks 5
Authority forums on water management: agriculture, environment,
Regional development 6
Organisation of tripartite consultation meetings 7
Model expolitation 8
Development of indicators on the resource availability and use 9
Dissemination of resource monitoring indicators 10
Information and awareness
PROPOSED ACTIVITIES 10