1
PRESENTATION DU BASSIN
Djamel Latrech OSS
JOINT MANAGEMENT
OF SHARED RESOURCES:
NORTH WEST
SAHARA AQUIFER SYSTEM
2
PRESENTATION OF THE BASIN
NORTH WEST SAHARA AQUIFER
SYSTEM
Algeria, Libya and Tunisia
Partners: Observatoire du Sahara e...
3
NWSAS LIMITES
4
WEST – EAST SECTION
5
• LOW RECHARGE (1 Billion of m3/year)
• WATER QUALITY PROTECTION (esp.
salinisation)
• PUMPING DEPTH LIMIT(100m)
• PROTE...
6
PAST DEVELOPMENT AND
FUTURE NEED FOR
EXPLOITATION
7
WATER POINTS EVOLUTION :1960
8
1970
WATER POINTS EVOLUTION : 1970
9
1980
WATER POINTS EVOLUTION : 1980
10
1990
WATER POINTS EVOLUTION : 1990
11
2000
WATER POINTS EVOLUTION :
2000
12
0
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 N...
13
APPROACH OF THE
NWSAS PROJECT
14
SUSTAINABLE MANAGEMENT
NEED FOR NWSAS BASIN
MANAGEMENT
KNOWLEDGE/INFORMATION CONTROL
BASIN AWARENESS
COOPERATION AND TE...
15
IDENTIFIED PROBLEMS AND
RISK AREAS BY PHASE I
STUDIES
16
ABSTRACTION CONSEQUENCE
- Water- Water and soiland soil salinisation salinisation 
-- DDisapearanceisapearance of artes...
17
NWSAS Map of RISKS
Jufrah
Bassin
Occidental
Oued
Mya
Bassin
Artésien
Syrte
Exutoire
Tunisien
Chott
s
18
• BILATERAL COMMISSIONS
PRESENT SITUATION
PREVIOUS SITUATION
• TECHNICAL DATA
• CONSULTATION TOOLS
AVAILABLE FOR DECISI...
19
OBJECTIVES AND
PRELIMINARY RESULTS
OF THE UNEP/GEF-SDC-
FFEM PROJECT
PHASE II : 2003 - 2005
20
GEF/UNEP/SDC/FFEM OBJECTIVES : 2003 - 2005
 TO CONSOLIDATE HYDRAULIC STUDY RESULTS
WITH THE
INTEGRATION OF THE SOCIO E...
21
• Very high water consumption : 6 000 to 25
000 m3/ha/year
• Low performance of irrigation techniques
with water loss
•...
22
• Possible problems of future water
abstraction:
- Increased water cost
- Conflicts over allocation and fixing of water...
23
Importance of wetland and their
fragility
Serious soil salinisation
Future need for restriction of
agricultural deve...
24
• Institutionalising water saving policy:
– Rational resource management
– Promotion of water-saving irrigation techniq...
25
CONSULTATION MECHANISM
26
APPROACH FOR THE CONSULTATION
MECHANISM
Initial development (Rome, December 2002):
development of monitoring indicators...
27
PERMANENT STRUCTURE
 Formalized agreements or conventions on protection
of the risk areas
 Exchange protocoles and da...
28
Common Inf.System
Significant data
Knowledge Updating
Identified Risks
Monitoring networks
Stakeholder involvement
Type...
29
SCIENTIFIC
COMMITTEE
PERMANENT
SECRETARIAT
STEERING COMMITTEE
NATIONAL COMMITTEES
DRAFT PROPOSAL
30
DRAFT PROPOSAL
1 Annual report on NWSAS state
2 Updating of common database
3 Training session
4 Reinforcing of common ...
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Joint Management of Shared Resources: North West Sahara Aquifer System

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Objective: To consolidate Hydraulic study results with the integration of the Socio-Economic and Environmental information/data. To propose options for a strategy for sustinable development,involve relevant sectors, inter alia, agriculture, enviornment, all stakeholders and NGO's to shift from technical level to policy level.

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Joint Management of Shared Resources: North West Sahara Aquifer System

  1. 1. 1 PRESENTATION DU BASSIN Djamel Latrech OSS JOINT MANAGEMENT OF SHARED RESOURCES: NORTH WEST SAHARA AQUIFER SYSTEM
  2. 2. 2 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. 3. 3 NWSAS LIMITES
  4. 4. 4 WEST – EAST SECTION
  5. 5. 5 • 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 - 2.5 Billion m3 /y SIGNIFICANT RESERVES - 60 Trillion m3 MOBILISATION CONDITIONS
  6. 6. 6 PAST DEVELOPMENT AND FUTURE NEED FOR EXPLOITATION
  7. 7. 7 WATER POINTS EVOLUTION :1960
  8. 8. 8 1970 WATER POINTS EVOLUTION : 1970
  9. 9. 9 1980 WATER POINTS EVOLUTION : 1980
  10. 10. 10 1990 WATER POINTS EVOLUTION : 1990
  11. 11. 11 2000 WATER POINTS EVOLUTION : 2000
  12. 12. 12 0 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 ABSTRACTION EVOLUTION
  13. 13. 13 APPROACH OF THE NWSAS PROJECT
  14. 14. 14 SUSTAINABLE MANAGEMENT NEED FOR NWSAS BASIN MANAGEMENT KNOWLEDGE/INFORMATION CONTROL BASIN AWARENESS COOPERATION AND TECHNICAL EXCHANGE PERMANENT CONSULTATION MECHANISM
  15. 15. 15 IDENTIFIED PROBLEMS AND RISK AREAS BY PHASE I STUDIES
  16. 16. 16 ABSTRACTION CONSEQUENCE - Water- Water and soiland soil salinisation salinisation  -- DDisapearanceisapearance of artesian wellsof artesian wells    - Excessive pumping height  - Excessive pumping height   - Depletion (Outlet and Foggaras) - Depletion (Outlet and Foggaras)  -- IncreasedIncreased InterferenceInterference between andbetween and among countries  among countries  
  17. 17. 17 NWSAS Map of RISKS Jufrah Bassin Occidental Oued Mya Bassin Artésien Syrte Exutoire Tunisien Chott s
  18. 18. 18 • BILATERAL COMMISSIONS PRESENT SITUATION PREVIOUS SITUATION • TECHNICAL DATA • CONSULTATION TOOLS AVAILABLE FOR DECISION MAKERS e.g. risk analysis PROJECT RESULTS- PHASE I : 1999 -2002 • DECISION MAKERS’ WILL FOR COOPERATION • LACK OF TECHNICAL DATA TO SUPPORT FURTHER COOPERATION
  19. 19. 19 OBJECTIVES AND PRELIMINARY RESULTS OF THE UNEP/GEF-SDC- FFEM PROJECT PHASE II : 2003 - 2005
  20. 20. 20 GEF/UNEP/SDC/FFEM OBJECTIVES : 2003 - 2005  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, Al l STAKEHOLDERS and NGOS  TO SHIFT FROM TECHNICAL LEVELTO POLICY LEVEL
  21. 21. 21 • Very high water consumption : 6 000 to 25 000 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%). SOCIO ECONOMY
  22. 22. 22 • 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 SOCIO ECONOMY
  23. 23. 23 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 RECOMMENDATIONS ON ENVIRONMENTAL ISSUES
  24. 24. 24 • 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 POLICY RECOMMENDATIONS
  25. 25. 25 CONSULTATION MECHANISM
  26. 26. 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 CONSULTATION MECHANISM
  27. 27. 27 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 CONSULTATION MECHANISM
  28. 28. 28 Common Inf.System Significant data Knowledge Updating Identified Risks Monitoring networks Stakeholder involvement Type of structure Status Attributions Formalisation of consensus on Data updating Financing Exchange protocole NWSAS Sustainable management STRUCTURE AGREEMENTS ACQUISITION CONSULTATION MECHANISM
  29. 29. 29 SCIENTIFIC COMMITTEE PERMANENT SECRETARIAT STEERING COMMITTEE NATIONAL COMMITTEES DRAFT PROPOSAL
  30. 30. 30 DRAFT PROPOSAL 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

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