The document summarizes the Volta Basin Development Challenge (VBDC) project, specifically the V3 component focused on integrated management of small reservoirs. It discusses that V3 aims to develop sustainable management options for small reservoirs to improve productivity while ensuring resilience. V3 studies water uses and users, assesses needs and impacts, and seeks to reach multiple objectives like perpetuating infrastructure and improving water quality through integrated management approaches. The project is making progress through field activities, capacity building, and developing a common understanding of small reservoir functioning with local stakeholders.

1. CPWF2‐V3:
where we come from
and where we are.
Ph. Cecchi (IRD G-eau)
on behalf of the V3 Team
(logos to be added)
“Presented at the VBDC 2012 Science reflection workshop”

2. From CPWF1 to CPWF2
‘ More crop per drop ’
Multi‐disciplinary projects:
to reduce poverty & to enhance crop production
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3. From CPWF1 to CPWF2
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4. From CPWF1 to CPWF2
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5. From CPWF1 to CPWF2
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6. TOWARDS BDC
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7. VOLTA BDC
Previous consultations
• CPWF1: Small Reservoirs Project (PN 46) + BFP Volta
• CPWF2: Stakeholders consultation (nov. 09)
• GoGeBa (IDRC)
• GLOWA
• Gates Initiative‐IWMI
• …
• Stakeholders perceptions & implication at different levels
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8. CPWF2: Volta
Stakeholders meeting (nov. 09)
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9. VOLTA BDC
Stakeholders meeting (nov. 09)
• Emergence of a consensual definition of the VBDC:
“Integrated Management of Rainwater and Small Reservoirs
for Multiple Uses”
• Architecture of the Volta Initiative
V1 – Targeting and scaling out
V2 – Integrated management of rainwater for crop‐livestock agroecosystems
V3 – Integrated management of small reservoirs for multiple uses
V4 – Sub‐basin management and governance of rainwater and small reservoirs
V5 – Coordination and learning for adaptive management and change
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10. CPWF2: V3
Background
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11. CPWF2: V3
Background
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12. CPWF2: V3
The context
small reservoirs (small, numerous, scattered, network…)
multiple users for multiple uses (diversity, co‐occurrence,…)
quantities and qualities of water (requirements, impacts,…)
conflicts (management, governance,…)
The expectations
The V3 project will develop sustainable options of management of small
reservoirs to improve the productivity AND to insure the resilience.
It will identify uses and users, assess their needs, clarify social and ecological
determinants, control health consequences.
For individual small reservoirs considered within their biophysical contexts
and their economical dynamics.
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13. CPWF2: V3
Uses require water (quantity and quality)
Uses impact the resource (quantity and quality)
There exist trade‐off between impacts and requirements
That determine the nature of available resources
Requirements
Key words
Integrated managements
Water Resources Uses and Users
Processes studies
Local scale
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Impacts

14. CPWF2: V3
Integrated management aim at several objectives:
– Perpetuating infrastructures
– Protecting / improving water quality for various uses
– Reaching / enhancing water productivity potentials
– Seeking for equity
Objectives that need
Knowledge on processes at the adequate scales
– (e.g.) Catchment for local physical processes
– (e.g.) Ecosystems connectivity for local ecological processes
– (e.g.) Market opportunities for local economic processes
– …
Andes • Ganges • Limpopo • Mekong • Nile • Volta

15. CPWF2: V3
Integrated management aim at several objectives:
– Perpetuating infrastructures
– Protecting / improving water quality for various uses
– Reaching / enhancing water productivity potentials
– Seeking for equity
Objectives that need
Knowledge on processes in their dynamics
– (e.g.) monitoring and field analyses
– (e.g.) experimental approaches
– (e.g.) simulation games
– …
Andes • Ganges • Limpopo • Mekong • Nile • Volta

16. CPWF2: V3
Integrated management aim at several objectives:
– Perpetuating infrastructures
– Protecting / improving water quality for various uses
– Reaching / enhancing water productivity potentials
– Seeking for equity
Objectives that need
Knowledge on processes in their contexts
– (e.g.) diachronic analyses (temporal evolution)
– (e.g.) synchronic analyses (spatial diversity)
– (e.g.) prospective analyses
– …
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17. CPWF2: V3
Integrated management aim at several objectives:
– Perpetuating infrastructures
– Protecting / improving water quality for various uses
– Reaching / enhancing water productivity potentials
– Seeking for equity
Objectives to be compared and discussed with
Stakeholder’s perceptions and expectations
Participative diagnostic and modeling
Pilot operations
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18. CPWF2: V3
< 2011
4 clusters
of SR’s
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19. CPWF2: V3
> 2011
2 core sites
«V3‐labs »
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20. CPWF2: V3
Principle
TIME
Resources Assessment
Impacts
Ecohealth
e.g. surface and
e.g. pollutions’ transfers
ground water fluxes
e.g. aquatic food webs
IWRM
Hydrology Assessment Uses and Users
Assessment Modeling Identification
Modeling Quantification
Requirement
Pilots
Control
Resources
Ecohealth
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21. CPWF2: V3
Partnership
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22. CPWF2: V3
Progress
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23. CPWF2: V3
Progress
Inception Workshop: Dec 2010
Contracting process: March‐April 2011
Core sites selection: Jan‐April 2011
Sensitization meetings: June 2011
Inception of field activities: June 2011
Feed‐Back meetings: April 2012
Capacity building: 4 PhD’s, 2 Master students
Communication: > 10 com. products
Web site: cpwf‐V3.org
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24. CPWF2: V3
Progress
“LOCAL COMMUNITIES: Are integrating new knowledge and skills acquired
from the project into their production systems at the community and farm level.”
Declared increasing awareness (e.g. biophysical interactions between uses)
“DISTRICT LEVEL”: Government officials from the Ministries of Agriculture, water
resources, fisheries and livestock, and LOCAL ADMINISTRATIVE AUTHORITIES,
are using research results and recommendations on improved management options
for multiple uses of small reservoirs.”
Declared growing commitment (e.g. concertation platform).
“ RESEARCHERS: have capacity in implementing integrated & transdisciplinary
research and modeling for small reservoirs' uses by local communities.”
Progressive common vision of small reservoir’s functioning
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25. CPWF2: V3
Outline (forthcoming presentations)
Selection of significant insights (generic & site specific)
Update of our main activities
‐ Assessment the current situations
‐ Towards modeling and co‐constructed scenarii
First batch
1/ Diagnoses, typologies and ZonAgri software (Inera, Sari, Geau)
2/ Hydrological modeling and IWRM (2iE, TU Delft & Knust)
Second batch
3/ Economic and sanitary externalities (Universities, Geau)
4/ Ecological externalities (Universities, Geau)
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26. CPWF2: the V3 loop
Requirements
Water Resources Uses and Users
Impacts
Merci de votre attention…
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