Integrated management of small reservoirs for multiple uses Volta Basin Development Challenge v3

A Partner of

The VBDC-V3 project

An introduction…

Andes • Ganges • Limpopo • Mekong • Nile • Volta

Content1. Context2. Objectives3. Results4. Perspectives5. Lessons 6. Recommendations

The VBDC-V3 project: context

Integrated Managementof

Small Reservoirs

forMultiple Uses


Context (1)

Water rights and water access at the catchment level

Water governance

Payment for environmental services

Broader water-related policy issues

Crop-aquaculture systems

CPWF1 + BFP: emerging themes

Rainwater harvesting and rainwater management

Crop-livestock systems and livestock water productivity

Multiple-use systems at the community level

Integrated land and water management

Small reservoirs and other small water infrastructure in dryland areas

Wastewater management for peri-urban food systems


Context (2)

through

(specific) Basin Development Challenges

and

- establishing basin-level programs

- promoting an integrated research, innovations and impact strategy

- creating Topic Working Groups to ensure knowledge sharing

Towards CPWF2: main outputs…

To demonstrate ways to alleviate poverty by increasing farmers income

To identify ways to enhance resilience to change driven by external forces

in


Basins areas

Andes selected basins

Indus-Ganges coastal areas

Limpoporainwater & Small

Reservoirs

Mekong large reservoirs

Nile rainwater

Voltarainwater & Small

Rerservoirs

CPWF 2 [2009 - 2013]

Increase productivity & reduce poverty

Basin Development Challenges

Increase productivity & reduce conflicts

Increase resilience

Increase productivity & reduce poverty

strenghen rural livelihoods

reduce poverty

Context (3)


• Project V1 – Targeting and scaling out

• Project V2 – Integrated management of rainwater for crop-livestock agroecosystems

• Project V3 – Integrated management of small reservoirs for multiple uses

• Project V4 – Sub-basin management and governance of rainwater and small reservoirs

• Project V5 – Coordination and learning for adaptive management and change (coordination and change project)

VBDCManagement of Rainwater and Small Reservoirs for Multiple Uses

Context (4)



The VBDC-V3 project: objectives


Small Reservoirs

forMultiple Uses


Building on past

experience

Objectives (1)


• 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 integrated management options to enhance

productivity & ensure equitable allocation of water resources.

– 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.

Objectives (2)


Uses require water (quantity and quality)Uses impact the resource (quantity and quality)There exist trade-off between impacts and requirementsThat determine the nature of available resources

Water Uses and Users

Requirements

Resources

Impacts

Key wordsIntegrated managements

Processes studiesLocal scale

Objectives (3)


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– …

Objectives (4)




Knowledge on processes in their dynamics– (e.g.) monitoring and field analyses– (e.g.) experimental approaches– (e.g.) simulation games– …

Objectives (5)




Knowledge on processes in their contexts– (e.g.) diachronic analyses (temporal evolution)– (e.g.) synchronic analyses (spatial diversity)– (e.g.) prospective analyses– …

Objectives (6)



Objectives to be compared and discussed with

Stakeholder’s perceptions and expectations Participative diagnostic and modeling Pilot operations

Objectives (7)


2 core sites«V3-labs »

BouraBurkina Faso Binaba

Ghana

Objectives (8)



The VBDC-V3 project: results


Small Reservoirs

forMultiple Uses


Results (1)

‘Debate about evaporative losses’TU Delft and Knust

BINABA1.4 < 9 < 1.2 mm/dayMin < Moy < MaxWet ----------- Dry


Results (2)

‘Modelling Water Balance in ungauged basins’2iE and partners

BOURA

Runoff 9.70 Mm3

Evapo 2.76 ‘’Seepage 1.16 ‘’Outflow 6.24 ‘’Uses 0.84 ‘’


‘Assessing performances of irrigated schemes’G-eau and partners

BOURA BINABA

Results (3)


‘Linking livelyhood and small reservoirs: economy’G-eau and partners

BOURA

Results (4-1)

133/488 householdsAttractive placePoly-activityBrake on emigrationEffective impact of SR?


‘Linking livelyhood and small reservoirs: economy’G-eau and partners

BOURA

Results (4-2)

Equipement indicatorsBetter situation in BouraEffective impact of SR?

+ 14%+ 34% - + 21%+ 10%+ 13%+ 6%+ 48%


‘Linking livelyhood and small reservoirs: health’G-eau and partners

Results (4-3)

Children < 5: 88/133 householdsBetter situation in BouraEffective impact of SR?

Boura (2013) Region (2010)acute 6.5 15.5moderate 23.7 34.9acute 2.0 3.5moderate 5.0 11.0

Malnutrition (%)

Size/age

Weight/age

- 9%- 11%- 1.5%- 6%


‘Agriculture Intensification and Aquatic ecology’G-eau and partners

Results (5)

Impactsand Trade-offs

BOURA


‘Pilot on seeds improvement’SARI and partners

Results (6)

RiceOnionsBINABA


‘Self-assessment of participatory processes’Cirad Green and partners

Results (7)

What is‘participation’?

BOURAand

BINABA


Results (8)

Water Uses and Users

Requirements

Resources

Impacts

Com.F. Annor

PosterT. Fowe

Com.JC. Poussin

PosterW. Dogbe

Com.JL. Fusillier

Com.P. Cecchi

Com.W. Daré



The VBDC-V3 project: perspectives


Small Reservoirs

forMultiple Uses


Teams + 4 PhD + N Master students:

PhD theses

Scientific papers

Communication

Boura Synthesis

Feed-backs to Stakeholders

Perspectives



The VBDC-V3 project: lessons


Small Reservoirs

forMultiple Uses


Lessons (1)

Interactions with other Vi projects- existing with V4 and V5- nearly zero with V1 and V2

Interactions within V3- no “team spirit” (not a crew but an assemblage of

interests)

- Boura as exception? (forthcoming synthesis)


Lessons (2)

V3 design- too complex (lack of integrative framework/model for

the aggregation of pluridisciplinary results collected)

- too ambitious (lack of time)

VA animation- not enough (absence of cross-fertilization)

- not adapted (proactivity in an adaptive management context)


Lessons (3)

Delivery of results- communication before validation

(ethics/impact)

CPWF pressure- understandable (from research: ‘Outcome Logic

Models’ …)

- but excessive (… toward extension: ‘Impact Pathways’)



The VBDC-V3 project: recommendations


Small Reservoirs

forMultiple Uses


‘‘The challenge lies not merely in reducing vulnerability [against Climate Change] but also in getting the structures in place so governments and investors can tackle adaptation in the most effective manner possible.

The good news is we can improve lives today while building the crucial infrastructure needed for tomorrow.’’

Recommendations (1)

Source: ‘‘Global Warming and Adaptability’’ Wall Street Journal, 12 Dec. 2011


CCI: Controlling the Consequences of agricultural Intensification

IPI: Improving the Performances of Irrigation

CWB: Closing the Water Balance (of Small Reservoirs)

RDCS: Replicating and Diversifying Case Studies

MDE: Modelling the Determinants of Externalities

Among others…

Recommendations (2)


1. To the populations who are hosting us.

2. To colleagues and Institutes involved in the adventure

3. To CPWF for the creation of the Volta initiative

4. To VBDC colleagues for the stimulating exchanges

5. To Funke for her permanent support and attention

Acknowledgements

Technology

Integrated management of small reservoirs for multiple uses Volta Basin Development Challenge v3