management of rainwater and small reservoir for multiple uses in the volta river basin

Volta Basin Development ChallengeManagement of Rainwater and Small

Reservoir for multiple uses 2012 Annual Reflection Meeting

Adama Traoré

Diagnoses, typology of uses and usersBoura-BURKINA FASO

Andes • Ganges • Limpopo • Mekong • Nile • Volta

Objectives

1. Diagnoses

2. Typology of uses and users

3. Pilot activities

4. Participatory modelling (G-eau)


MethodologyQUESTIONARY

Exploratory survey

LOCAL INSTITUTIONS

- Agriculture- livestock- Environment- Health- Local collectivity

Individual survey

Step 1

Step 2


Results…


Diagnoses4 users groups

1. Farmers (CORICAB, PIAME, 2 informal groups )

2. Livestock

3. Fishermen

4. Domestic users


Typology (users)Farmers (formal groups)

1. CORIKAB: since 1989, 300 farmers, 62 ha (0.2 & 0.5

ha/person) , downstream, rice & gardening vegetables ,

dry season, gravitionary system on 3 zones

2. PIAME: since 2007, 130 farmers, 40 ha (0.12 & 0.5

ha/farmer) right shore, gardening vegetables in dry season

(tomato, onion, eggplant, cabbage, …), motopump

irrigation, cereals in rain season. Dry season maize in 2012


Typology (users)Agriculture (informal groups)

1. Toum’Kiente: informal groups, left shore, 20 ha,

gardening vegetables in dry season, (tomato, onion)

2. Toum’Hositi: informal groups, left shore, 10 ha (0.12

ha/farmer), legumes in dry season (tomato, onion, …)


Typology (users)Livestock (extensive)

Sedentary livestock: 4 farmers groups, castles, sheep, goat.

Transhumant livestock: Castles mainly come from Burkina and

Ghana during dry season Fisher

One group (Akawari)

Gill net, cast net

Fish farming (fixed enclosure,

floating structures)

Hook fishing


Typology (users)Domestic use

Brick confection

Household (dishes, washing)

Others (bikes washing, …)


Some difficulties …CORIKAB (rice)

Water management for the 3 zones, rate of flow low in 3rd

zone (extreme downstream)

No communication/collaboration between zones

Damage on irrigation canal I and II (Flood…)

Low use of improved varieties + few knowledge of

production techniques => low yields, no efficient water use

Fertilizer supply


Some difficulties …PIAME (gardening vegetables)

Damage on irrigation installation

(important water flight)

Frequent motopump breakdown

Animals damage (no protection)


Some difficulties …Toum’Hositi and Toum’Kiente (gardening

vegetables)

No management (manual irrigation)

Animals damage (no protection)


Pilot activitiesRice production/ participatory

approach Objective:

To introduce news improve varieties,

To introduce news technical production

Methodology

6 varieties : 3 local (Konkoulamoui, zelemoui, Gongomoui), 3

improved varieties (FKR 56 N, FKR 60 N, FKR 62 N)

Production technologies (sowing, irrigation, fertilizer,


Typology (uses)CORIKAB and PIAME cases:

Cultural superficies, crops

Input: water, seeds, fertilizer, pesticides (herbicide,

insecticide), work (plowing, sowing, weeding, irrigation,

harvest and beating), production

Output: selling

Some data for CORIKAB / Classification and ZonAgri

No more informations on PIAME and both informal

groups

A ZonAgri Participatory Modelling of Agricultural Activities and Uses of

Water in Boura (BF) and Binaba (GH)

Lorraine RENAUDIN, JC Poussin


1/ Methodology2/ Modelling with ZonAgri but how does it work ? (Binaba)3/ What’s about Boura’s situation ?

Overview


Different steps …Individual

surveys

Characterization of plot types

Plot types validation with

users

ZonAgri modelling

ZonAgri model validation with

usersScenarii


METHODOLOGY


Individual survey (Prices, Labour time, inputs quantities, yield, water

quantity) 2 grades according to 3 (Rice) or 4 (gardening vegetable) criteria

Nursery duration Nitrogen Units Pest control Weeds control

Different types of plots (grades + Yield level + Plot location)


Modelling with ZonAgri But

How does it work ? (Binaba)


Each plot can be compared to a farming system in a given geographic region with :

Inputs a set of production Output activities A given size a certain sitePlot with a given strength in a certain sector


1/ Inputs data

Inputs Outputs


2/ Outputs data


3/ Production unit data Entering the different types of plot …

According to grades

According to the yield level

And the quantity of inputs for each type of plot


4/ Sites definition


5/ “ Plot” definition

For each type of plot, one cropping system


6/ Sector definition (Right bank and Left bank)

7/ Scenarii + Results


What’s about Boura situation ?


Already done …1/ Individual surveys

2/ Beginning of the plot types characterization : Corikab

3/ Plot location characterization (Zone 1, Zone 2, Zone 3, upland, lowland)

1,1,0 0,0,0 1,0,0 1,1,0 1,0,1 0,1,0 0,0,1 1,1,1 1,1,0 0,1,1 1,1,00

1000

2000

3000

4000

5000

6000

Yields for each type Yield (kg/ha)


Thank you for your attention !

management of rainwater and small reservoir for multiple uses in the volta river basin

Technology

users groups

farmers groups

rice gardening vegetables

type of plot

plot definitionfor

dry season tomato

motopump irrigation

water quantity