Sarclo-binage cloisonné [Niger]
- Creation:
- Update:
- Compiler: Unknown User
- Editor: –
- Reviewer: Deborah Niggli
technologies_1108 - Niger
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Expand all Collapse all1. General information
1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology
Key resource person(s)
SLM specialist:
Adamou Oudou Noufou
Niger
SLM specialist:
Benguerel Philipp
CDE, Université de Berne
Hallerstrasse 12 3012 Bern
Switzerland
SLM specialist:
Bielders Charles
c.bielders@cgiar.org
ICRISAT
BP 12404, Niamey, Niger
Niger
SLM specialist:
Tielkes Eric
leffnig@intnet.ne
DED
BP 11895, Niamey, Niger
Niger
1.3 Conditions regarding the use of data documented through WOCAT
When were the data compiled (in the field)?
27/07/1998
The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:
Yes
1.4 Declaration on sustainability of the described Technology
Is the Technology described here problematic with regard to land degradation, so that it cannot be declared a sustainable land management technology?
No
2. Description of the SLM Technology
2.1 Short description of the Technology
Definition of the Technology:
Technique traditionnelle améliorée pour l'entretien des cultures qui consiste à sarcler tout en construisant des billons cloisonnés pour détruire les adventices et contrôler le ruissellement.
2.2 Detailed description of the Technology
Description:
Sarclage manuel des adventices à la houe ("daba") en faisant des billons sur les lignes de plantation du mil /sorgho perpendiculairement à la pente. De petites diguettes sont faites perpendiculairement aux billons en liant deux plants de mil / sorgho (= cloisonnement). Cette technologie peut être combinée avec d'autres pratiques, qu'elles soient traditionnelles (parcage, branchage) ou diffusées par le projet ( régénération naturelle, bandes enherbées).
Il s'agit d'éliminer la compétition entre les adventices et les cultures vivrières et de contrôler le ruissellement. Le billonage dans le rang de mil/sorgho permet aussi de réduire le risque de verse.
Cette technique nécessite un gros investissement en main d'oeuvre, et doit être répétée chaque année.
La technique est appliquée sur les terres cultivables, principalement sur les sols sableux et des pentes faibles (< 5%).
2.3 Photos of the Technology
2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment
Country:
Niger
Region/ State/ Province:
Arrondissement de Tahoua
Further specification of location:
Tahoua
2.6 Date of implementation
If precise year is not known, indicate approximate date:
- more than 50 years ago (traditional)
2.7 Introduction of the Technology
Specify how the Technology was introduced:
- during experiments/ research
Comments (type of project, etc.):
Le sarclage à la houe est une technique pratiquée traditionnellement dans l'Adar. Le sarclo-binage cloisonné constitue une amélioration de cette technique, introduite par le PDRT.
3. Classification of the SLM Technology
3.1 Main purpose(s) of the Technology
- preserve/ improve biodiversity
3.2 Current land use type(s) where the Technology is applied
Cropland
- Annual cropping
Comments:
Major land use problems (compiler’s opinion): Déséquilibre entre ressources naturelles disponibles et populations; Insuffisance alimentaire (faim); Déséquilibre entre ressources naturelles disponibles et cheptel.
Major land use problems (land users’ perception): Insuffisance de bois et de pâturages. Problème d'eau potable dû à l'abaissement des nappes phréatiques. Insuffisance pluviométrique.
3.3 Further information about land use
Water supply for the land on which the Technology is applied:
- rainfed
Number of growing seasons per year:
- 1
Specify:
Longest growing period in days: 90, Longest growing period from month to month: Jun - Oct
3.4 SLM group to which the Technology belongs
- improved ground/ vegetation cover
- improved plant varieties/ animal breeds
3.5 Spread of the Technology
Specify the spread of the Technology:
- evenly spread over an area
If the Technology is evenly spread over an area, indicate approximate area covered:
- 10-100 km2
Comments:
Chiffre de l'année 1997. Les données de l'arrondissement de Tahoua dans lequel l'approche PDRT est appliquée: 1. Superficie: 9.548 km2; 2. Population: 320.000 hbts dans 172 villages; 3. Densité de la population: 32 hbts par km2; 1995: 60 villages avec une superficie de 687 km2 traitée par le projet.
3.6 SLM measures comprising the Technology
agronomic measures
- A6: Others
Comments:
Type of agronomic measures: billonnage isohypse
3.7 Main types of land degradation addressed by the Technology
soil erosion by water
- Wt: loss of topsoil/ surface erosion
chemical soil deterioration
- Cn: fertility decline and reduced organic matter content (not caused by erosion)
Comments:
Main causes of degradation: sécheresses (manque de pluie; pluie mal répartie), régime foncier, faim
Secondary causes of degradation: gestion des sols (pas de jachère; pas suffisamment d'intrants. Mulching, engrais, mat. Organique), déforestation / disparition de la végétation naturelle (inclus les feux de forêts) (combustibles), surexploitation de la végétation pour l’usage domestique (Surexploitation de la végétation), surpâturage, pression de la population (croissance de la population), pauvreté / santé, disponibilité de la main d’oeuvre, éducation, accès à la connaissance et aux conseils
3.8 Prevention, reduction, or restoration of land degradation
Specify the goal of the Technology with regard to land degradation:
- prevent land degradation
- reduce land degradation
4. Technical specifications, implementation activities, inputs, and costs
4.2 Technical specifications/ explanations of technical drawing
Technical knowledge required for field staff / advisors: moyen
Technical knowledge required for land users: faible
Main technical functions: contrôle du ruissellement en nappe: rétention / capture, augmentation de la rugosité de surface, augmentation de l'infiltration, contrôle des adventices
Secondary technical functions: amélioration de la structure du sous-sol (couche dure), réduction de la vitesse du vent
Contour ridging
Remarks: la terre est ramenée dans les rangs de mil/sorgho
Agronomic measure: cloisonnement
Remarks: perpendiculairement aux billons
4.3 General information regarding the calculation of inputs and costs
other/ national currency (specify):
Francs CFA
Indicate exchange rate from USD to local currency (if relevant): 1 USD =:
500.0
Indicate average wage cost of hired labour per day:
1.50
4.5 Costs and inputs needed for establishment
Specify input | Unit | Quantity | Costs per Unit | Total costs per input | % of costs borne by land users | |
---|---|---|---|---|---|---|
Labour | main d'oevre | ha | 1.0 | 3.0 | 3.0 | 100.0 |
Equipment | outils | ha | 1.0 | 1.0 | 1.0 | 100.0 |
Total costs for establishment of the Technology | 4.0 |
Comments:
12 mois duration
4.6 Maintenance/ recurrent activities
Activity | Type of measure | Timing/ frequency | |
---|---|---|---|
1. | billonage cloisonné | Agronomic | env. 1 mois après le premier sarclage / annuel |
4.7 Costs and inputs needed for maintenance/ recurrent activities (per year)
Comments:
Machinery/ tools: houe
Pas de données existantes, premiers résultats attendus en fin 1998
4.8 Most important factors affecting the costs
Describe the most determinate factors affecting the costs:
Main d'oeuvre
5. Natural and human environment
5.1 Climate
Annual rainfall
- < 250 mm
- 251-500 mm
- 501-750 mm
- 751-1,000 mm
- 1,001-1,500 mm
- 1,501-2,000 mm
- 2,001-3,000 mm
- 3,001-4,000 mm
- > 4,000 mm
Agro-climatic zone
- semi-arid
5.2 Topography
Slopes on average:
- flat (0-2%)
- gentle (3-5%)
- moderate (6-10%)
- rolling (11-15%)
- hilly (16-30%)
- steep (31-60%)
- very steep (>60%)
Landforms:
- plateau/plains
- ridges
- mountain slopes
- hill slopes
- footslopes
- valley floors
Altitudinal zone:
- 0-100 m a.s.l.
- 101-500 m a.s.l.
- 501-1,000 m a.s.l.
- 1,001-1,500 m a.s.l.
- 1,501-2,000 m a.s.l.
- 2,001-2,500 m a.s.l.
- 2,501-3,000 m a.s.l.
- 3,001-4,000 m a.s.l.
- > 4,000 m a.s.l.
5.3 Soils
Soil depth on average:
- very shallow (0-20 cm)
- shallow (21-50 cm)
- moderately deep (51-80 cm)
- deep (81-120 cm)
- very deep (> 120 cm)
Soil texture (topsoil):
- coarse/ light (sandy)
- medium (loamy, silty)
Topsoil organic matter:
- low (<1%)
5.6 Characteristics of land users applying the Technology
Market orientation of production system:
- subsistence (self-supply)
- mixed (subsistence/ commercial
Off-farm income:
- 10-50% of all income
Relative level of wealth:
- poor
- average
Level of mechanization:
- manual work
- animal traction
Indicate other relevant characteristics of the land users:
Population density: 10-50 persons/km2
Annual population growth: 3% - 4%
1% of the land users are very rich and own 10% of the land (terres 30 à 40 ha et >30 UBT).
20% of the land users are rich and own 50% of the land (terres de 10 à 30 ha et 16-30 UBT).
20% of the land users are average wealthy and own 30% of the land (terres de 5 à 10 ha et 6-15 UBT).
59% of the land users are poor and own 10% of the land (2 à 5 ha et 0-5 UBT).
Off-farm income specification: Revenus: 1. Du commerce, 2. De l'exode, 3. De l'artisanat
5.7 Average area of land owned or leased by land users applying the Technology
- < 0.5 ha
- 0.5-1 ha
- 1-2 ha
- 2-5 ha
- 5-15 ha
- 15-50 ha
- 50-100 ha
- 100-500 ha
- 500-1,000 ha
- 1,000-10,000 ha
- > 10,000 ha
5.8 Land ownership, land use rights, and water use rights
Land ownership:
- individual, not titled
- individual, titled
Land use rights:
- individual
6. Impacts and concluding statements
6.1 On-site impacts the Technology has shown
Socio-economic impacts
Income and costs
workload
6.4 Cost-benefit analysis
How do the benefits compare with the establishment costs (from land users’ perspective)?
Short-term returns:
neutral/ balanced
Long-term returns:
slightly positive
6.5 Adoption of the Technology
- 10-50%
Comments:
20% of land user families have adopted the Technology without any external material support. There is a little trend towards spontaneous adoption of the Technology
On a commencé à sensibiliser les gens il y a deux ans seulement.
6.7 Strengths/ advantages/ opportunities of the Technology
Strengths/ advantages/ opportunities in the land user’s view |
---|
effets positifs sur les récoltes |
Strengths/ advantages/ opportunities in the compiler’s or other key resource person’s view |
---|
Technologie simple, donc facile à reproduire par tout le monde |
6.8 Weaknesses/ disadvantages/ risks of the Technology and ways of overcoming them
Weaknesses/ disadvantages/ risks in the land user’s view | How can they be overcome? |
---|---|
technologie laborieuse | |
position peu confortable pendant le billonage perpendiculairement à la pente (mal au dos) |
Weaknesses/ disadvantages/ risks in the compiler’s or other key resource person’s view | How can they be overcome? |
---|---|
demande élevée en main d'oeuvre | mécanisation? |
7. References and links
7.1 Methods/ sources of information
- field visits, field surveys
- interviews with land users
7.2 References to available publications
Title, author, year, ISBN:
plan d'opération 09/95-08/99. sept 1995.
Available from where? Costs?
projet
Title, author, year, ISBN:
caractérisation des méthodes traditionnelles de CES. mars 1996.
Available from where? Costs?
projet
Title, author, year, ISBN:
rapport de mission du 20/01 au 10/02/1996 (P. MARTIN). fév 1996.
Available from where? Costs?
projet
Title, author, year, ISBN:
fiches techniques PDRT / Tahoua. jan 1995.
Available from where? Costs?
projet
Title, author, year, ISBN:
rapport no 1: Préserver les coutumes, préparer l'avenir. 1996.
Available from where? Costs?
projet, GTZ, Eschborn (Allemagne)
Title, author, year, ISBN:
Rapport no 3: Les pratiques agricoles. 1997.
Available from where? Costs?
projet, GTZ, Eschborn (Allemagne)
Title, author, year, ISBN:
Rapport no 4: De l' importance de l'arbre dans l'Aïr. 1997.
Available from where? Costs?
projet, GTZ, Eschborn (Allemagne)
Title, author, year, ISBN:
Banque mondiale. Niger: Evaluation de la pauvreté.Un peuple résistant dans un environnement hostile. Rapport No. 15344-NIR. 1996.
Available from where? Costs?
Banque mondiale
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