1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

CDE Centre for Development and Environment (CDE Centre for Development and Environment) - Switzerland

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

Ministère des Ecovillages, des Bassins de Rétention, des Lacs artificiels et de la Pisciculture - Projet d'appui à la petite irrigation locale (PAPIL) - Senegal

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

ADAF / YUNGAR Consultants agricoles - Senegal

1.3 Conditions regarding the use of data documented through WOCAT

The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:

Yes

2.1 Short description of the Technology

Definition of the Technology:

Une technologie permettant de retenir les eaux de ruissellement et de reduire la salinité des terres.

2.2 Detailed description of the Technology

Description:

Ouvrage constitué d un déversoir central en beton armé de 30 m et d'une digue en terre de 400 m.

2.3 Photos of the Technology

2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment

2.6 Date of implementation

If precise year is not known, indicate approximate date:

• less than 10 years ago (recently)

2.7 Introduction of the Technology

Specify how the Technology was introduced:

• through projects/ external interventions

Comments (type of project, etc.):

2009

3.1 Main purpose(s) of the Technology

• reduce, prevent, restore land degradation

3.2 Current land use type(s) where the Technology is applied

Land use mixed within the same land unit:

Yes

Specify mixed land use (crops/ grazing/ trees):

• Agro-silvopastoralism

Comments:

Principaux problèmes d'utilisation des sols (perception des utilisateurs fonciers): absence d'activités agricoles et de patures à cause d'une forte salinisation des sols et de la nappe

Usage futur (final) de la terre (après la mise en œuvre de la technologie SLM): Mélangé: Mp: Agro-pastoralisme

3.3 Has land use changed due to the implementation of the Technology?

Has land use changed due to the implementation of the Technology?

• Yes (Please fill out the questions below with regard to the land use before implementation of the Technology)

Land use mixed within the same land unit:

Yes

Specify mixed land use (crops/ grazing/ trees):

• Agro-silvopastoralism

3.5 SLM group to which the Technology belongs

• cross-slope measure

• Digue anti-sel

3.6 SLM measures comprising the Technology

Comments:

Main measures: structural measures

3.7 Main types of land degradation addressed by the Technology

Comments:

Main type of degradation addressed: Cs: salinisation / alcalinisation

Secondary types of degradation addressed: Bc: réduction de la couverture végétale, Hg: modification dans les nappes phréatiques et aquifères

Main causes of degradation: déforestation / disparition de la végétation naturelle (inclus les feux de forêts) (déforestation due à la coupe de la mangrove), surexploitation de la végétation pour l’usage domestique (surexploitation liée à la pauvreté), sécheresses, autres causes naturelles (avalanches, éruptions volcaniques, topographie extrême, coulée de boue, etc.) Spécifier. (intrusion de l'eau salée)

Secondary causes of degradation: pression de la population, pauvreté / santé, gouvernance / institutionnel (absence de conventions en rapport avec l utilisation des ressources naturelles et octroie de permis aux allochthones)

3.8 Prevention, reduction, or restoration of land degradation

Specify the goal of the Technology with regard to land degradation:

• restore/ rehabilitate severely degraded land

Comments:

Main goals: rehabilitation / reclamation of denuded land

Secondary goals: prevention of land degradation, mitigation / reduction of land degradation

4.1 Technical drawing of the Technology

4.3 Establishment activities

	Activity	Timing (season)
1.	Fondation

7.1 Methods/ sources of information