1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de la Technologie

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Quand les données ont-elles été compilées (sur le terrain)?

30/09/2002

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.5 Référence au(x) questionnaire(s) sur les Approches de GDT

2.1 Courte description de la Technologie

Définition de la Technologie:

Dugout pond is a sunken water harvesting structure constructed along the rills in upper catchment for the purpose of storage of runoff and recharge of ground water.

2.2 Description détaillée de la Technologie

Description:

Dugout pond is a rectangular shape subsurface pond with the excavated material forming an embankment down stream. It is constructed in the upper catchment of the watershed, along the rill/shallow gully. The site for the pond should be where there is a depression. The size may vary from small to large depending on the size of catchment, needs of the farmers, availability of finance, bed rock strata.

Purpose of the Technology: 1- Storage of runoff. 2- Increase in water levels of shallow wells 'odees' through increased percolation. 3- Flood control through series of such structures. 4- Low cost, low risk alternative for poor community. 5- Benefits to community living in upper catchment.

Establishment / maintenance activities and inputs: 1- Site selection with community. 2- Design and preparation of estimate by the project staff. 3- Descussion with VWDC and community, identification of users, descussion regarding contribution, agreement, work plan. 4- Layout and construction under VWDC supervision with technical support from the project. 5- Treatment of catchment.

Natural / human environment: Responsibility of user group.

2.3 Photos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

2.6 Date de mise en œuvre de la Technologie

Si l'année précise est inconnue, indiquez la date approximative: :

• il y a moins de 10 ans (récemment)

2.7 Introduction de la Technologie

Spécifiez comment la Technologie a été introduite: :

• par le biais de projets/ d'interventions extérieures

Commentaires (type de projet, etc.) :

The technology has been developed by the project as modification/improvement to Dugout pond constructed under NWDPRA (National Watershed Development Program for Rainfed Areas).

3.1 Principal(aux) objectif(s) de la Technologie

• s'adapter au changement et aux extrêmes climatiques et à leurs impacts

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Commentaires:

Major land use problems (compiler’s opinion): 1. Utilisation of slopy and stony (class VI) land for agriculture. 2. Agriculture practices along the slope, use of erosion permitting crop eg. Cotton, Maize. 3. Excessive grazing of grass land.

Major land use problems (land users’ perception): shallow soils, low soil moisture , low yields , non-availability of grazing land.

Type of cropping system and major crops comments: Monsoon - Cotton + Maize + Blackgram /Soyabean. Winter (with irrigation) - Wheat + Gram (excluding Cotton fields).

3.3 Informations complémentaires sur l'utilisation des terres

Approvisionnement en eau des terres sur lesquelles est appliquée la Technologie:

• pluvial

Commentaires:

Water supply: Also mixed rainfed - irrigated

Nombre de période de croissance par an: :

• 2

Précisez:

Longest growing period in days: 150 Longest growing period from month to month: Nov - Mar Second longest growing period in days: 135 Second longest growing period from month to month: Jun - Sep

3.4 Groupe de GDT auquel appartient la Technologie

• récupération/ collecte de l'eau
• gestion de l'irrigation (incl. l'approvisionnement en eau, le drainage)
• gestion des eaux souterraines

3.5 Diffusion de la Technologie

Spécifiez la diffusion de la Technologie:

• répartie uniformément sur une zone

Si la Technologie est uniformément répartie sur une zone, indiquez la superficie couverte approximative:

• 10-100 km2

Commentaires:

Total area covered by the SLM Technology is 48 m2.

The area comprises 36 villages with 1632 household mainly tribal. Villages comprise a larger settlement along with a number of hamlets. The topography is rolling and gently undulating. The area forms the catchment of the Larki stream, which forms the upper catchment of the river Mahi.

3.7 Principaux types de dégradation des terres traités par la Technologie

Commentaires:

Main type of degradation addressed: Ha: aridification

Secondary types of degradation addressed: Wg: gully erosion / gullying

Main causes of degradation: other human induced causes (specify) (Social causes - Lack of awareness and mobilisation amongst the communities.), Top down approach (Macro planning rather than micro (village level) planning.)

4.1 Dessin technique de la Technologie

4.2 Spécification/ explications techniques du dessin technique

Technical Drawing of Dugout Pond

Technical knowledge required for field staff / advisors: moderate

Technical knowledge required for land users: low

Main technical functions: increase of infiltration

Secondary technical functions: control of dispersed runoff: retain / trap, water harvesting / increase water supply

Construction material (earth): Excavated material used for embankment.

Construction material (stone): Excavated stones used for pitching.

4.3 Informations générales sur le calcul des intrants et des coûts

autre/ monnaie nationale (précisez):

Rupees

Indiquer le taux de change du dollars en monnaie locale (si pertinent): 1 USD= :

48,85

4.4 Activités de mise en place/ d'établissement

	Activité	Type de mesures	Calendrier
1.	Discussion in VWDC meeting	Structurel	March-April
2.	Site selection	Structurel	March-April
3.	Identification of beneficiaries, users group formation	Structurel	March-April
4.	Design & estimate	Structurel	March-April
5.	Agreement with VWDC	Structurel	March-April
6.	Treatment of catchment area	Structurel	April-May
7.	Construction of dugout pond	Structurel	April-May
8.	Seeding of embankment	Structurel	June-July

4.5 Coûts et intrants nécessaires à la mise en place

Commentaires:

Duration of establishment phase: 12 month(s)

4.6 Activités d'entretien/ récurrentes

	Activité	Type de mesures	Calendrier/ fréquence
1.	Monitoring by users group	Structurel	Year around/Regular
2.	Report of damage, breakage in VWDC	Structurel	Rainy season/After heavy shower
3.	Decision regarding repair by VWDC/UG	Structurel	Rainy season/After heavy shower
4.	Necessary repaires carried out	Structurel	Rainy season/After heavy shower
5.	Desilting	Structurel	Dry season/annual

4.7 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

Commentaires:

The size of dugout described in 2.7.1 is :- Excavated area - 13m long X 12m wide X 2.5m Bund - 30m long X2.5m height X 2m top width X 7m bottom width

4.8 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

1- Cost of excavation increases with hardness of strata. 2- Non availability of stones locally for pitching.

5.1 Climat

5.2 Topographie

Commentaires et précisions supplémentaires sur la topographie:

Landforms: Ridges (ranked 1, gradually undulating topography) and hill slopes (ranked 2)
Slopes on average: Moderate (ranked 1, fields in upper catchment) and gentle (ranked 2, fields in valley portion)

5.3 Sols

Si disponible, joignez une description complète du sol ou précisez les informations disponibles, par ex., type de sol, pH/ acidité du sol, capacité d'échange cationique, azote, salinité, etc.

Soil depth on average: Shallow (ranked 1, fields on ridge/slopes), very shallow (ranked 2, ridge portion) and moderately deep (ranked 3, fields in valley)
Soil fertility: Medium (ranked 1) and low (ranked 2, fields on ridge/slopes, grass land)
Soil drainage/infiltration: Good (ranked 1, sloping land, shallow soils) and medium (ranked 2, fields in valley)
Soil water storage capacity: Low (ranked 1, shallow soils) and medium (ranked 2, deep soils)

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

Population density: 200-500 persons/km2
Annual population growth: > 4%
33% of the land users are average wealthy and own 33% of the land (Few farmers with wells, fields in valley.).
50% of the land users are poor and own 57% of the land (Majority of farmers.).
17% of the land users are poor and own 10% of the land (Very small holding.).
Off-farm income specification: While main income is from rainfed agriculture, significant income is obtained during migration, which increases during drought periods.
Level of mechanization: Animal traction (ranked 1, land preparation), manual labour (ranked 2, land preparation, weeding, harvesting) and mechanised (ranked 3, threshing)

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• communauté/ village

Droits d’utilisation des terres:

• accès libre (non organisé)
• individuel

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

6.5 Adoption de la Technologie

Si disponible, quantifiez (nombre de ménages et/ou superficie couverte):

1672

Commentaires:

100% of land user families have adopted the Technology with external material support

1632 land user families have adopted the Technology with external material support

Comments on acceptance with external material support: estimates

40 land user families have adopted the Technology without any external material support

Comments on spontaneous adoption: survey results

There is a little trend towards spontaneous adoption of the Technology

Comments on adoption trend: The community is very poor and hence requires some financial support to offset loss of wages.