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

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Missenyi District Council (Missenyi District Council) - Tanzanie

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

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

04/12/2015

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

Oui

1.4 Déclaration sur la durabilité de la Technologie décrite

Est-ce que la Technologie décrite ici pose problème par rapport à la dégradation des terres, de telle sorte qu'elle ne peut pas être déclarée comme étant une technologie de gestion durable des terres?

Non

2.1 Courte description de la Technologie

Définition de la Technologie:

Improvement of degraded rangeland in savannah using multiple rangeland improvement techniques that complement each other to optimize livestock production and productivity sustainably.

2.2 Description détaillée de la Technologie

Description:

Multiple rangeland and pasture improvement techniques that combines water harvesting, rangeland reseeding and pasture establishment, livestock breeding management techniques to restore degraded rangeland in savannah with high livestock and optimize livestock production and productivity sustainably. These includes; 1. Chaco dam excavation for rain runoff harvesting mainly during the rainy season (February to April and August to December) mostly;(i).To ensure year round availability of water largely for watering livestock and partly for domestic and agriculture use especially during the main dry season when local sources (Ponds, springs or stream) are dry,(ii).To reduce soil erosion by water (lily or gully erosion, (iii).To reduce river bank erosion and silitation due direct watering of livestock in to Kagera river, (iii). To reduce the distance animal has to walk for watering and (iv) to reduce water use conflicts between herders and other land users. 2. Establishment of pasture demonstration plots where farmers are exposed to a basket choice (Low cost technique Vs high cost technique) of pasture and rangeland improvement technique either through ;( a). Tilling the land and broadcasting drought tolerant indigenous degenerated palatable pasture species of high nutritive value and, mainly (i).Grass; Cenchrus cliaris, Chloris gayana and (ii).Legumes; Centrocema puberse, Lablab purpureus, Mucuna Pluriens and Puperaria Phaseilides ) to a manured degraded rangeland; (b).i. Encouraging re-growth of proper pasture species in a degraded area to take place through clearing bushes, shrubs or trees ( leaving edible shrubs and few selected shed trees especially acacia spp which allow pasture re-growth underneath and provide shed against intense sun radiations to livestock especially during the main dry season- July to September); ii. Closing the degraded area by fencing using live indigenous trees or using wooden pole with or without barbed wire for 2 -3 years, removal of anthills and discouraging regeneration of unproductive invasive species and hence returning the rangeland to productivity;3. Genetical improvement of local cattle (Ankole or Zebu) through crossbreeding with introduced improved bull especially boran, Frisian or Mpwapwa bulls to allow farmers to keep few improved offspring of high production and productivity ;4.Farmer training on rangeland improvement and grazing management including hay making and how to estimate carrying capacity 5. Establishment of livestock markets directly on the rangeland to encourage off take and hence control stocking rate and increase carrying capacity.

Purpose:To contribute to the increase of herders’ standard of living through increased livestock production and productivity while conserving the environment

Estblishment activities:1. Community mobilization and formation of project management commetee with 10 members; 2. Identification of project sites; 3. Land clearing; 4. Establishment of pasture demonstration plots; 5. Excavation of chacodam and construction of watering troughs; 6. Fencing of individual owned land using wooden pole with barbed wire or live fencing using euphobia spp; 7. Farmer training on pasture establishment and controll of stocking rate; 8. Procurement of bulls (Boran or Mpwapwa) for cross breeding with ankole females; 9. Construction of livestock market
Maintanence Activities: 1. Repair of livestock infrastructures (Chacodam, watering troughs, livestock fence, livestock markets).

The technology is implemented in extensive grazing land under semi arid condition receiving 600 -1000mm of rains per year. A combination of rangeland improvement measures (Excavation of chacodam for rainwater runoff harvesting, pasture improvement and establishment techniques, fencing and breeding management through cross breeding local cow (Ankole/zebu) with Boran/Mpwapwa bulls) complement each other to restore degraded rangeland and increase livestock production and productivity in savannah. The slope is gentle to moderate; soil depth is shallow and soil texture clay. Heavy tools (Bulldozer) to Simple hand tools are traditional used. Bulldozers are used during chacodam excavation and bush clearing by well-off herder will small hand tools such as hand hoe, bush knife and spade are used smallholder herders for excavation of water pond and construction of indigenous livestock watering points. Land ownership is Communal/village, individual titled and individual not titled. Water use rights is open access (unorganized), communal (organized). Application of this technology determined by high establishment costs.

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

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

• améliorer la production
• réduire, prévenir, restaurer les terres dégradées

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

Commentaires:

Major land use problems (compiler’s opinion): Major land use problem without conservation includes, overgrazing, soil erosion, siltation of water bodies (Kagera River) and loss of paratable pasture spp.
Major land use problems (land users’ perception): Shortage of pasture and water for livestock

Si l'utilisation des terres a changé en raison de la mise en œuvre de la Technologie, indiquez l'utilisation des terres avant la mise en œuvre de la Technologie:

Grazing land: Extensive grazing land

3.3 Informations complémentaires sur l'utilisation des terres

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

• pluvial

Nombre de période de croissance par an: :

• 2

Densité d'élevage/ chargement (si pertinent):

> 100 LU /km2

3.4 Groupe de GDT auquel appartient la Technologie

• pastoralisme et gestion des pâturages

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:

• 1-10 km2

3.6 Mesures de GDT constituant la Technologie

Commentaires:

Type of agronomic measures: legume inter-planting, manure / compost / residues
Type of vegetative measures: in blocks

3.7 Principaux types de dégradation des terres traités par la Technologie

Commentaires:

Main causes of degradation: overgrazing (Overgrazing due overstocking due to illegal migration on livestock), change in temperature (increased average temperature from 20.9o to 21.5oC in the past 20 years), Heavy / extreme rainfall (intensity/amounts) (decreased average annual rainfall from 1000mm to 870mm in the past 20 years), droughts, land tenure (Lack of village land use plan), inputs and infrastructure: (roads, markets, distribution of water points, other, …)
Secondary causes of degradation: deforestation / removal of natural vegetation (incl. forest fires) (Uncontrolled bush fire set purposely to remove overgrown bushes), disturbance of water cycle (infiltration / runoff), change of seasonal rainfall, population pressure (In migration of people from neighbourig districts and countries), education, access to knowledge and support services

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• réduire la dégradation des terres

4.1 Dessin technique de la Technologie

4.2 Spécification/ explications techniques du dessin technique

Location: Bubale Village. Missenyi District/Kagera
Technical knowledge required for field staff / advisors: high
Technical knowledge required for land users: high

Main technical functions: improvement of ground cover, increase in organic matter, water harvesting / increase water supply, promotion of vegetation species and varieties (quality, eg palatable fodder)
Secondary technical functions: control of raindrop splash, control of concentrated runoff: retain / trap, improvement of topsoil structure (compaction), stabilisation of soil (eg by tree roots against land slides), increase / maintain water stored in soil

Legume inter-planting
Remarks: Legumes are inter-planted with grass to increase the nutritive value of the pasture
Manure / compost / residues
Material/ species: Farmyard manure
Quantity/ density: 60t/Ha
In blocks
Vegetative material: G : grass, O : other
Grass species: Cenchrus cliaris, Chloris gayana, elephant grass,
Other species: Legumes:Centrocema puberse, Lablab purpureus, Mucuna Pluriens and Puperaria Phaseilides
Dam/ pan/ pond
Depth of ditches/pits/dams (m): 2.3
Width of ditches/pits/dams (m): 40
Length of ditches/pits/dams (m): 80
Height of bunds/banks/others (m): 6
Width of bunds/banks/others (m): 4
Length of bunds/banks/others (m): 240
Structural measure: Water trough
Depth of ditches/pits/dams (m): 2.5
Width of ditches/pits/dams (m): 1
Length of ditches/pits/dams (m): 21
Structural measure: Appron
Depth of ditches/pits/dams (m): 3
Width of ditches/pits/dams (m): 0.3
Length of ditches/pits/dams (m): 27
Construction material (earth): Clay soil
Construction material (concrete): concrete
Vegetation is used for stabilisation of structures.
Control / change of species composition: Crossbreeding local female cattle(Ankole or Zebu) with boran or mpwapwa bulls
Other type of management: Closing the degraded area by fencing using pole or live indigenous trees with or without barbed wire for 2 -3 years, removal of anthills and discouraging regeneration of unproductive invasive species.

4.3 Informations générales sur le calcul des intrants et des coûts

autre/ monnaie nationale (précisez):

Tanzanian Shilling

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

2186,41

4.4 Activités de mise en place/ d'établissement

	Activité	Type de mesures	Calendrier
1.	Procurement of 6 Boran/Mpwapwa bulls	Modes de gestion
2.	Transportation of bulls from Dodoma	Modes de gestion
3.	Vaccination against East Cost fever (ECF)	Modes de gestion
4.	Fencing	Modes de gestion	Procument Barbed wire
5.	Excavation of water chaco dam	Structurel	During the dry season
6.	Fence construction	Structurel	During the dry season
7.	Construction of livestock market	Structurel
8.	Land preparation	Végétale	Eary June to september
9.	Manure application	Végétale	Mid september to early november
10.	Planting	Végétale	Early octobar

4.5 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	labour	ha	1,0	810,93	810,93
Equipements	tools	ha	1,0	34,0	34,0
Matériel végétal	seeds	ha	1,0	1204,0	1204,0
Engrais et biocides	compost/manure	ha	1,0	274,42	274,42	20,0
Matériaux de construction	Chacodam Excavation	ha	1,0	16007,0	16007,0	20,0
Matériaux de construction	Const livestock makert	ha	1,0	12577,0	12577,0	20,0
Autre	Procument of 6 bulls	ha	1,0	548,84	548,84	20,0
Autre	Vaccination	ha	1,0	54,88	54,88
Autre	Fencing	ha	1,0	1957,7	1957,7
Coût total de mise en place de la Technologie					33468,77

Commentaires:

Duration of establishment phase: 36 month(s)

4.6 Activités d'entretien/ récurrentes

	Activité	Type de mesures	Calendrier/ fréquence
1.	Repair of the fence	Modes de gestion	Once per year
2.	Weeding and bush thinning	Agronomique	0nce per year
3.	Construction of fire break	Agronomique	Once per year
4.	Harvesting pasture seeds	Agronomique	Once per year

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

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	labour	ha	1,0	205,34	205,34	20,0
Equipements	tools	ha	1,0	34,0	34,0
Coût total d'entretien de la Technologie					239,34

Commentaires:

Machinery/ tools: Hand hoe, bush knife, Bulldozer, handhooe, spade, truck, Hand hoe, hamer, nails, woods

4.8 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

Excavation of chacodam, fencing and procurement of breeding bulls

5.1 Climat

5.2 Topographie

5.3 Sols

5.4 Disponibilité et qualité de l'eau

5.5 Biodiversité

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

Land users applying the Technology are mainly common / average land users
Population density: 10-50 persons/km2
5% of the land users are very rich and own 50% of the land.
35% of the land users are rich and own 25% of the land.
55% of the land users are average wealthy and own 10% of the land.

5.7 Superficie moyenne des terres détenues ou louées par les exploitants appliquant la Technologie

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

Propriété foncière:

• communauté/ village
• individu, sans titre de propriété

5.9 Accès aux services et aux infrastructures

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Disponibilité et qualité de l'eau

Revenus et coûts

Impacts socioculturels

Impacts écologiques

Cycle de l'eau/ ruissellement

Sols

Réduction des risques de catastrophe et des risques climatiques

6.2 Impacts hors site que la Technologie a montrés

6.3 Exposition et sensibilité de la Technologie aux changements progressifs et aux évènements extrêmes/catastrophes liés au climat (telles que perçues par les exploitants des terres)

Extrêmes climatiques (catastrophes)

Catastrophes météorologiques

	Comment la Technologie fait-elle face à cela?
tempête de vent locale	bien

Catastrophes climatiques

	Comment la Technologie fait-elle face à cela?
sécheresse	bien

Commentaires:

Construction of chaco dam for water harvesting during the wet season to be used during the dry season, planting drought tolerant pasture sp

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

Commentaires:

50 land user families have adopted the Technology without any external material support
There is a strong trend towards spontaneous adoption of the Technology

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue de l'exploitant des terres
Increased livestock production(Milk and Meat)
Increased farm income

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Increased water availability for livestock and domestic use
Increased pasture availability for livestock
Increased conservation knowledge
Increased livestock production and productivity

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
High fire risk	Strengthener fire control bylaw, control burning and use of fire break

7.1 Méthodes/ sources d'information