ministry of water and irrigation (mowi united republic of tanzania
TRANSCRIPT
MINISTRY OF WATER AND MINISTRY OF WATER AND IRRIGATIONIRRIGATION
(MoWI(MoWI
UNITED REPUBLIC OF UNITED REPUBLIC OF TANZANIATANZANIA
TANZANIA WATER BASINSTANZANIA WATER BASINS
DISTIRIBUTION OF IRRIGATION DISTIRIBUTION OF IRRIGATION POTENTIALSPOTENTIALS
High potential: 2.3 million ha High potential: 2.3 million ha Medium potential: 4.8 million ha Medium potential: 4.8 million ha Low potential : 22.3 million haLow potential : 22.3 million haTotal 29.4 million haTotal 29.4 million ha
KILIMANJARO ZONAL KILIMANJARO ZONAL IRRIGATION AND TECHNICAL IRRIGATION AND TECHNICAL
SERVICES UNIT (KZITSU)SERVICES UNIT (KZITSU)
The KZITSU covers the three regions:The KZITSU covers the three regions:– Tanga - 26,809 sq.km;Tanga - 26,809 sq.km;– Kilimanjaro - 13,309 sq.km;Kilimanjaro - 13,309 sq.km;– Arusha - 36,486 sq.km.Arusha - 36,486 sq.km.
Total irrigation potential is Total irrigation potential is approximately 219,542 haapproximately 219,542 ha whereas whereas
total area under irrigation is total area under irrigation is estimated at over 96,513 ha as estimated at over 96,513 ha as
follows:follows:Tanga region: Tanga region: 8,676 ha 8,676 haKilimanjaro region: Kilimanjaro region: 45,767 ha45,767 haArusha region: Arusha region: 42,070 ha 42,070 ha 96,513 ha 96,513 ha
According National Irrigation Master According National Irrigation Master Plan(2002), there are four (4) types of Plan(2002), there are four (4) types of small-holder irrigation schemes existing in small-holder irrigation schemes existing in Kilimanjaro Irrigation Zone:Kilimanjaro Irrigation Zone:
Traditional irrigation schemes………. 630 Traditional irrigation schemes………. 630 Water harvesting schemesWater harvesting schemes ((Spate Irrigation)Spate Irrigation) …………..…………....6 …………..…………....6
Modern irrigation schemes……………..26 Modern irrigation schemes……………..26 Improved traditional irrigationImproved traditional irrigation
Schemes………………………………...42 Schemes………………………………...42 TOTAL 704TOTAL 704
ZONAL IRRIGATION AND TECHNICAL SERVICES UNITS(ZONAL IRRIGATION ENGINEERS / OFFICERS)
IRRIGATION INFRASTRUCTURE
CONSTRUCTION AND SUPERVISION SECTION
(HEAD)
IRRIGATION RESEARCH, TECHNOLOGY PROMOTION AND
MONITORING & EVALUATION SECTION (HEAD)
IRRIGATED CROP PRODUCTION PROMOTION AND TECHNOLOGY
DISSEMINATION SECTION(HEAD)
IRRIGATION RESEARCH, TECHNOLOGY PROMOTION AND MONITORING &
EVALUATION DIVISION(ASSIT. DIRECTOR)
IRRIGATION SECTOR(DIRECTOR)
MINISTRY OF WATER AND IRRIGATION
IRRIGATED CROP PRODUCTION, OPERATION AND MAINTENANCE AND TECHNOLOGY
DISSEMINATION DIVISION(ASSIST.. DIRECTOR)
IRRIGATION OPERATION AND
MAINTENANCE AND DOCUMENTATION
SECTION(HEAD)
IRRIGATION PLANNING AND
DESIGN SECTION(HEAD)
DISTRICT IRRIGATION
OFFICES
WATER SECTOR
IRRIGATION INFRASTRUCTURE
DEVELOPMENT DIVISION(ASSIST. DIRECTOR)
ORGANIZATIONAL STRUCTURE – KILIMANJARO ZONAL IRRIGATION AND
TECHNICAL SERVICES UNIT
ASSISTANT ZONAL IRRIGATION
ENGINEER
WORKSHOP AND
MACHINERY MAITENANCE (HEAD
OF SECTION)
SURVEY AND DESIGN
(HEAD OF SECTION)
CONSTRUCTION, SUPERVISION
AND FOLLOW-UP
(HEAD OF SECTION)
SOILS, AGRONOMY AND
DOCUMENTATION
(HEAD OF SECTION)
ACCOUNTS
(Accoutants)
PROCUREMENT
(Supplies Officers)
SURVEY
(Surveyor)
DESIGN
(Engineer)
SOILS
(Soil Scientist)
AGRONOMY
(Agronomist)
DOCUMENTATION
(Documentalist)
CONSTRUCTION AND
SUPERVISION
(Engineer)
FOLLOWUP OF OPERATION AND
MAINTENANCE
(Engineer / Agronomist)
FINANCE AND
ADMINISTRATION
ACCOUNTS AND
PROCUREMENT
(HEAD OF SECTION)
REGIONAL IRRIGATION
OFFICE
(Irrigation Engieer / Officer)
DISTRICT IRRIGATION
OFFICE
(Irrigation Engieer / Officer)
ZONAL IRRIGATION AND TECHNICAL SERVICES UNIT
(ZONAL IRRIGATION ENGINEER)
• Role of the Zonal Irrigation and Technical Services Units:– Assist districts in identification of potential areas
for irrigation development;– Conduct topographical surveys or supervise
survey work whenever implemented by private surveyors;
– Assist districts to develop plans and designs of irrigation schemes and prepare tender documents for District Tender Boards;
– Assist districts in the process of tendering of works and procurement of facilities;
– Assist districts in supervision of contracts;
– Conduct awareness seminars to district staff and facilitate district teams to organize awareness seminars and workshops to farmers;
– Assist in the arrangement of training for various stakeholders;
– Assist in the commissioning of completed irrigation schemes;
– Selection of dam sites and design dams for construction;
– Assist districts in monitoring production in completed irrigation schemes;
– Assist districts in the preparation of sub-component budgets; and
– Preparation and submission to BTC of compiled sub-component budget, quarterly and annual Reports.
Some important activities in hand1.0 Rehabilitation of Makeresho Irrigation
Scheme (2009/10…..)2.0 Rehabilitation of Mandaka Mnono
Irrigation Scheme (2009/10…..)3.0 Kivulini Irrigation Scheme (2009/10…..)4.0 Mbuganyekundu Irrigation scheme (2009/10…..)
Makeresho headworks completing sluice gate and intake gate
• Diversion works for Makeresho headworks construction
Makeresho main Canal construction
2.0 Mandaka Mnono Irrigation Scheme
Concrete block lining for mandaka Mnono MC
Construction of Flume for Mandaka Mnono MC
3.0 Kivulini Irrigation Scheme
Kivulini Main canal lining with concrete blocks
Cattle trough for livestock
4.0 Mbuganyekundu Irrigation Scheme– Spate Irrigation
• Flood dyke construction to protect the floods entering the scheme
Baray River during floods
Main Canal Check drop structure
Division structure
Harvested Onions on bags
• Onion harvesting parking in 10 kg bags ready for export
DIVERSIFICATION OF SPATE IRRIGATION
Use of harvested crop leftover for livestock feeding
Stock piling maize leftover after harvest storing for future consumption
• Truck carrying maize leftover for stockpiling
• Stockpiling maize leftover for livestock consumption during dry season
• Hays of beans leftover for livestock which are said to have high nutrients
Naming’ongo Irrigation scheme one of typical Spate Irrigation
scheme
• Sketch of headwork design
Newly completed headwork with a bridge
Trash Rack
Semi Automatic Flood Flushing
gates
• Tree logs in front of upstream apron after flooding
• Downstream of headworks the part with semi-automatic Flood Flushing gates
Semi-Automatic Flood flushing gates
• Downstream of headwork/bridge
Solid wear part
Semi-automatic Flood Flushing gates
Chain saw cutting logs of trees
Cut down tree logs using chain
saw
• Beneficiaries cutting down the tree logs using chain saw
Cut down tree logs using chain
saw
OTHER IMPORTANT ASPECT OF SPATE IRRIGATIONespecially improvement of Post Harvest Losses which is estimated to be 40%
• Traditional wooden stick storage facility
Inlet /outlet
• Storage facility made of soil bricks with capacity 1000 kgs
Inlet
Outlet with a pad lock
• Storage facility made of burnt bricks with capacity 2,000 kgs
Outlet with a pad lock
Inlet
• Storage facility made of cement paste with capacity 1000 kgs
inlet
Outlet with a pad lock
Improved grain storage tanks with capacity of 50 tons
Outlet with a pad lock
Inlet
Other coupled activities with regard to Spate Irrigation and adaption to climate change
a) Water saving technologies b) Environmental protection by minimizing use of firewood in (1) Improved cooking stoves (2) Use of Rice husks to burn bricks
a) Rainwater harvesting tank from roofs with capacity of 16,000 lts
Outlet with a pad lock
Inlet pipe from roof gutters
• Drip irrigation – Bucket kit
lock20 lt bucket
Lateral pipes
• Drip irrigation family Kit
200 lt water storage tank
Filter
Laterals
• Drip irrigation at agricultural show
Laterals
Agricultural Farmers show on every 8th of August of each year. Demonstration of water saving technologies
200 lt water storage tank
200 lt water storage tank
Use of Tridle pumps for irrigation
Treadle pump
b) Improved Stove it uses only quarter of fire wood
Collecting rice husks from paddy milling machines
Using rice husks to burn bricks
Using rice husks to burn bricks
Participation in International Workshop on Mainstreaming Spate irrigation in Higher Education will be fruitful if at the end of workshop we will be able to produce curriculum which can put the acquired knowledge into practice and solve people’s problem at grassroot level.
I can quote former United Nation Secretary General Mr. Koffi Annan who once said that in ‘Africa Knowledge is not lacking. What is lacking is to put the Knowledge into practice”
Materials I brought with me which can be useful to workshop1) Development of Standard scheme design document for Rainwater Harvesting Based Irrigation2) Tanzanian National Irrigation Policy
3) Arusha Technical College (ATC) Degree in Irrigation curriculum
Opinions expressed during my presentation does not necessarily reflects those from Ministry of Water and
Irrigation
By Eng. Kamil Aron Nkya255 754 496 805