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Water Based Growth Corridor Approach

Water Based Growth Corridor Approach. Irrigation Advisory Group Ministry of Water, Irrigation and Energy. 1. 2. 3. 4. 5. Definition of a Water Based Growth Corridor. Rationale of WBGC Initiative. Objective and Goal of WBGC. Processes for the Development of WBGC.

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Water Based Growth Corridor Approach

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  1. Water Based Growth Corridor Approach Irrigation Advisory Group Ministry of Water, Irrigation and Energy

  2. 1 • 2 • 3 • 4 • 5 • Definition of a Water Based Growth Corridor • Rationale of WBGC Initiative • Objective and Goal of WBGC • Processes for the Development of WBGC • Draft Concept of GC for Lower Omo-Gibe basin • Presentation Outline

  3. What is a WBGC? • Growth Corridor (GC) – a development model to create jobs, mobilize resources and stimulate key economic sectors sustainably. • WB Growth Corridor (WBGC) – a water centered integrated development approach to intensify irrigated agriculture on areas/basins with high resource potential. • It helps in concentrating resources and efficiently utilizing them. • It creates forward and backward linkage of irrigated agriculture with other economic sectors.

  4. What is a WBGC? • Ethiopia has 12 RB & each with many sub-basins • Master Plan studies – 3.7 mha • IWMI (2010) – 5.4mha • ATA (2018) – 11.1mha • GIRDC (2018) - over 21 mha • A WBGC refers to area with high resource potential • EntireRiver basin or • one or more of its sub-basins

  5. Rationale of a WBGC initiative • Need for concentration and coordination of resources • concentrate development efforts on potential areas to offer both high productivity and a huge investment opportunity • Need for Coherence with the National and SDG Strategies • the growth corridors shall offer the potential to help reduce rural poverty, improve food and nutrition security, and improve environmental sustainability. • Need to address high rate of rural youth unemployment • the growth corridor shall offer the best possible way to assure the rural youth a better future through various on-farm and off-farm employment opportunities within the value chains.

  6. Objectives and Goal Irrigation Development • increased agricultural productivity and improved food security • increased the income and changed the livelihood of farmers • allowed the development of supportive investments in the value chain • created competitive, profitable and rapidly growing agricultural sector • properly managed land and water resources Market & IP Input

  7. Processes in the Development of WBGC

  8. Draft Concept of GC @ Lower Omo RB • Location: • Covers the south-western part of the country; • within administrative areas of Oromia & SNNPR; • Topography: • Upper part = rugged topography & mountainous landscape (with 900 – 3300m a.s.l) • Lower part = lowland plain topography (300 – 900 m a.s.l)

  9. Draft Concept … • People & Source Livelihoods: • O-G basin is home to millions of people with subsistence level livelihoods • Predominant source of livelihood is • Agriculture for the Highlanders & • Pastoralism for the Lowlanders • Water Resource Potential: • O-G basin is endowed with 17.9 BCM/year water resource

  10. Irrigation Development Status in Omo-Gibe Basin Background Negligible………….. for an area with ① 18 BMC water resource potential per year ……..& ②Tens of millions of people engaged in subsistence level livelihood !?! …… Irrigated area in the Basin increased from 10,000 ha (1996) to 175,000 ha (2018)

  11. Findings of the Omo-Gibe Master Plan Study (1996) ❶Potential SSI & M/LSI: <100,000 ha ❷ Constraints to expansion of irrigation in the Basin • Upland: Unsuitable Topography • Mountainous & rugged landscape; • Perennial streams are in deeply cut valleys (at elv. of <900 – 1500 m), but • arable land elv. is above 1500 m • Lowland: is plain but soil has unfavorable properties for the commonly irrigated crops • Crevassing, sodicity, poor drainage, vertisol

  12. Proposed Interventions –-- 4 project components may be identified C-1 C-1 C-4 C-4 C-3 C-2 C-4 C-3 C-2 C-4

  13. Proposed Area of Intervention .Component 1: Upland Areas (1-1) Small scale irrigation using (i) Water harvesting (dams, ponds, spate….) (ii) Shallow GW integrated with MAR (fractured rock system + ample runoff) (1-2) Enhance rainwater productivity (by scaling up existing SLM practices) Key Actors: Communities, MOA & Development Partners in partnership with MOWIE Role of MOWIE: To facilitate technical support for the effective implementation of WH, MAR and SLM

  14. Proposed Area of Intervention .Component 2: lowland Area flanking the Omo River Irrigated pasture on 250,000 ha (Note: water requirement of grass is low!) . Component 3: lowland (upslope of component 2 area) Irrigation on 350,000 ha integrated with Managed Aquifer Recharge

  15. Proposed Area of Intervention Component -2 Basic Facts ① the plain area flanking the Omo valley is marginally suitable for irrigation (b/c of unfavorable soil properties) (Master plan study, 1996). ② Soil properties were confirmed by Kuraz Sugar development soils study, 2013 Our observation: The soils are good for pasture ҉  Objective of Component 2 Pasture development (for value addition & export) Key Actors: Communities, MOWIE, MOAL, Pastoralist Affairs & Development Partners. Role of MOWIE: Technical studies, construction, technical capacity building on water management Irrigation Suitability map Master Plan (1996)

  16. Component 2 - Proposal …..issue to be resolved • Basic facts: • Irrigation scheme layout for the area flanking the Omo River (250,000 ha) was prepared by MOWR, 2010 for non-pasture crops regardless of the soil conditions. • Outstanding Issue: Crop Choice • (option 1): Pasture (for value addition & export) • (option 2): go for other crops & get low result Option 9- Diversion Right Side: 150,000ha Left Side: 100,000ha Total: 250,000ha Irrigation Suitability map Master Plan (1996) Source: MOWR, 2010. Feasibility Level Design of Ratte Irrigation Project. Addis Ababa

  17. Component 3 Proposal The pink colored polygon (>350,000 ha) has good aquifer characteristics (Master plan, 1996),  However, it is empty aquifer b/c natural GW recharge is almost nil Component 3 site Component 2 site Irrigation Suitability map

  18. Component 3…Proposal Our Proposal The site has a good potential for  implementing MAR;  growing various crops Key Actors: MOWIE, MOAL, Pastoralist & Development Partners Role of MOWIE: Technical studies, construction, technical capacity building on water management Hydrogeological Potential map

  19. Component 3: Diversion from the Omo River

  20. . Component 4: lowland Seasonal flood diversion for  Spate Irrigation of pasture  MAR (enhance drinking water supply) Source: Spate Irrigation Network. Spate Irrigation Systems in Raya Valley (Ethiopia): Overview Paper #13

  21. Component-4: e.g. Harnessing Keske Seasonal Stream

  22. e.g. Flood diverting & spreading for MAR

  23. . Summary

  24. Thank you

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