FU Berlin
Improved Agricultural Water Management In the Nile Basin
Intervention Analysis
S. B. Awulachew, S. S. Demisse, D. J. Molden
Introduction IWMI
Appropriate Interventions that increase the positive role and mitigate C) Large Scale Interventions and Impact:
the negative impact of water through water development and
management in the Nile Basin can contribute to: agricultural -Interventions types: irrigation, hydropower, environment and wetlands
productivity and growth, poverty reduction, livelihood Increments of Irrigation in current, Medium and Long Term Scenarios
improvement, national and trans‐national (regional) economic
transformations. The objectives of intervention analysis are: 5.00
Long-term
1) Inventory and characterize existing interventions in production
Irrigation Coverage in Million ha
Medium-term
systems 4.00
Current
2) document success and failures of interventions, map
3.00
intervention types, undertake performance analysis of existing
interventions 2.00
3) undertake tradeoff analysis, ranking and modeling to select and
evaluate high impact interventions, analyze consequences and 1.00
device implementation strategy
Types of Interventions and Impacts 0.00
Burundi Egypt Ethiopia Kenya Rwanda Sudan Tanzania Uganda
a) Small Holder Scale Interventions: Rain fed, Irrigation, Countries
Livestock The 3 scenarios, how much
Example: AWM interventions for small holder more irrigation planned?
Continuum of Water control and Development, Lifting, Conveyance and Application
Water Lifting/ Conveyance
‐Current status = 5.5 Mha
Water Control/development Water Application
R WH ‐Medium scenario = 8 Mha
a Pond
i ‐Long term scenario = 10.6 Mha
n
w SWC Is there enough water?
a Pit
t s ‐No not enough river water
e
r
S
‐Realizing future plans require
Water Sources
u coordinated efforts are needed
r
f Diversion Micro dam
a ‐But more rainwater could be
c
e
used for more agriculture
w
a
t
Measures
e
r •Need for water productivity gains
Hand dug •Water savings in the existing schemes
G
wells
r through increasing irrigation efficiency, re‐
o
u use of water, etc
d
n •Promote low consumptive & high yield
crops
•New strategies of storage & management
b) Impacts of Small Holder Ag.Water Management Interventions
Simulated Nile River flow for the long‐term
development scenario
Poverty profiles Poverty profiles
70 60
60 50
Conclusions
50 40 Incidence
P e rc e nt
‐ Impact of use of technologies for water
P e rc e nt
40 User
30 Poverty gap
30 non-user 20 Severity
access is significant in poverty reduction
20 10
10 0
‐Upgrading rainfed systems is essential in
0
Pond Shallow Deep well micro River order to enhance agricultural productivity
Incidence Poverty gap Severity well dams diversions
Poverty indices
‐ Before expanding irrigation area, efforts for
AWM technologies
increasing productivity of water, water saving,
22% less poverty among users; up to 50% poverty reduction with users of deep wells increased water management are required
For more information contact: e‐mail address
s.bekele@cgiar.org