Solutions for a water secure world
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Transcript of Solutions for a water secure world
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Cover slide option 1 Title Solutions for a water secure world
Jeremy Bird International Water Management Institute
GIZ17 March 2016
Photo: Hamish John Appleby/IWMI
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www.iwmi.orgWater for a food-secure world
IWMI: A multi-disciplinary approach
5Remote sensing/
spatialanalysts
22Economists and
agriculturaleconomists
4Ecologists
8Soil scientists
andpedologists
23Social
scientists and geographers
14Irrigation andagriculturalengineers
31Specialists in
ground/surfacewater
Inter-disciplinaryapproach
5Water quality
and healthspecialists
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IWMI Offices worldwide
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Intensify agricultural productivity sustainably
Manage risk and increase resilience
Benefit from functioning ecosystems
Enhance efficient resource use and
re-use
Promote gender and social equity
Maximise shared benefits across
sectors and borders
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VISIONA world in which agriculture thrives within vibrant ecosystems, where communities have higher incomes, improved food security and the ability to continuously improve their lives
MISSIONInforming the development of policies, institutions and investments toward sustaining ecosystems and their services as a prerequisite for sustainable and resilient agricultural intensification and improved livelihoods
WATER LAND AND ECOSYSTEM RESEARCH PROGRAM
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1. Intensifying agricultural productivity sustainably
Photo: Hamish John Appleby/IWMI
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0
5000
10000
15000
20000
25000
30000
35000
40000
45000
Canal irrigated area Tank irrigated area Groundwater irrigated area
Irrig
ated
are
a in
100
0 ha
Canal
Tanks
Pressure on the groundwater resource will continue
Source: Mukherji et al. 2013.
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Tanzania – from bucket to pump – facilitating entry into the irrigation market
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Technological changes: laser grading for surface irrigation (Pakistan)
Challenge: Inefficient flood irrigation, high pumping costs
Approach: Pilot trials to modify laser levelling equipment for laser grading - locally available technology.
Solutions: Precision surface irrigation for furrow and border strip. Combine with soil moisture sensors
Outcome: An efficient surface irrigation alternative to drip and sprinkler. 11% increase in land productivity (kg/ha) and 12% increase in water productivity (kg/m3)
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Potential to increase water productivity by identifying high performers
Doukalla Irrigation Scheme, Morocco
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
Dec
Dry season
System productivity can be increased from 3-6 tons per hectare to 11-19 tons per hectare, depending on location.
Planning Commission has directed key departments to adopt improved planning, maintenance and management of polders.
Sub-watershed management recommendations taken up by Blue-Gold project and Delta plan sponsored by DGIS.
Wet season
Shrimp Rice + Fish
Integrated solutions, Bangladesh
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What type and level of protection is appropriate?
2. Managing risk and resilience
Photos: dany13 (Flickr) - http://bit.ly/1USfx2X
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2001 2012 2014
Insurance industry - looking for objective indicators for drought and flood policies
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Rethinking storage – buffering floods by aquifer recharge
Underground ‘taming’ of floods for irrigation (UTFI)
Source: Pavelic 2012
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• India has 130,000 GW of installed pumping capacity in electric and diesel tube wells
• Shifting to a solar power source could reduce India’s Greenhouse Gas emissions by up to 6%
• Threat of over-use• Adopt a hybrid approach –
solar irrigation + feed in tariff• Provides a ‘nexus’ solution
Agricultural livelihoods -Energy - Water - Climate
Solar irrigation - the opportunity and the risk
Photo: IWMI
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SOLAR FARMER
Grid Connected Farmers:
• Replace existing pumps with solar
• Offer guaranteed buy back of surplus solar power at an attractive price
Non grid connected farmers:• Form cooperative• Common feed in-point for “pooled power”• Guarantee buy-back• Reduce utility transaction costs
The solution: redesigning the solar mission as a “cash crop” opportunity
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Hyderabad 2003-2014
Pressures of an urbanizing world intensifying
3. Enhancing efficient resource re-use
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0
5
10
15
20
25
30
Dilutedwastewateror polluted
water
Untreatedwastewater
Groundwater Treatedwastewater
River Othersurface
water bodies
Rainfed Irrigationcanal
Opendrainage
Num
ber o
f citi
es
In and around three of four cities in developing and emerging economies, farmers use polluted irrigation water for the
production of high-value crops
Wastewater irrigation is a reality
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New guidelines promoting simple technologies
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Waste to fertilizer – closing the nutrient loop
Co-composting
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Natural basin
CropsHydropower
Industrial Regulation of water balance
Erosion control
Climate regulationSoil
formation
Nutrient cycling
Recreation
CropsHydropower
Industrial Regulation of water balance
Erosion control
Climate regulationSoil
formation
Nutrient cycling
Recreation
Intensively utilized basin
CropsHydropower
Industrial Regulation of water balance
Erosion control
Climate regulationSoil
formation
Nutrient cycling
Recreation
Multifunctional “green” basinProvisioning services
Regulatory services
Cultural services
Supporting services
4. Benefiting from functioning ecosystems
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Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep0.2
2.2
4.2
6.2
8.2
10.2
12.2
14.2
16.2
18.2
Natural flows
Environmental flow requirement
Maintaining natural variability
CropsHydropower
Industrial Regulation of water balance
Erosion control
Climate regulationSoil
formation
Nutrient cycling
Recreation
Multifunctional “green” basin
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Acknowledgements: Meynell, P-J.
Constructed wetlands in reservoirs
Objective:
Increased diversity of habitat
Refuges for fish
Increased productivity
Improved livelihoods
Wet season: reservoir full
Dry season: reservoir drawn-down
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FodderReclaimed land
Roots Extract for pharmaceuticals
Reclaiming saline soils – licorice innovation
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Feminization and ageing of agricultural population 1 million Nepali migrants in 2004 - 97% were male.
World Bank. 2009
26% of Nepalese households are headed by females. 2011 Census
World’s farming population is ageing – average age approaching 60 Trends towards consolidation of land in China, Korea, Malaysia…
5. Promoting gender and social equity
Photo: Jim Holmes / IWMI
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Mapping diverse perspectives
Photo: Liza Debevec / IWMI
Incorporating gendered perspectives on landscapes into physically –based models via participatory 3-D mapping
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6. Maximizing shared benefits across sectors and borders
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Ferghana Valley – adapting to the realities of transboundary basin created in post-Soviet times
• Numerous documents governing water use
• Long history of cooperation – agreements on property rights, water sharing, basin linkages, compensation mechanisms
• Interrupted by establishment of new borders
• Some cooperation continued at watercourse level
• Knowledge base of agreements established as basis for future discussions
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A range of mechanisms
• Allocation: e.g. Percentage allocation rather than absolute volumes• Adaptation: e.g. increasing storage potential – physical ‘buffer’;
linking management of surface and groundwater systems • Formalized communication: e.g. data exchange, notifications,
political consultations – e.g. on drought and flooding• Broadening scope of cooperation – e.g. nexus considerations and
tradeoffs (Central Asia – low flows – increase in coal/gas export
Adapted from Drieschcova, Giodarno, Fischhendler, 2008
Managing variability in transboundary basins
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MANAGING RESOURCE VARIABILITY AND COMPETING USES
Sharing water benefits in the Andes
Institutional innovation to improve how benefits of water are shared up-stream and downstream: Developed Benefit Sharing
Mechanism for Caneta Basin, funded by IFAD and Peru Government.
Inputs and advice into to developing new PES Law in Peru.
Support to implementing BSM in more than 30 locations throughout the Andes.
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Better water management - the business case for the planet
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www.iwmi.org https://wle.cgiar.org/ https://ccafs.cgiar.org/
Photo: Prashanth Vishwanathan / IWMI