TAGMI - an interdisciplinary decisions support tool in AWM outscaling for the Volta River basin
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Transcript of TAGMI - an interdisciplinary decisions support tool in AWM outscaling for the Volta River basin
A Partner of
TAGMI: An Interdisciplinary Decisions Support Tool in Agricultural Water Management Outscaling for
the Volta River Basin
Barron, J., Kemp-Benedict, E., Morris. J., de Bruin, A., Wang, G., Fencl, A.
this work is based on the V1 ‘Targeting and scaling out’ project led by SEI in partnership with INERA, University of Ouagadougou, CSIR-SARI
and KNUST
Andes • Ganges • Limpopo • Mekong • Nile • Volta
MAIN MESSAGES
• The TAGMI (Targeting AG water Management Interventions) is an online decision support tool developed for supporting investments and action in smallholder farming in Volta and Limpopo
It includes both biophysical and social economic conditions influencing oustcaling
It integrates multiple sources of expertise and knowledge
It provides a measure of strength of prediction
• TAGMI can guide on geographical location opportunities based on given conditions. However , implementation of action need to be done with ‘best practise in implementation ‘ for successful outcome
Andes • Ganges • Limpopo • Mekong • Nile • Volta
BACKGROUND Volta and Limpopo Basin Stakeholders demand in 2009: “…the question of what AWM intervention can work where and why”
V1-L1 purpose :To develop and evidence a knowledge-based tool to assess and map the likelihood that a given intervention will be successful in given locations, at the basin scale-three technologies, two basins
Andes • Ganges • Limpopo • Mekong • Nile • Volta
APPROACH 1 • Process of consultation : incorporate various sources of
knowledge
• Decide what is relevant AWM technologies, what is ‘success’
Consultation 2012Consultation 2011 Synthesis
Full IrrigationRainfed
Andes • Ganges • Limpopo • Mekong • Nile • Volta
APPROACH 2
• Merge interdisciplinary factors with Bayes approach
• Develop web based interface in open source and accessible data layer
Andes • Ganges • Limpopo • Mekong • Nile • Volta
1.RESULTS: current TAGMI predictionsSWC Small scale irrigation Small reservoirs
Andes • Ganges • Limpopo • Mekong • Nile • Volta
1.RESULTS: current TAGMI predictions
Soil Water Conservation # districts (%)
Cropland (% )Total BF: 2846941ha Total GH: 5102661 ha
Strength of prediction
Burkina Faso
High/Med/Low 51/25/25 61/20/20 Low
Ghana High/Med/Low 45/39/16 48/6/46 Low
Small reservoirs
Burkina Faso High/Med/Low: 50/32/18 47/20/32 Low
Ghana High/Med/Low: 62/15/23 58/36/7 Low
Andes • Ganges • Limpopo • Mekong • Nile • Volta
1.RESULTS: current TAGMI predictionsExample data input and impact
Andes • Ganges • Limpopo • Mekong • Nile • Volta
2. RESULTS: testing TAGMI for small reservoirs
MAPS……. Decision in SR may not be done at HH level;
mainly in 80s
Andes • Ganges • Limpopo • Mekong • Nile • Volta
2. RESULTS: testing TAGMI for Soil water conservation
TAGMI predictions match actual adoption rates for about half of the provinces
Andes • Ganges • Limpopo • Mekong • Nile • Volta
LESSONS• Data on social-human layers are critical, but rarely
available
• High agreement between factors affecting outscaling across technologies, countries and basins
• The importance of Best Practice In Implementation (‘Due diligence’ )to achieve successful outscaling
• There is opportunity for outscaling of SWC , smallholder irrigation and small reservoirs but prediction strength is low
Andes • Ganges • Limpopo • Mekong • Nile • Volta
RECOMMENDATIONS TO POTENTIAL USERS
• Consider carefully weighting of factors contributing for success and the implications on map output
• Opportunities to verify a/o cross check TAGMI prediction
• Improve data especially on human-social domains
• Identify potential geographic spaces only half the story: more effort in design of appropriate implementation
Andes • Ganges • Limpopo • Mekong • Nile • Volta
www.seimapping.org/TAGMI
We thank all contributors: absent colleagues
farmers, boundary partners and participants in consultations and eventsVBDC colleagues, and LBDC and L1 colleagues
funders