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Climate Change Decision Scientist, ICRAF Nairobi
Closing the Gap between Science and Policy for Climate-Smart Agriculture Christine Lamanna Climate Change Decision Scientist, ICRAF Nairobi Todd Rosenstock (ICRAF), Evan Girvetz (CIAT), Caitlin Corner-Dolloff (CIAT), Anthony Kimaro (ICRAF TZ), Mathew Mpanda (ICRAF TZ), Julian Ramirez Villegas (CIAT), Leigh Winoweicki (ICRAF), Peter Läderach (CIAT), and more
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The Challenge for CSA Programs
Many Practices Many Goals Many Contexts Mitigation Adaptation Productivity Of What? Most common crops? Most vulnerable crops? For Whom? Most farmers? Most vulnerable farmers?
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The Importance of Context
Bayala et al. 2012 Pittelkow et al. 2014 Effect on Maize Yield (%) Conservation Agriculture
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Not CSA CSA Many practices/programs/policies can be CSA somewhere
Context Many practices/programs/policies can be CSA somewhere But none are likely CSA everywhere Rosenstock & Lamanna
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Not CSA CSA How do we determine the best-bet practices to scale up?
Context How do we determine the best-bet practices to scale up? Bring together available evidence Understand the context Extrapolate to novel contexts
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What is the Evidence for CSA in Southern Africa?
Key word search ~ 6000 studies 70 Practices x 20 Indicators Abstract/title review Full text review 526 Studies Data extraction ~60,000 data points
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Impact on Productivity
Impact of CSA varies… By Location: Intercropping Agroforestry Tree Mmt. Crop Nutrient Soil Water Postharvest Diet Effect Size Impact on Productivity Tanzania Uganda Due to differences in climate, soil, farming system, etc.
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Climate Change Impacts
Maize Beans Change in production 2050 vs under RCP 8.5 Ramirez & Thornton 2015
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Prioritizing CSA in Tanzania by Outcome
Impact of CSA varies… By Outcome: Prioritizing CSA in Tanzania by Outcome Effect Size Resilience Indicators Only Resilience & Productivity Equal Productivity Indicators Only
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CSA for Maize in Tanzania
Likelihood Yield decrease increase Likelihood Yield certain uncertain Yield (t/ha) Lamanna et al. in prep
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Risk vs. Reward of CSA High Reward, High Risk High Reward, Low Risk
Low Reward, High Risk Low Reward, Low Risk Lamanna et al. in prep
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Impact vs. Scale for CSA Are there any “magic bullets”?
Lamanna et al. in prep
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Closing the Gap What is the CONTEXT? What are the PRIORITIES?
What are the OPTIONS?
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A BBN for Water Use Technologies
Distance to Market Physical Capital Land Tenure % HH w/ Tenure Social Capital %HHs w/ Livestock Livestock Density Farm & Physical Intervention & Social Farmer Support % HH w/ Extension Farming System Compatibility %HHs w/ Coffee Highland Focus Intervention Capital Complexity %HHs w/ Maize Cereal Focus Cropping System Start up costs Biophysical Factors Suitability Social Factors %HHs w/ Paddy Lowland Focus Literacy Rates % pop illiterate Human Capital Slope Terrain Soil Resources Labour Avail. N/A SOC Soil Fertility Natural Capital Human & Financial Poverty % pop in lowest quartile Financial Capital Precipitation Surface Water Water Resources Access to Credit N/A Depth to Groundwater Ground Water
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A BBN for Water Use Technologies
Representation of CSA option suitability that accounts for local context and knowledge, stakeholder preferences, and uncertainty Lamanna et al. in prep
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The Challenge for CSA Programs
Many Practices Many Goals Many Contexts Mitigation Adaptation Productivity Of What? Most common crops? Most vulnerable crops? For Whom? Most farmers? Most vulnerable farmers?
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There are likely no magic bullets!
Not CSA CSA Context Prioritization is key to achieving CSA goals: What outcomes are most important? For whom? And where? Consider uncertainties Bring together local stakeholders + relevant data Rosenstock & Lamanna
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Priorities Matter to CSA Programs
Equal Adaptation & Productivity Adaptation Only Productivity Only Maize Yield Only Maize Yield considering adoption rates Green Manure Organic Fertilizer Inorganic Fertilizer Mulching Water Harvesting Intercropping Reduced Tillage Agroforestry Pruning Crop Residue Zai Pits Improved Variety Crop Rotation
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CSA Prioritization Framework Filters for selecting CSA investment portfolios
*Analysis of context variables Long list of CSA practices *Ex-ante assessment based on CSA indicators *Stakeholder workshop Ranked short list of priorities *Economic analysis – assess costs and benefits Ranked short list based on CBA *Integrated analysis of opportunities & constraints * Stakeholder workshop CSA investment portfolios Our team applied a set of filters on CSA practices linearly to go from a long list of CSA practices to investment portfolios. You can also do these steps by themselves or in other orders We first assess the list of CSA practices that match with a given biophysical and socio-economic context This leaves you with a long list of CSA practices that apply in an area or production system We then used CSA indicators to evaluate the practices and through a stakeholder workshop identifies best-bet options This short list of options was then evaluated using economic analyses to see costs and benefits In the final stage phase we conducted an integrated analysis looking at the indicators assessments, economic analysis, and barriers and opportunities to establish CSA investment portfolios with user groups. This is very much an action research methodology, intended to link with existing planning processes And have been piloted in Colombia, Guatemala, Mali, and now in Vietnam CIAT/CCAFS team: Ana Maria Loboguerrero, Andy Jarvis, Miguel Lizarazo, Andreea Nowak, Nadine Andrieu, Fanny Howland, Osana Bonilla, Deissy Martinez
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CSA-Plan Situation Analysis Targeting & Prioritizing Programing Design
Vulnerability & Impacts + Readiness Stocktaking for CSA Action Situation Analysis Risks and Enabling Conditions CSA Investment Portfolios Targeting & Prioritizing Practices, Programs and Policies Trade-offs & Value for Money Engagement Capacity development Programing Design Guidelines & Implementation Taking CSA to Scale Knowledge into Action BRUCE Evidence Based Results Framework Learning from Experience Monitoring and Evaluation Across Scales and Systems
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For more information contact:
Todd Rosenstock Environmental Scientist World Agroforestry Centre (ICRAF) Nairobi, Kenya Christine Lamanna Climate Change Scientist World Agroforestry Centre (ICRAF) Nairobi, Kenya Todd Rosenstock (ICRAF), Christine Lamanna (ICRAF), Evan Girvetz (CIAT), Caitlin Corner-Dolloff (CIAT) and colleagues
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