Henry Neufeldt - Agricultural technologies for climate change adaptation
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Transcript of Henry Neufeldt - Agricultural technologies for climate change adaptation
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Agricultural Technologies for Adaptation to Climate Change
CTCN webinar13 May 2015
Henry NeufeldtWorld Agroforestry Centre (ICRAF)
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Why do we need agriculture to change?
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Historical and projected GHG emissions
Smith et al in IPCC AR4 GWIII, 2007
38% as N2O from soils
32% as CH4 from ruminant enteric fermentation
12% mainly as N2O and CH4 through biomass burning
11% mainly as CH4 in rice production
7% as N2O and CH4 from manure management
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Climate change: projection of rainfall in Africa
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Major climatic changes directly affecting agriculturea. Rising sea level decreases coastal land. This is problematic because the majority of the world's population resides on our near the coast. Furthermore, the majority of the world's population is located in LDCs in increasingly greater proportions as total world population grows.
b. Shifting rainfall patterns will change the growing locations of various crops. Some regions will be better suited for agriculture, while others will experience decreased yields.
c. Shifting temperature ranges will affect changes in the lengths of growing seasons. Farmers will need to adjust planting and harvesting dates.
http://ecosystems.wcp.muohio.edu/studentresearch/climatechange02/agriculture/agroproject.html
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IPCC AR5 WG2 Chapter 7: Food security and food production systems
Expected impacts of climate change on agriculture
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What will we call the boundaries of Safe(r) operating spaces for the food systems?
Commission on Sustainable Agriculture and Climate Change 2012
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What is climate-smart agriculture (CSA)?“sustainably increases productivity, resilience (adaptation), reduces/removes greenhouse gases (mitigation) while enhancing the achievement of national food security and development goals.”
FAO 2013
Unknown
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Climate-smart agriculture is about…Mitigation: Agriculture, forestry and other land use (AFOLU) as the source of 30% of global GHG emissions. Potential for agriculture to mitigate emissions; emission offsets and biofuels as a potential income source.
Swallow 2012
Adaptation: Developing country agriculture as particularly vulnerable to climate change, and need to focus on vulnerability, resilience and adaptation. Obligation of wealthy countries to finance adaptation.
Productivity: Climate change as one of many sources of pressure on agriculture & priority to sustainably produce more food, feed and fiber to meet the needs of growing populations.
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Climate-smart agriculture
ICRAF
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Examples of climate-smart agriculture
Crop Management
Livestock Management
Soil and Water Management Agroforestry
Integrated Food Energy
Systems Infra-structure
Access to Climate
InformationIntercropping with legumesCrop rotationsNew crop varietiesImproved storage and processingCop diversityValue chain and marketing
Improved feedingRotational grazingFodder cropsGrassland restorationManure treatmentImproved livestock healthAnimal husbandry improvement
Conservation agriculture Contour plantingTerraces, bundsPlanting pitsWater storage Alternate wet/dry riceDams, pits, ridgesIrrigationRehabilitating degraded landscapes
Boundary trees, hedgerowsNitrogen-fixing trees on farmsMultipurpose treesImproved fallow, fertilizer shrubsWoodlotsFruit orchards
BiogasEnergy plantsImproved stoves
Climate proof infrastructure for storageRetrofit rural infrastructure to cope with climate risks (flooding or water shortage)
Use of climate analogues to predict future changesFarmer exchangesLocal expertise in climate science and agricultureIntroduce forecasting and scenario planning
Meinzen-Dick et al 2013
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Agroforestry
Nutrition securityPoverty alleviationNatural resource management
Improved cook-stove
Conservation agriculture
Increased yieldsSoil quality & carbon
Reduced degradation &
erosion
Dietary diversity
Intercropping
Participatory approach
Landscape approaches
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Integrated landscape management
…is based on…
Alignment of sectoral policies and their coordinated implementation Adoption of participatory and people-centred approaches and management structures Adequate governance structures and market environment Improved knowledge management Context specificity
Silvia Silvestri ICRAF
FAO 2013
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Multifunctional landscapes
Integrated food-energy-water-landscape nexus (Hoff 2011) Investing to sustain ecosystem services Creating more with less Accelerating access, integrating the poorest
Global water partnership
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Crop management and agroforestry
ICRAF
Agroforestry Intercropping Crop rotations Fallow management
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Evergreen agriculture with
Faidherbia albida
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Intercropping Intercropping enables producing a greater yield, Lodging-prone plants may be given structural support by their companion
crop, Some plants are used to suppress weeds or provide nutrients, Light sensitive plants may be given shade or protection, Intercropping encourages biodiversity and limits outbreaks of crop pests.
@ IITA @ IITA
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Gliricidia/maize intercropping, Malawi
Gliricidia/maize intercropping system is a promising soil fertility replenishment,
Akinnifesi et al 2006
Maize yield from the unfertilized gliricidia pruning treatment was superior to the yield from sole maize supplemented with a quarter or half the recommended N rate,
Application of gliricidia prunings increased maize yields by three times
@ ICRAF
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Crop rotation
Slows the spread of pests and diseases during the growing season,
Allows more land to be farmed with the same amount of machinery and labour,
Financial risks are more widely distributed over more diverse production of crops and/or livestock.
@ ICRAF
Choice and sequence of rotation crops depends on:
the nature of the soil, the climate and precipitation, crop marketing and economic variables.
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Fallow management practices
Promoting soil water storage, Reducing soil erosion potential, Maintaining soil nutrient availability
Smika 1990
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Soil Management
Zero/conservation or minimum tillage Erosion control through terraces Contour plowing
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Tillage
Conservation tillageZero tillageMinimum tillage
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Erosion control through terrace farming
Terrace farming is a type of farming that is used in hilly areas to create patches of land for farming. The terraces keep the soil in place while allowing excess water to drain through natural gravity.Purpose: Decrease erosion and surface runoff, Support growing crops that require irrigation, e.g. rice.Difference between contour plowing and terrace farming: Contour plowing follows the natural shape of the slope without altering it. Terrace farming alters the shape of the slope to produce flat areas that provide a catchment for water and a solid area for crop growth.
http://efotg.sc.egov.usda.gov/references/public/MN/330mn.pdf Vinod Sankar
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Erosion control through contour farming
Contour farming: Using ridges and furrows formed by tillage, planting and other farming operations to change the direction of runoff from directly downslope to around the hillslope.
Purpose: Reduce sheet and rill erosion. Reduce transport of sediment, other
solids and the contaminants attached to them
Increase water infiltration
Conditions: This practice applies on sloping land where annual crops are grown. For orchards, vineyards and nut crops.
http://efotg.sc.egov.usda.gov/references/public/MN/330mn.pdf
@ http://www.chaipat.or.th/chaipat_old/vetiver/vetiver_3/
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IFES: Integrated Food-Energy Systems IFES refer to farming systems designed to integrate, intensify, and thus increase the
simultaneous production of food and energy, IFES function at various scales and configurations, IFES promote food and energy security, resource efficiency, addressing climate change
and local adaptation.
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Nutrient management Micro-dosing Fertilizer application strategies
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Fertilizer application strategies…depend on:
Timing, Placement, Type of fertilizer
Considerations of nutrient placement:
The type of fertilizer being applied Tillage and crop rotation practices Choice of crop Access to necessary equipment Nutrient mobility in the soil Soil characteristics
https://edis.ifas.ufl.edu/ss451 http://www.ctahr.hawaii.edu/mauisoil/c_placement.aspx
@ East africa Agribusiness
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Micro-dosing
Solution: seed coating, ‘Warrantage’, small packets.
http://www.icrisat.org/impacts/impact-stories/icrisat-is-fertilizer-microdosing.pdf pictures available
Disadvantages: time consuming, laborious, expensive
ICRISAT
Advantage: consistent yield increases
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Water management
Alternative Wetting Drying in Rice Drip Irrigation Water harvesting
Unknown
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Drip irrigation
Definition: an irrigation method that saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil surface or directly onto the root zone. Obstacle: The technology is quite expensiveSolution: Simple and Low-Cost Drip Irrigation System: An alternative approach to raise household farm productivity (IWMI, Ethiopia).
Cheap Drip Irrigation
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Livestock and grasslands management Livestock Feeding Strategies Drought Strategies for Feeding and Managing Dairy Cattle Integration of Fodder Shrubs and Cactus in the Feeding of Small Ruminants Feeding strategies for sustainable cattle production Ruminants and Greenhouse Gases: Sustainable Feeding Strategies Cut-and-Carry Forage Systems
@ FAO
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Cut-and-Carry forage systems based on nitrogen-fixing plants
Advantages Land utilized more efficiently for
production Better per unit production Better control of animals Centralization of animal waste production Addition of “Free” N into system Good community relations
Disadvantages Labor demand Possible adverse effects of feeding High levels of legumes Possible Infectious disease outbreaks
Key Message: In agriculture, there will be an ever-increasing need to maximize production from limited land resources. Cut-and-carry animal production systems show great potential, while the use of nitrogen-fixing forage crops will make those systems more productive and sustainable.
ICRAF
Palmer 1998
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Modeling solutions and information systems
APSIM Climate information systems AFSIS Soil nutrient mapping and precision
agriculture Crop information systems AMIS Flood and Drought Prediction
Models Low Emissions Agriculture Tool
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Climate information systems Flood prediction, Drought prediction, Seasonal predictions
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Africa Soil Information Service (AFSIS) AfSIS is developing continent-wide digital soil maps for sub-Saharan Africa using new types of
soil analysis and statistical methods, and conducting agronomic field trials in selected sentinel sites,
~17.5 million km2 of continental sub-Saharan Africa (SSA), encompassing more than 90% of Africa’s human population living in 42 countries,
A wide range of stakeholders across multiple scales, Key Goals: Innovation, Data, Education, Analysis, Services.
http://africasoils.net/about/who-we-are
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Breeding for climate change
Breeding for heat and drought tolerance
Scuba and aerobic rice System of Rice Intensification (SRI) Drought tolerant maize GM crops
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Nationally Appropriate Mitigation Actions (NAMA)Definition: A set of policies and actions that countries undertake as part of a commitment to reduce greenhouse gas emissions, Different countries, different nationally appropriate action on the basis of equity and in
accordance with common but differentiated responsibilities and respective capabilities, Developing countries will effectively implement national action depends on the effective
implementation of the commitments by developed countries in provision of financial resources and transfer of technology,
The priorities of developing countries are economic and social development and poverty eradication.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357889/ and http://en.wikipedia.org/wiki/Nationally_Appropriate_Mitigation_Action
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Challenges and Enabling Conditions
Multiple demands on natural resourcesFood insecurityInsecure land tenure Short-term vs. long-term benefits Farmer climate coping strategiesFinancial requirements and costs of adapting CSA technologiesRisks management at local, national and international levelsComprehensive governance, from local to internationalAccess to Market and trade regulation Pro-poor CSACapacity developmentNeed for researchScaling upKey messages and recommendations
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Food vs. Fuel
Pastoral Land Use
Biodiversity
Watershed
Competing demands for natural resources
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Constraints: insecure tenure
Economic, Environmental and Social Impacts Unadjud Freehold
Tenure Effect
Net returns to land ($ ha-1 y-1) $126 $288 2.28 Woody crops, woodlots etc (ha km-2) 5.4 25.6 4.7 Hedgerows (km km-2) 5.2 23.6 4.5 Social cost from embedding -$40 $30 $70 Social "tax" -32% +10%
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Constraints: High investment costs
Derpsch et al 2010
Financial benefits of no-till wheat production in northern Kasakhstan
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Thorlakson and Neufeldt, 2012
Enabling environment for adoption of CSA in smallholder agriculture
Provide an enabling legal and political environment Improve market accessibility Involve farmers in the project-planning process Improve access to knowledge and training Introduce more secure tenure Overcome the barriers of high opportunity costs to land Improve access to farm implements and capital
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Innovation and food security
Relationship between innovativeness (number of farming system changes) and household food security (number of food deficit months). Error bars indicate the 95% confidence interval of the mean
Kristjanson et al 2012
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Farmers most interested in reducing food insecurity No long- or medium-term planning possible under food insecure situation Tree planting (and other investments in livelihood improvements) only after basic food
security is guaranteed Food insecurity rose by at least one month (above on average 3 months) during recent
drought and floods Coping strategies lead into ‘poverty trap’ Agroforestry reduced food insecurity by about 1 month
All #s in %
Reduce Quantity,
Quality or # of meals
Comm-unity or family
support
Help from Gov, NGO,
Church
Borrow money
Casual Labor
Sell possess-ions or
livestock
Consume Seeds
Children attend school
less
Lower Nyando
85 30 42 32 28 72 72 38
Middle Nyando
38 23 18 37.5 25 40 61 12.5
Farmer climate coping strategies
Thorlakson and Neufeldt, Agriculture and Food Security 2012, 1:15
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Meinzen-Dick et al 2013
Role of institutions in climate change responses
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Meinzen-Dick et al 2013
Role of state, collective action and market institutions …
Promote inclusivity
Provide information
Enable local level innovation
Encourage investment
Offer insurance
… to enable smallholders, women and resource-poor communities to adopt and benefit from CSA
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Priority Actions: Improve networking and partnership
building for climate adaptation along the value chain by strengthening existing platforms at all levels and explore the role of market incentives in supporting such activities,
Develop new, flexible financial products to support climate-resilient and inclusive agro-value chains through capacity building and innovative public-private partnerships,
Invest in climate-resilient infrastructures such as roads, irrigation systems, storage facilities and telecommunications should remain a top priority to support agro-value chain development and build productive capacities in a changing climate.
CRCV initiative
Value chains: a case of climate-resilient coffee (2)
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Financial requirements and costs of adapting CSA technologies
Public-private partnerships Major part by private sector and farmers Land management schemes and infrastructure through social protection schemes Investment in research
ICRAF
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Insurance
To withstand shocks, encourage innovation and investment
Options: Formal crop insurance (state) Weather index-based (state) Microfinance insurance (private
sector, NGOs) Social groups, Social networks (remittances, access
options) Assets (self-insurance) Public works, safety nets
Examine biases, inclusiveness of each
Meinzen-Dick et al 2013
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Researching, learning, impacting together!https://www.linkedin.com/groups?mostRecent=&trk=&gid=6657402
http://ccsl.wikispaces.com/Sandbox
http://thedata.harvard.edu/dvn/dv/CCAFSbaseline/faces/StudyListingPage.xhtml;jsessionid=efc0985167adbf520e185e5a39b1?mode=1&collectionId=4844
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Need for research
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– Moving from sex disaggregated diagnostic research towards informing, catalyzing and targeting adaptation and mitigation solutions to women
– Finding: Gender norms must be addressed to achieve the SDGs
Gender and inclusion for resilience
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Agricultural mitigation options require a coordinated mix of policy support, private and public sector investment, strengthened research, and capacity building of key stakeholders
Explicitly considering climate change mitigation, adaptation and other benefits from the outset is critical to achieving multiple benefits and reducing tradeoffs
Facilitation of public-private partnerships and stakeholder engagement, including research centers, governments, extension agents, the private sector and NGOs, is critical
Financial incentives (including tax offsets, subsidies, credit) are needed to overcome high investment costs and lag times before benefits accrue
Technologies must be context specific to the region or country where they are introduced
Adaptive management of natural resource governance systems is essential
Lessons learned for policy development and scaling up
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Climate-smart agriculture practices can contribute to food security of resource-poor rural populations while providing important adaptation and mitigation co-benefits if they are adapted to local conditions and national policies, and global food systems are in tune with sustainable development goals.
1Agriculture is understood to consist of crops, livestock, forests, fisheries and aquaculture
Key messages
In order to maximize the synergies between the three pillars (production, adaptation, mitigation) agricultural policies should consider multiple targets from the outset, and research is needed that identifies the relative contributions of different practices to each of the pillars.
Overcoming barriers to adoption of climate-smart agriculture1 for long-term transformation toward sustainable management of resources requires: national agriculture development plans with appropriate institutions at national to local levels; provision of infrastructure; access to information and training; access to capital and insurance; stakeholder participation; and, last but not least, improvement of tenure arrangements.
Investment in improved natural resource management through climate finance can provide essential livelihood (through improved and diversified income, strengthened institutional capacity, reduced climate risk) and global mitigation benefits if high investment risks and low investment returns can be overcome.
1
2
3
4
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Development and climate finance programs need to focus on improving livelihoods and income so that there is incentive for smallholder farmers to invest in climate-smart agriculture.
Combining practices that deliver short-term benefits with those that give longer-term benefits can help reduce opportunity costs and provide greater incentives to invest in better management practices.
National agriculture development plans with appropriate institutions at national to local levels, provision of infrastructure, access to information and training, stakeholder participation and improvement of tenure arrangements are necessary for long-term transformation toward sustainable intensification and management of resources.
ICRAF
Photo
: N
. Pa
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(CIA
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Provide an enabling legal and political environment, Improve market accessibility, Involve farmers in the project-planning process, Improve access to knowledge and training, Introduce more secure tenure, Overcome the barriers of high opportunity costs to land, Improve access to farm implements and capital, Invest in Research.
Recommendations to address CSA constraints
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Thanks for a future
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To learn more
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Adams, R.M. et al., 1998. Effects of global climate change on agriculture: an interpretative review. Climate Research, 11, pp.19–30. Available at: <Go to ISI>://WOS:000078720200003.
Andrews, M. and Hodge, S. Climate Change, a Challenge for Cool Season Grain Legume Crop Production Collective Action & Property Rights for Poverty Reduction: Insights from Africa and Asia. University of Pennsylvania Press.
Ayana, M., Eshetu, F. and Tadele, K. 2005. Simple and Low-Cost Drip Irrigation System: An alternative approach to raise household farm productivity. IWMI workshop paper. Available at: http://publications.iwmi.org/pdf/H039819.pdf
Bouman, B., Peng, S., Castan A., Visperas, R. 2005. Yield and water use of irrigated tropical aerobic rice systems. Agricultural Water Management, Volume 74, Issue 2: 87–105. Available at: http://www.sciencedirect.com/science/article/pii/S0378377404003257
Campos, H., Cooper, M., Habben, J., Edmeades, G. and Schussler, J. 2004. Improving drought tolerance in maize: a view from industry. Field Crops Research. Linking Functional Genomics with Physiology for Global Change Research. Vol. 90, Issue 1: 19–34. Available at: http://www.sciencedirect.com/science/article/pii/S0378429004001571
Dekens, J. and Bagamba, F. 2014. Promoting an Integrated Approach to Climate Adaptation: Lessons from the coffee value chain in Uganda. Climate resilient value chains briefing note series. Available at: http://www.iisd.org/pdf/2014/briefing_note_value_chains.pdf.
FAO 2013. Climate-Smart Agriculture Sourcebook. Available at: http://www.fao.org/docrep/018/i3325e/i3325e.pdf
PUBLICATIONS (1)
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Garnett, T. and Godfray, H. 2012. Sustainable intensification in agriculture. Navigating a course through competing food system priorities. A report on a workshop. Oxford University.
Hall, A. 2004. Breeding for adaptation to drought and heat in cowpea. European Journal of Agronomy. Volume 21, Issue 4: 447–454.
Hao, Z. et al., 2014. Global integrated drought monitoring and prediction system. University of California. Scientific Data 1, Article number: 140001 . Available at: http://www.nature.com/articles/sdata20141.
Hoff, H. 2011. Understanding the Nexus. Background Paper for the Bonn2011 Conference: The Water, Energy and Food Security Nexus. Stockholm Environment Institute, Stockholm.
Islam, K.K. et al., 2012. Economic contribution of participatory agroforestry program to poverty alleviation: A case from Sal forests, Bangladesh. Journal of Forestry Research, 23, pp.323–332.
Kamara, A.. Kureh, I., Menkir A., Kartung, P., Tarfa, B., and Amaza, P. 2006. Participatory on-farm evaluation of the performance of drought-tolerant maize varieties in the Guinea savannas of Nigeria. International Journal of Food, Agriculture and Environment. Vol.4,No 1: 192-196. Available at: http://cat.inist.fr/?aModele=afficheN&cpsidt=17447320
Langford, K. 2014. Farmers need support to diversify in fight against climate change. ICRAF. Available at: http://blog.worldagroforestry.org/index.php/2014/03/15/farmers-need-support-to-diversify-in-fight-against-climate-change/
Linner. B. and Rahuja , N. 2012. A Registry of Nationally Appropriate Mitigation Actions: Goals, Outcomes, and Institutional Requisites. Ambio, 41, pp.56–67.
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Nefzaoui, A., 1996: The intergration of fodder shrubs and cactus in the feeding of small ruminants in the arid zone of North Africa. In:A. W.Speedy, C.Dalibard, and R.Sansoucy (eds.) Livestock Feed Resources Within Integrated Farming Systems. FAO Electronic Conference in Tropical Feeds, pp. 467—483. Food and Agriculture Organization of the United Nation. Rome.
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Ocen, G. 1999. Feeding strategies for sustainable cattle production UNISWA Jnl of Agric. Vol 8: 31-38.
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http://africasoils.net/about/who-we-arehttp://agriinfo.in/default.aspx?page=topic&superid=1&topicid=449http://agritech.tnau.ac.in/gap_gmp_glp/gmp_fertilizer%20use.htmlhttp://blog.worldagroforestry.org/index.php/2014/03/15/farmers-need-support-to-diversify-in-fight-against-climate-change/#sthash.KPDIN3nH.dpufhttp://ccafsclimate.org/download_allsres.htmlhttp://climatetechwiki.org/technology/conservation-tillagehttp://ecocrop.fao.org/ecocrop/srv/en/homehttp://ecosystems.wcp.muohio.edu/studentresearch/climatechange02/agriculture/agroproject.htmlhttp://ecosystems.wcp.muohio.edu/studentresearch/climatechange02/agriculture/images/grnhouse.gifhttp://ecosystems.wcp.muohio.edu/studentresearch/climatechange02/agriculture/agroproject.htmlhttp://en.wikipedia.org/wiki/Nationally_Appropriate_Mitigation_Actionhttp://en.wikipedia.org/wiki/Precision_agriculture#Precision_agriculture_around_the_worldhttp://iipdigital.usembassy.gov/st/english/article/2012/11/20121103138251.html#axzz30AiNpYRKhttp://know.climateofconcern.org/index.php?option=com_content&task=article&id=147http://know.climateofconcern.org/index.php?option=com_content&task=article&id=150http://library.cgiar.org/bitstream/handle/10947/3000/cgiar_brochure_june_7_2012_final.pdf?sequence=1http://library.cgiar.org/handle/10947/3000
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http://worldagroforestry.org/regions/eastern-africa/our-projects/conservation_agriculture_with_treeshttp://www.amis-outlook.org/amis-about/en/http://www.capri.cgiar.org/sourcebook.asp http://www.cgd.ucar.edu/cas/Topics/climinfosystems.htmlhttp://www.fao.org/sd/EIdirect/EIre0078.htmhttp://www.globalweathersystems.com/http://www.icrisat.org/impacts/impact-stories/icrisat-is-fertilizer-microdosing.pdfhttp://www.ictinagriculture.org/content/precision-agriculturehttp://www.jpl.nasa.gov/news/news.php?release=2012-346http://www.nature.com/articles/sdata20141http://www.nature.com/nature/journal/v488/n7412/abs/nature11346.htmlhttp://www.nature.com/sdata/2014/pdf/sdata20141.pdfhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3357889/http://www.worldagroforestry.orghttp://www.worldagroforestry.org/downloads/publications/PDFs/BR11267.PDFhttp://www.worldagroforestry.org/sea/networks/ifm/NText2.htmhttp://www.worldagroforestry.org/sea/networks/ifm/NText2.htmwww.capri.cgiar.org/pdf/brief_land.pdfwww.capri.cgiar.org/pdf/brief_land.pdfwww.slideshare.net/agroforestry (ICRAF)
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http://www.cgiar.org/http://www.worldagroforestry.org/https://www.flickr.com/search?sort=relevance&text=tree%20bud
Illustrations
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Video1. CSA technologies http://www.cgiar.org/consortium-news/feeding-the-world-2014-sustainable-solutions-for-a-global-crisis/2. CSA: triple win1min44 sechttp://www.youtube.com/watch?v=rs-pA1Ee02U3. Landscape approach: 1min03sec http://www.youtube.com/watch?v=xPjSAw1F8eE31 sechttp://www.youtube.com/watch?v=WIq20QUaDIM4. Agroforestry:1min20 sec http://www.youtube.com/watch?v=3SWPxS-yKUo5. Food energy system2 min 30 sechttp://www.youtube.com/watch?v=MGNxRZD4Uxs6. Cheap drip irrigation3min27 sechttp://www.youtube.com/watch?v=MNoL13ptJ6Y7. Feeding the World through Plant Breeding and Genetics1min 30 sechttp://www.youtube.com/watch?v=p9p7vx5O3Xc
Please see a separate file for video options for Web1 on CSA. Install Apple QuickTime