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Dr David C. Smith & Dr Kevon Rhiney, University of the West Indies. Potential Adaptations to Climate Change for Island farmers. Likely Effects of Climate Change for SIDS. Changed Rainfall patterns Extended Drought Heavy rainfall and floods
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Dr David C. Smith & Dr Kevon Rhiney, University of the West Indies Potential Adaptations to Climate Change for Island farmers
Likely Effects of Climate Change for SIDS • Changed Rainfall patterns • Extended Drought • Heavy rainfall and floods • Changed patterns of severe weather particularly cyclones • Caribbean: Stronger, Fewer, Wetter • Sea Level Rise • Increased Salinity of groundwater, soils and coastal areas, floods.
Likely Impacts: Caribbean • Significant losses (7-12%) under climate change scenarios for sugarcane, banana, cassava, yam, sweet potato & tomato by 2050 (ECLAC 2013) • 33% loss for banana/plantain, 28% for tomato • Rhiney (2013) indicates that in Jamaica the zones suitable for growing many crops will change and be reduced in extent by 2050 • Farmers he interviewed indicated they saw less rain and longer droughts
Adaptation Strategies • Water Management and Efficiency • Harvesting and collection • On farm use, e.g. drip irrigation, solar pumps • Resistant Varieties & Biodiversity of ag species • Drought • Salinity • Cultural options • Intensive vs. extensive, high tunnel houses, crop diversity • Organic Farming • Post harvest care & management
ECLAC’s 10 options for CC Adaptation • Food storage • Water saving irrigation systems • Water Conservation rooftop collection • Holistic water management plans • Early warning systems and Disaster management plans • Improve soil conservation • On-farm water storage • Develop and use drought resistant crop varieties • Mainstream • Use protected agricultural structures
Water Harvesting (GWP) • Impact of Hurricane Ivan was reduced where rainwater harvesting was established (Peters 2010) • GWP/CEHI use a system with “first flush” diversion • Communities in T&T and demos in 3 other countries • http://www.cehi.org.lc/Rain/Rainwater%20Harvesting%20Toolbox/index.htm • www.gwp-caribbean.org
Solar water pumping system Source: Simpson 2012
High Tunnel Houses Photos from GEF Small Grants Programme Jamaica http://sgp.undp.org/index.php?option=com_sgpprojects&view=projectdetail&id=9620&Itemid=205
Requirements / Next steps • Data need to inform decisions • Weather and climate • Economic • Cultural and Social • Producing data to model the effects of CC on various crops & testing varieties in the field for adaptability and resilience (Rhiney 2013) • Education on water management options e.g. RWH
Useful Links • Caribbean Climate Online Risk & Adaptation Tool http://ccoral.caribbeanclimate.bz/ • Global Water Partnership Caribbean & Toolbox www.gwp-caribbean.org • http://www.cehi.org.lc/Rain/Rainwater%20Harvesting%20Toolbox/index.htm • ECLAC 2013 study http://www.eclac.org/portofspain/noticias/documentosdetrabajo/5/49705/Agriculture.pdf
References • Hutchinson, S. et.al, (2013). An assessment of the economic and social impacts of climate change on the agriculture sector in the Caribbean. UN ECLAC 87pp. • Peters, E.J. (2010) Impact of Hurricane Ivan on Grenada water supply Proceedings of the ICE - Water Management, 163, pp57 –64. • Rhiney K., Campbell, D., & Barker, D. (2013) Promoting Marketing Competitiveness & Adaption to Climate Change among Smallholder Farmers in Jamaica. ACDI/VOCA, Kingston, Jamaica. • Williams, N. & Thomas, K. (2012) Sustainable Water Resources in the Caribbean: Prospects and Challenges Water Resources Impact 14 5 pp19-21