Food Security and food production systems
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Transcript of Food Security and food production systems
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Xie Liyong [email protected]
2015-08-18 Bangkok
Food Security and Food Production Systems Facing Climate Change
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Climate Change 2014: Impacts, Adaptation and Vulnerability, the Working Group II Contribution to the IPCC AR5 was launched at Yokohama, Japan in March 31, 2014
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The report evaluates how patterns of risk and potential benefits are shifting due to climate change, and considers how impacts and risks related to climate change can be reduced and managed through adaptation and mitigation
About WGII AR5 …
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About Food …
The effects of climate change on crops, animals and fishery are evident in most regions of the world, and negative impacts have been more common than positive ones
The effects act on not only production process, but also non-production elements, such as food access, utilization and price stability
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What happened? Negative impacts on crop yields have been more com
mon than positive• Negative effect on cereal yields • Current markets is sensitive to climate extremes
CO2 has a stimulatory effect and O3 has a damaging effect on crop yields
• The interactions between CO2 and O3, water, and nitro
gen are nonlinear
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Climate change affected the abundance and distribution of harvested aquatic species and aquaculture production
• Negative impacts on nutrition and food security for some tropical developing countries
All aspects of food security are affected, including food access, utilization, and price stability
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Enlightment
The impacts of climate change on food has been occurred
•YES or NO (X)•TAKE ACTION (V)
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What will happen?
Crop production will consistently and negatively affected in low-latitude countries
Climate change will increase inter-annual variability of crop yields
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Redistribution of marine fisheries catch potential towards higher latitudes poses risk of reduced supplies, income, and employment in tropical countries, with potential implications for food security
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Enlightment
The risk of climate change in the future is exiting, its intensity depend on human activity
•FACING to FACT (V)•OSTRICH MENTALITY (X)
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Agronomic adaptation improves yields by the equivalent of 15-18% of current yields
Adaptation benefits are greater for crops in temperate than tropical, wheat-and rice-based systems more adaptable than those of maize
Adaptation in fisheries, aquaculture and livestock production will minimize negative impacts
Any opportunities?
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Take action more early, more less budget•WAIT and SEE (X)•ACTION PROMPTLY(V)
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Discussion Researches on non-production elements, such as food pr
ocessing, distribution, access, and consumption need to be improved
Comprehensive researches should be strengthened, including intergrated responses of crops to CO2, O3, T, water a
nd weeds Adaptation studies are not sufficient, more observational
evidence is needed
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Working togrther