carbon, biodiversity and cocoa farming in ghana professor ken norris amy wade centre for...
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Carbon, biodiversity and cocoa farming in Ghana
Professor Ken NorrisAmy Wade
Centre for Agri-Environmental Research
The University of Reading
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Talk Outline
• Recent work
– Carbon and biodiversity in forest and agro-forestry ecosystems– Land management strategies for cocoa and carbon– The large-scale Carbon value of cocoa farming systems
• Cocoa-carbon possibilities
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Cocoa-biodiversity project
Forest Reserve (Atewa) Traditional, shade cocoa Intensive, unshaded cocoa
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Project details
• Eastern Region
• Integrated data collection– farm productivity and management– biodiversity– soil nutrient status (health)– carbon stores
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Biod
iver
sity
val
ue
Production intensityLow High
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Cocoa-carbon
• Carbon stores in relation to land-use• Land management strategies• The potential large-scale value of cocoa-carbon in Ghana
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Carbon stores and land-use
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Productivity
Forest trees Soil
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Land management strategies
Unshaded cocoa0.58ha
Forest 0.42ha
136Mg C
160Mg C
Shaded cocoa1ha
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Large-scale cocoa-carbon issues
• Carbon stores in forest and cocoa farming systems in Ghana are roughly equivalent• Intensifying cocoa production would reduce the carbon stores in cocoa farming systems by about 50%
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Cocoa-carbon possibilitiesAfforestation/Reforestation1.Restoring shaded cocoa farming systems to former or abandoned cocoa growing areas2.Increasing tree cover in intensive cocoa growing areas
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Cocoa-carbon possibilitiesREDD1.Avoided deforestation caused by conversion to cocoa farming2.Avoided forest degradation caused by the intensification of cocoa farming
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Concluding Remarks• Cocoa and carbon in Ghana are inextricably linked– Cocoa farming systems are an important carbon store– Changes in cocoa farming systems could significantly increase or reduce GHG emissions
• Significant opportunity to develop cocoa-carbon projects in Ghana