Journal
SUSTAINABILITY
Volume 13, Issue 19, Pages -Publisher
MDPI
DOI: 10.3390/su131910945
Keywords
cocoa; Ghana; ecosystem services; production systems; trade-offs; agroforestry
Funding
- Forests, Trees and Agroforestry (FTA) Research Program of the CGIAR [FP 4, FP 5]
- UNEP TEEB (The Economics of Ecosystems and Biodiversity) small-scale funding agreement (SSFA) grant
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The study reveals various trade-offs between agroforestry cocoa systems and high-tech plantation cocoa systems in Ghana. While high-tech systems have higher cocoa yields, agroforestry systems provide the highest total value of all provisioning services. Additionally, agroforestry systems offer greater ecosystem services and are more environmentally friendly compared to high-tech cocoa systems.
Cocoa production is one of the leading causes of deforestation in West Africa. Agroforestry cocoa systems are increasingly promoted as a possible solution to deforestation. This study seeks to understand the trade-offs within agroforestry cocoa in full-sun and high-tech plantation cocoa systems in Ghana. It uses secondary data collected from an extensive literature search. The results established various trade-offs between cocoa yields and other provisioning services derived from the agroforestry services. While the cocoa yields in high-tech systems are almost thrice those in agroforestry systems, the total value of all the provisioning services is highest within the shaded systems. The economic value of per hectarage yield is estimated at USD 8140, USD 5320 and USD 5050 for shaded, full-sun and high-tech systems, respectively. Agroforestry systems also have higher ecosystem services compared to full-sun cocoa and high-tech cocoa systems. The high pesticide use in Ghana's high-tech cocoa systems is also strongly linked to water and soil pollution, as well as adverse effects on human health. The study concludes that different cocoa production systems in Ghana yield different types of ecosystem provision and are associated with externalities such as the effect of pesticides on soils, water and human health, thus there is a need for the careful consideration of the system from policy and practice perspectives.
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