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Agroforestry Systems

, Volume 93, Issue 5, pp 2009–2025 | Cite as

Structure of cocoa farming systems in West and Central Africa: a review

  • Denis J. SonwaEmail author
  • Stephan F. Weise
  • Goetz Schroth
  • Marc J. J. Janssens
  • Howard-Yana Shapiro
Article

Abstract

Cocoa agroforests are growing in importance with a view to meeting farmers’ livelihood goals as well as ecological services. Following the recognition of cocoa agroforests as being useful for biodiversity conservation and farmers’ livelihoods, there is a growing discourse on the fact that they may also be useful in climate change mitigation and biodiversity conservation. Several companies have expressed their willingness to be “deforestation” certified within the next two decades. In West and Central Africa, cocoa is part of the endeavour to contribute to the REDD+ mechanism. Besides producing cocoa beans, the additional expectations from cocoa agroforests (timber, NWFP, biodiversity conservation, carbon storage, etc…) depend on the trees associated with the cocoa plants. The manner in which associated trees are mixed in the system impacts on the cocoa plants and plants associated with cocoa trees within the agroforestry system thus impact on the products and services produced by these farming systems. Studies are being undertaken to identify the exact composition of these associated trees but very few deal with the manner in which these trees are structurally distributed—vertically and horizontally—within the cocoa agroforest. Understanding the way in which cocoa and non-cocoa trees are distributed within the system would be useful with a view to improving the farm system, thus meeting the needs of several stakeholders. The present study reviews the structure of cocoa orchards and agroforests in West and Central Africa (Cameroon, Nigeria, Ghana and Cote d’Ivoire) with a view to improving the products and services of cocoa landscapes. This review is centred around: (i) density of cocoa, (ii) density of associated plants, (iii) basal area or associated plants, (iv) stratification and space between components, and (v) the life cycle of cocoa plantation components.

Densities of cocoa and associated plants in the field are not always those advised by extension services. The cocoa varieties play an important role in type and intensity of shade of the cocoa farms. In the context of multiple expectations placed on cocoa plantations, the unproductive cocoa trees in the farmer fields can be substituted by more vigorous ones or replaced by useful associated plants (Timber and NWFP). With the growing desire to reproduce some key attributes of local forests while responding to other economic and social needs associated with cocoa farms, the neighbouring/previous forest climax and its related basal area can be considered as a reasonable aim, when managing the cocoa agroforest. The life cycle of each of the plant components needs to be optimized in these spatial–temporal intensification considerations. In the prospect of vertical intensification, there is a need to give more attention to understorey management and the number of strata of the agroforest. In the context of sustainable management, a well-structured cocoa agroforest system needs to take landscape, local, national and global socio-economic and political issues into consideration.

Keywords

Structure of cocoa agroforest Forest biodiversity Cocoa landscape Non-cocoa associated plants Ecological services 

Notes

Acknowledgements

This paper was written with the support of the International Institute of Tropical Agriculture (IITA), the Sustainable Tree Crops Program (STCP, a public private partnership program between USAID, IITA and Chocolate industries) and Mars Inc. We thank Susan Hoefs for her comments on earlier versions of the document. The research undertaken was part of the CGIAR research program on Forests, Trees, and Agroforestry (FTA).

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • Denis J. Sonwa
    • 1
    • 2
    Email author
  • Stephan F. Weise
    • 2
    • 3
  • Goetz Schroth
    • 4
  • Marc J. J. Janssens
    • 5
  • Howard-Yana Shapiro
    • 6
    • 7
    • 8
  1. 1.Center for International Forestry Research (CIFOR)Messa, YaoundéCameroon
  2. 2.Sustainable Tree Crops Program (STCP)International Institute of Tropical Agriculture (IITA)YaoundéCameroon
  3. 3.Bioversity InternationalRomeItaly
  4. 4.SantarémBrazil
  5. 5.Institute of Crop Science and Resource Conservation (INRES: InstitutfürNutzpflanzenwissenschaften und Ressourcenschutz), Unit of Tropical CropsUniversity of BonnBonnGermany
  6. 6.Mars IncorporatedMcLeanUSA
  7. 7.College of Agriculture and Environmental SciencesUniversity of CaliforniaDavisUSA
  8. 8.The World Agroforestry CentreNairobiKenya

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