Carbon Balance Manag. 2016 May 23;11(1):6. eCollection 2016.
Carbon storage in Ghanaian cocoa ecosystems.
The recent inclusion of the cocoa sector as an option for carbon storage necessitates the need to quantify the C stocks in cocoasystems of Ghana.
Using farmers' fields, the carbon (C) stocks in shaded and unshaded cocoa systems selected from the Eastern (ER) and Western (WR) regions of Ghana were measured. Total ecosystem C (biomass C + soil C to 60 cm depth) ranged from 81.8 to 153.9 Mg C/ha. The bulk (~89 %) of the systems' C stock was stored in the soils. The total C stocks were higher in the WR (137.8 ± 8.6 Mg C/ha) than ER (95.7 ± 8.6 Mg C/ha).
Based on the cocoa cultivation area of 1.45 million hectares, the cocoa sector in Ghana potentially could store 118.6-223.2 Gg C in cocoa systems with cocoa systems aged within 30 years regardless of shade management. Thus, the decision to include the cocoa sector in the national carbon accounting emissions budget of Ghana is warranted.
Carbon stocks; Cocoa ecosystem; Shaded and unshaded cocoa systems