加纳可可生态系统中的碳储存

Carbon storage in Ghanaian cocoa ecosystems.

作者信息

Mohammed Askia M, Robinson James S, Midmore David, Verhoef Anne

机构信息

CSIR-Savanna Agricultural Research Institute, Nyankpala, PO Box 52, Tamale, Ghana.

School of Archaeology, Geography and Environmental Science, University of Reading, Reading, UK.

出版信息

Carbon Balance Manag. 2016 May 23;11(1):6. doi: 10.1186/s13021-016-0045-x. eCollection 2016 Dec.

DOI:10.1186/s13021-016-0045-x

PMID:27340428

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4877416/

Abstract

BACKGROUND

The recent inclusion of the cocoa sector as an option for carbon storage necessitates the need to quantify the C stocks in cocoa systems of Ghana.

RESULTS

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).

CONCLUSION

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.

摘要

背景

最近可可产业被纳入碳储存选项，因此有必要对加纳可可系统中的碳储量进行量化。

结果

利用农户农田，对从加纳东部（ER）和西部（WR）地区选取的遮荫和非遮荫可可系统中的碳（C）储量进行了测量。生态系统总碳（生物量碳 + 60厘米深度土壤碳）范围为81.8至153.9 Mg C/公顷。系统碳储量的大部分（约89%）储存在土壤中。WR地区（137.8 ± 8.6 Mg C/公顷）的总碳储量高于ER地区（95.7 ± 8.6 Mg C/公顷）。