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The study examined the floristic diversity of woody species and their potential sequestration of carbon in reforested sites in sudano-sahelian zone of Cameroon. The experimental design was constituted of two blocks: Gaban and Matchoualta sites. In each block, a transect of 40 000 m2 (1 000 m x 40 m) was established. Four circular plots of 40 m of diameter were set up along the transect, and in each plot, all the woody individuals (dbh ≥ 5 cm) were inventoried. We used Origin 6.0 to perform the statistical analyses. Phytomass, storage and carbon credit of the woody individuals were estimated on the basis of allometric equations. A total of 3 098 woody individuals was inventoried and distributed within 62 species, 46 genera and 26 families. Fifty-six species were recorded in Gaban and fourty-nine species in Matchoualta site. Phytomass and carbon storage were 263.20 t/ha and 131.6 tC/ha for Gaban site, 213.61 t/ha and 106.80 tC/ha for Matchoualta site. The CO2 equivalent amounts were 482.97 CO2eq and 391.97 CO2eq. The total economic values of the two reforested sites were 2 624.82 ε/tCO2eq; 4 112.21 ε/tCO2eq and 87 794 ε/tCO2eq respectively for Clean Development Mechanism price, Voluntary carbon price and REDD+ price. Statistical analyses revealed that carbon stock values varied significantly between the two sites (ANOVA, F = 81.80; P = 0.012). The study provides valuable data useful for better management and monitoring of the two reforested sites with regard to tree carbon storage in mitigation of global warming and climate change.

A Floristic Composition of Woody Species and Potential Carbon Storage in Reforested Sites of Sudano-Sahelian Zone of Cameroon