The floristic diversity and the carbon stock evaluation in on some peripheries sites of the douala-edea wildlife reserve in Cameroon

The study carried out in three of the 61 villages of the reserve during the period of December 2014 to April 2015 with the objective of evaluating floristic diversity and carbon stock in these three villages. 60 transects, each of 250 m length and 20 m wide, for total area of 30 ha was used to evaluate the carbon stock. The chosen carbon reserve was the epigeneous carbon and the non-destructive method through the allometric equations based on the dendrometric measurements were used. The amount of atmospheric CO2 absorbed by forest was obtained by multiplying carbon stocks by 3.67. The monetary value was obtained by multiplying the quantities of CO2 absorbed by the price of one ton of carbon dioxide (tCO2eq) which is of the order of $ 5.9. The results show that the periphery of the reserve has a total of 10,205 trees belonging to 38 families, 78 genera and 123 species. Analysis of the diversity showed that the reserve is diversified with equidistribution of species between identical facies. The ANOVA test (P˂ 0,05) reveals that carbon stocks sequestered do not vary significantly between the various villages. In this villages, the adult secondary forests (FSA) sequester more carbon (362, 36 T C/ha) than all others types of forest, with a high monetary value of carbon stocks estimated at 3 730 047, 31 FCFA (6700 $).