Inventory of Bonou and Itchèdè forests in south east of Benin
The aim of this research work was to study the structural and ecological characteristics of Bonou and Itchèdè forest reserve (latitudes 6°53’ and 7°00' North and longitudes 2°25’ and 2°38' East), in order to contribute to their sustainable management. Data were collected by means of systematic square sampling (100 m X 100 m) on 0.25 ha square plots. On the whole, we inventoried 11 plots in Bonou and 20 plots in Itchèdè. The dendrological parameters measured were the diameter at 1.3 m above the ground and the total height of the trees. In addition, the regeneration of the species of value was counted in squares plots of 100 m2. The collected data were analyzed using Minitab and SAS, softwares.
The average density of trees was significantly different for a probability level of 5% between the two forests (316 trees / ha in the Bonou’s forest and 171 trees / ha in the Itchèdè’s forest). As for value species (Cola millenii, Dialium guineense, and Afzelia africana) their dendrological parameters showed no significant difference between the Itchèdè and Bonou’s forests. The tree-density of individuals (dbh ˃ 10cm) of these species was relatively low (16-254 individuals/ha) whichever is the forest considered, which is an indicator of risk of extinction of these species.
Date range: Jan 8, 1900 - Jan 8, 1900
Date range: Jan 8, 1900 - Jan 9, 1900
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