This paper focuses on the impact of anthropogenic factors on the floristic diversity of Kimbrila and Kanhasso classified forests in the northwest of Côte d’Ivoire. To this end, a botanical study based on a surface and itinerant inventory was carried out in each forest formation. Thus, 25 rectangular plots of 100 m x 50 m were set up in each forest. The inventory enabled 127 and 104 species to be recorded in the Kimbrila and Kanhasso classified forests respectively. The botanical families best represented were Fabaceae and Euphorbiaceae. The classified forests of Kimbrila and Kahansso have 30.70% and 30.77% of pioneer species respectively. The pioneer indices (PI) determined are 78.07 for the Kimbrila classified forest and 79.12 for the Kahansso classified forest. These disturbance indices reflect a lower degree of disturbance in these two forests. These results show that the two forests studied are relatively well conserved.

This study focuses on the effect of seed weight on the germination and growth of Tieghemella heckelii. For this purpose, seeds were collected from a single tree. The seeds were weighed and classified into three categories according to their weight (heavy, medium, light). Five germination and five seedling growth parameters were then measured from 264 selected seeds. The germination parameters are average time of germination (TeGe), the percentage of germination (PoGe), the rate of germination (ViGe), the length of epicotyl (LoEp) and the length of hypocotyl (LoHy). The growth parameters considered are the height of the plants (TaPl), the number of leaves (NoFe), the number of branches (NoRa), the length of the roots (LoRa) and the diameter at the collar of the plant (DiPl). The best germination percentages were observed with the heavy (THL) and medium seeds (61% and 55.12% respectively). The highest germination rate (3.21 seeds/day) was also obtained with medium seeds (THM) as well as the highest growth parameters while the light seeds (THP) showed the lowest values for both germination and growth parameters. These results suggest that seed-weight-based selection is an important criterion for the regeneration of Tieghemella heckelii.

The Emissions Reduction mechanism due to the Deforestation and the forests Degradation (REDD+) is a crucial challenge against the climate change. This study aims to evaluate the current forest cover of Lamto scientific reserve and its carbon potential sequestration in order to provide source data for the implementation of REDD+ project. The reserve forest cover was given through satellite imagery and cartographic sources. The carbon stock of the reserve was estimated by integrating the data of the forest inventory in an allometric equation. The forest cover analysis shows that this reserve knew a considerable increase of about 16.05 % during the 29 last years. All the forest small islands and galleries forests is today approximately 30% (853.85 ha) of the reserve area. The estimates of Carbon stocks are of 22.21 tC/ha. In addition, this study showed that the classes of the tree’s diameter and the carbon storage capacity of a semi-decidous forest depend on the species Importance Index Value (I.V.I.) present in this area.