The aim of this study is to contribute to the knowledge of certain medicinal plants and their traditional uses on sexual weaknesses in the town of Kenge in the Democratic Republic of Congo. A survey was carried out among 56 traditional practitioners and sellers of aphrodisiac products, sampled using the «snowball» method. The ethnobotanical data collected, supplemented by ecological information, enabled us to identify 27 plant species, divided into 18 families and 14 botanical orders. The results show that the most commonly used species belong to the Fabaceae (14.8%), Amaranthaceae and Zingiberaceae (11.1%), Apocynaceae and Euphorbiaceae (7.4%) families, in the Fabales, Malpighiales and Zingiberales orders respectively. Among the organs most frequently used to treat sexual weaknesses, roots are cited in first place with 34%, leaves and seeds come in second and third place at 24 and 17% respectively, and the combination of these organs is also sometimes reported. The study showed the importance of traditional medicine, which is justified by the specific diversity of local indigenous species present and the endogenous knowledge of traditional practitioners on the use of these species.

This study was carried out at Ibi on the Batéké Plateau in the Democratic Republic of Congo, with the aim of investigating the vegetation dynamics of a savannah subjected to anthropogenic action and burnt every year (protected savannah), in contrast to a savannah put out to pasture, both separated by a transition zone (ecotone or edge) which has not been regularly burnt like the first. To study vegetation dynamics, 30 floristic inventory plots were set up, with 10 plots per savanna type. The sampling plan for our data collection was designed in two periods, in April 2022 during the rainy season and in July of the same year during the dry season. A total of 144 plant species, divided into 23 genera and 40 families, were inventoried. Of the three experimental zones, the edge had the highest biodiversity, with 73 species (50.3%). The protected savannah totaled 36 species, representing 24.8%, compared with 35 species (24.1%) in the protected savannah. It should be noted that the control savannah is dominated by herbaceous plants (Poaceae), since it burns every year. On the other hand, the protected savannah and the fringe, separated from the control savannah by the fact that they have been protected from bush fires, have evolved differently. In both areas, shrub and tree strata dominate, with the presence of gallery forest species such as Alchornea cordifolia, Allophylus africanus, Anthocleista schweinfurthii, Chaetocarpus africanus, Millettia laurentii and others. These strata increase biomass storage capacity through the diameter, height and density of shrub stems.

This study was conducted in Democratic Republic of Congo, in the province of Kwango, chiefdom of Pelende Nord in order to inventory the floristic diversity of forest islands. To study the vegetation, 15 transects 5 meters wide and 60 meters long were set up at random, with 5 transects per forest island. The inventoried plant species were identified using the combination of various identification keys, the botanical classification taking into account Angiosperm Phylogeny Group (APG IV). The results obtained reveal 129 plant species divided into 35 families including 48 species with an average of 25.5 ± 14.4 in the first forest island, 39 species with an average of 20 ± 11.4 in the second forest island and 42 species with an average of 21.5±12.3 in the third forest island. The most represented families are those of Rubiaceae with 45.7%, Euphorbiaceae come second with 42.9% and Fabaceae in third position with 28.6%. This floristic richness shows that if these forest islands are well preserved, they can evolve into forest ecosystems by providing the same ecosystem services.

This study is carried out with the aim of collating the local impacts of climate change in the coastal area of ​​Muanda in the DRC. Three pilot villages are selected because of their accessibility and ease of communication. Resource persons are sorted on the basis of level of study. For each village, 25 people are chosen, making a total of 75 for the three villages. Interviews and plenary sessions supplemented information on the local perception of climate change, as well as the vulnerability assessment.To assess the impacts of climate change, climate scenarios at the local (Muanda area) and regional (Africa) scales were evaluated using the Magicc/Scengen 5.3 software over a period of one hundred years, at the beginning of the century, in the middle of the century and towards the end of the century. Only the temperature variable is taken into account. The results revealed that the neighbouring inhabitants locally perceives and interprets the impacts of climate change through sea level rise, coastal erosion, the decline in fish and agricultural products, and drought. The projections also show that the temperature will only increase over time.

This study is carried in Kinshasa, provincial city in Democratic Republic of Congo, with the aim of inventorying the floristic richness of certain protected sites in order to preserve nature. The transect method with a double advantage, that of saving time and considerable cost, made it possible to collect data by direct observation (visual contact with the tree) and to determine the plant species inventoried. The plant species were identified using the combination of various determination keys. The results obtained were then supplemented by information concerning the ecological types, which enabled us to identify 80 genera and 89 plant species divided into 48 families according to the APG IV classification. The most represented families in number of species are those of Rubiaceae and Fabaceae visibly with 8 species or 9% against 7 species or 8%. The most represented species in number of individuals are Markhamia tomentosa (40 feet) or 8.6%, Strychnos variabilis (33 feet) or 6.4%, Oncoba welwitchii (30 feet) or 5.8%, Rhabdophyllum arnoldianum (25 feet) or 4.9%, Allophylus africanus (25 feet) or 4.9%, Hymenocardia ulmoides (21 feet) or 4.1% and Pentaclethra eetveldeana (17 feet) or 3.3%.

Millettia laurentii De Wild. is the high value species most exploited for timber in the Democratic Republic of Congo. For this, the species suffers from natural regeneration deficit to overcome this drawback, this study aims to develop relatively simple and efficient methods of vegetative multiplication of this species: the macrocuting. Four silvicultural techniques have been tested on a plot of a quarter of hectare (n=196). Gathering respectively macrocuting up to 1.50, 1.30, 0.75 and 1 meter above ground. After 12 months of observation, the treatments 1 and 0.75 meter height showed the highest percentage by number of the granulations is 75.5% with a mean of 9.8