Contribution To The Study Of Flora And Vegetation Inongo Peat Bogs In The Concession Area Wildlife Works Carbon/Era-Congo In The Democratic Republic Of Congo
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Abstract
A floristic, phytogeographical and phytosociological study of the vegetation in peatland areas was carried out between 2023 and 2024 in the Wildlife Works Carbon/Era-Congo concession at Inongo in the DRC. Direct observation, floristic inventory and field and laboratory identification methods were used. The concession covers an area of 301,100 hectares, lying between 17° and 18°20' East longitude and between 1° and 2° South latitude. All the species recorded belong to 90 genera and 46 families. Phytosociological surveys were carried out in two vegetation types: mature forests on hydromorphic soils and periodically flooded secondary forests. No species endemic to the region was found among the 121 species of the florarium studied. This study shows that the majority of species are dicotyledons or Magnoliopsida with 93.47% and 15.21% of Liliopsida, which together form the large representative group of Magnoliophyta (Angiospermae). Pteridophyta account for 6.52%, and Gymnospermae (Pinophyta) are completely absent. Most of the species are found in marshy areas, but a few (species) of them are transfuges from terra firma soils. These include Syzygium guineense, Bridelia ferruginea, Pterocarpus angolensis, Vitex madiensis, etc.
Key words: Era-Congo, peatland, flora, phytosociology, phytogeographic spectra.
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