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Trees diversity in the Nsork rain forest (Rio Muni, Equatorial Guinea)

par Senterre, Bruno ;Lejoly, Jean
Référence Acta botanica gallica, 148, 3, page (227-235)
Publication Publié, 2001

Article révisé par les pairs

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Résumé :

The Nsork rain forest is located at 150 km east of Bata (1° 14' N, 11° 01' E), in the continental region of Equatorial Guinea. Within the 6.7 km of transects, trees with DBH ≥ 30 cm were inventoried on 50 m wide (33.5 ha) and those with DBH ≥ 10 cm on 8 sections of 160 × 10 m (1.28 ha). The main emergents (366 individuals with DBH ≥ 70 cm) are: Aucoumea klaineana (3.1 stems/ha), Scyphocephalium mannii (1), Engomegoma gordonii (0.6), Coula edulis (0.5)... Among the DBH ≥ 30 cm (3886 individuals), the more abundant species are three Burseraceae: Santiria trimera (14 stems/ha), Aucoumea klaineana (9) and Dacryodes macrophylla (9). The biodiversity assessment showed that this forest is very important for the conservation, moreover it is characterised by two species identified for the first time in Equatorial Guinea: Engomegoma gordonii (Olacaceae) and Stachyothyrsus staudtii (Caesalpiniaceae).