Floristic diversity and structure of understory in semi-deciduous forests in Cameroon
Paper Details
Floristic diversity and structure of understory in semi-deciduous forests in Cameroon
Abstract
To date, few studies on the flora’s understory of the semi-deciduous forests of the Congo Basin have been carried out. The aim of this study done in the semi-deciduous forests of the Eastern Region of Cameroon was to characterize the diversity of understory trees (diameter spanning tree: 1.0-9.9cm). The sampling design was those of square plots of 20 x 20m for inventory data collection of understory trees for the diameters between [5-10cm] and those of 10 x 10m for the diameters between [1-5cm]. The parameters collected were the scientific/local/vernacular name, the diameter and height of each species of understory. Diversity indices and structure parameters of understory stratum were calculated (abundance and basal area). The results showed that species richness of study area was estimated at 186 species belonging to 93 genera and 38 families. The Shannon index (4.44) showed a rich diversity of the understory in semi-deciduous forests. In addition, this study identified 27 species as characteristic/exclusive to the understory among which Myrianthus preussii and Rinorea caudata were threatened. The number of stems and basal area of understory trees stratum were 5075 stems.ha-1 and 3.41m².ha-1. Abundance decreases with increasing of diameter and height classes. This study is a contribution to the knowledge of the floristic diversity of the understory of semi-deciduous tropical forests.
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Amandine Flore Yonkeu Ntonmen, Louis Zapfack, Djomo Cédric Chimi, Banoho Louis-Paul Roger Kabelong, Temfack Ingrid Tsopmejio, Barnabas Nfornkah Neba, Arsel D’Estaing Nanfack, Tagnang Nadège Madountsap, Guylene Ngoukwa, Kpoumie Hubert Mounmemi, Votio Mireil Tchoupou, Nono Carine Temegne, Mbobda Roger Bruno Tabue (2020), Floristic diversity and structure of understory in semi-deciduous forests in Cameroon; JBES, V16, N2, February, P103-110
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