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Assessment of Tree Diversity and Abundance in Rashad Natural Reserved Forest, South Kordofan, Sudan

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Document pages: 10 pages

Abstract: This study aims to estimate the tree diversity status of Rashad ForestReserves in the Rashad locality of the South Kordofan State of Sudan. For datacollection, eight sample plots (20 × 20 m) were taken randomly, andparameters were determined: trees speciesdiversity, composition, relative density, dominance, important value index, andspecies richness in the Rashad forest reserve. The results show that a total of237 and 56 tree species, including 22 families, have been identified in thestudy area. Fabaceae family and species numbers have the highest number of 13species in 8 genera, followed by Combretaceae with 8 species belonging to 3different genera, Malvaceae with 5 species belonging to 4 different genera,Apocynaceae with 3 species belonging to 3 different genera. The Arecaceae,Burseraceae, Capparaceae, Euphorbiaceae, Meliaceae, and Rubiaceae families eachhad two species, and all the other 11 families had one species each. Among the56 different tree species found within the reserve. The results also indicatedthat Tamarindus indica L. and Ziziphus spina-christi (L.) Desf. had the highest relative density and dominance of 4.64 and 11 respectively. Adansonia digitata L., Grewia villosa Willd, Vepris nobilis (Delile) Mziray had density anddominance of 4.80 and 9 . Followed by Anogeissus leiocarpa (DC.) Guill. & Perr, Adansoniadigitata L., Catunaregam nilotica (Stapf) Tirveng. (Syn: Xeromphis nilotica (Stapf) Keay, Vangueria madagascariensis J. F. Gmel. with 3.38 and 8 ,respectively. Eleven species recorded the least relative dominance of0.42 . Shannon-Weiner diversity index (H’) value stood at 3.82. And asdiversity indices varied with location depending on the species availablewithin an ecological zone, Rashad forestreserve is blessed with a moderate diversity index.

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