Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : PLANT LIFE IN WADI ARABA AREA, EASTERN DESERT

Auteur : FADL, MOHAMED AHMED.

Etablissement de soutenance : Beni-Suef University

Grade : Master of science (MS) in Botany 1999

Résumé partiel
The thesis deals with the plant life in Wadi Araba area which belongs to the Galala Desert ”Dg” and the Red Sea coast ”R” phytogeographical territories (El-Hadidi, 1993d). The study area includes the main bed of Wadi Araba and some of its important tributaries in ( Wadi Abu-Khodirate, Wadi Askhar&Wadi Irkase) North and South Galalas. A total of 127 species belonging to 97 genera and 36 families of seed plants were recorded in the study area. Gymnosperms are represented by one species viz. Ephedra alata. Among Angiosperms, the Dicotyledons are represented by 113 species belonging to 84 genera and 31 families. Fagonia is the largest genus represented by six species, followed by Launaea represented by five species, while Astragalus is represented by four species. Genera represented by three species each are : Atriplex, Cleome, Erodium, Zygophylhim and Plantago. Genera represented by two species each are : Tribulus, Euphorbia, Helianthemum, Deverra, Hcliotropium, Pulicaria and Artemisia. Monocotyledons are represented by 13 species belonging to 13 genera and four families. The larger families in the study area are : Compositae (20 species), Leguminosae (12 species), Gramineae (11 species), Chenopodiaceae (9 species), Zygophyllaceae (9 species), Cruciferae (7 species) and Boraginaceae (7 species). Life-forms of the recorded species comprise : 10 phanerophytes, 33 chamaephytes, 32 hemicryptophytes, five hemicryptophytes and/or therophytes, seven geophytes, 39 therophytes and one parasite species. Only 30 species were recorded from the main bed of Wadi Araba, 34 species were recored from the Galala sectors of the study area (13 species in the North Galala, 11 species in the South Galala and 10 species in both sectors). Another 34 species were recorded from the three sectos of the study area. A total number of 76 species were in the South Galala sector which is higher than that recorded in the North Galala sector (65 species). So the flora of the main bed of Wadi Araba is more influnced by South Galala than to North Galala.

Présentation étendue (EULC)