LA DIVERSITÉ VÉGÉTALE DANS UN MILIEU DE TRANSITION ENTRE LES ÉTAGES BIOCLIMATIQUES MÉDITERRANÉENS ARIDE ET SAHARIEN. CAS DU SECTEUR D’OULED DABBEB, TUNISIE
Journal Title: Revue Roumaine de Géographie/Romanian Journal of Geography - Year 2018, Vol 62, Issue 1
Abstract
Vegetable diversity of a transitional environment between the arid and the Sahara bioclimatic stages. Case-study Ouled Dabbeb, Tunisia. The apparent monotony of the sparse steppe vegetation in the area of Ouled Dabbeb in southern Tunisia conceals a wide variety of flora and physiognomy. Based on several fieldcampaigns observations, the statistical analysis of collected data and a detailed phytoecological mapping, this work aims to highlight the influence of microtopography and topoclimates on the distribution of plant communities and on their diversity in the study-area. Indeed, most of the slopes of the pediments strips exposed to the South and South-East are marked by the presence of arid species e.g. Anthyllis sericea, Calligonum comosum, while the slopes facing North and North-East are marked by the presence of dry species e.g. Hammada scoparia, Hammada schmittiana. Therefore, a set of adjustments between climate and soil conditions at local level is at the origin of this fine mosaic of vegetal cover in the Ouled Dabbeb steppe region, where various plant species are coming into contact.
Authors and Affiliations
KHALE ABAZA, ALI HANAFI
Keywords
Related Articles
- EP ID EP358974
- DOI -
- Views 72
- Downloads 0
TYPES OF HYDRIC REGIME IN THE SMALL RIVER BASINS FROM ROMANIA IN TERMS OF ANNUAL AVERAGE FLOW VARIATION
Wanderungen ohne Integrierung? Saisonbedingte polnische Arbeitswanderer in dem heutigen Deutschland
Seit 1989 sind die Einwanderungssysteme in Europa in einer Übergangsphase. Das Merkmal, das am meisten auffällt, ist die neue Ost-West Wanderung aus den Transformationsländern, die sehr häufig eine zeitwe...
Land use in the Danube floodplain and terraces, Giurgiu-Călăraşi sector
FOEHN OVER THE EASTERN CARPATHIANS, CHARACTERISED BY A WESTERN CIRCULATION OF ANTICYCLONIC SHADE. CASE STUDY, 4–6 FEBRUARY, 2011
Elements of space organisation in south Bucovina
Featuring original identity and a degree of coherence, the Bucovinean cultural space is tantamount to a kind of community spiritual fulfillment, unfortunately severed at regional level. We have deemed it useful and neces...