La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Floristic diversity variations according to management types in dry rangelands of Southern Tunisia
Auteurs :	Mouldi Gamoun, Auteur ; Azaiez Ouled Belgacem, Auteur ; Belgacem Hanchi, Auteur ; Mohamed Neffati, Auteur
Type de document :	Article
Dans :	Ecologia Mediterranea (37(2) 2011)
Article en page(s) :	33-44
Résumé :	The evolution of plant diversity according to three levels of pastoral pressure (null, moderate and strong) was studied in the collective rangelands of Dhahars in the south-eastern region of Tataouine (Tunisia). The study was carried out in the saharian zones in rangelands of Gymnocarpos decander, Hammada schmittiana, Stipagrostis pungens, and Anthyllis sericea. Under moderate grazing species diversity is only slightly affected. The study suggested that moderate grazing might be an effective means to maintain the diversity of the Saharan rangelands because overgrazing resulted in deterioration of this vital resource, which dropped more than 3/4.

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