|
Titre :
|
Evolution of ecological characteristics along a gradient of soil degradation in the South Tunisian rangelands
|
|
Auteurs :
|
Mouldi Gamoun, Auteur ;
Mohamed Chaieb, Auteur ;
Azaiez Ouled Belgacem, Auteur
|
|
Type de document :
|
Article
|
|
Dans :
|
Ecologia Mediterranea (36(2) 2010)
|
|
Article en page(s) :
|
5-16
|
|
Résumé :
|
This study was carried out in the region of Ouled Chehida located in the Tunisian south. It aims at assessing the impact of the exploitation (grazing) on the dynamic of plant cover of various types of rangelands of the region.The variations of the cover rate, the species density, specific diversity as well as the grazing value both in grazed and rested rangelands were observed.The results of this study show that all observed parameters vary enormously from one rangeland type to another according to the degree of disturbance and that the practice of the rest technique seems to be very beneficial for the whole of parameters and this in spite of the high soil and climatic aridity.
|
