Natural and anthropogenic causes jointly lead to land degradation eventually desertification, which occurs in arid, semiarid, dry subhumid areas. Furthermore, extended drought periods may cause soil exposure erosion, and, finally, desertification. Several climatic, geological, hydrological, physiographic, biological, as well human factors contribute This paper presents a methodological procedur...

In this paper a survey on the garrigue vegetation dominated by Satureja montana subsp. occurring in Alta Murgia National Park is presented. These communities were compared with those of Ionian Arc ravines. Syntaxonomic, structural, chorological and ecological analyses performed order to achieve proper classification vegetation. A new association here described, Rhamno saxatilis-Saturejetum mont...