Impact of Climate Change on the Floristic Cortege to Globularia Alypum in the Region of Tlemcen

Abstract

This study is focused on the impact of climate change on the procession of floristic Globularia alypum L.qui Is well presented in the rocky areas. The impact of the drought on the plant formations is reflected by the desertification of the massive pre-forest, the extension of situations in desert areas of bioclimatic limits is based on the changes and thermal water. Under this constant pressure, forests tend to be transformed into matorral. These are sparse and destroyed in their turn to yield to the thorny species and/or toxic. On the whole of the Monts of Tlemcen, it is found that the degradation of Pistacio-Rhamnetalia Alaterni promotes the installation of matorrals pertaining to the class of Ononido-Rosmarinetea or Cisto-Lavanduletea depending on the nature of the substrate. The degradation of the formations to Cisto-Lavanduletea and Ononido-Rosmarinetea cause a change in the procession and floristic has their towers are replaced by other formations more adapted to these environments generally refer to the class of Thero-Brachypodietea which are generally species therophytiques has rapid growth.