This work is part of the research and knowledge management component of the Ecosystem-Based Adaptation (EBA) through South-South cooperation project \"Enhancing Capacity, Knowledge and Technology Support for Developing Climate Resilience of Vulnerable and Developing Countries\", known as EBA SOUTH. It presents the main results of a study carried out on a plantation of several species, carried out in the arid zone of Benichab in Inchiri (Mauritania). To characterize the state of plantations, surveys were undertaken on randomly selected plots. The floristic and dendrometric characteristics of the species encountered were determined. The results show the ability of certain species to settle in hyper-arid conditions and the value of species selection during planting. They constitute a reference state that can be used as a basis for monitoring the dynamics of vegetation in this plantation.