The Contribution of the Study of the Bordering Dunes Vegetation in the Moulouya Embochure: the Marram Grass (Ammophila arenaria L.) case

The bordering dunes in saidia are coastal habitats of great ecological importance. the most typical plant isammophila arenaria (or marram grass) which plays numerous ecological roles. one of these roles is thefixation of sand. the anatomy and the physiognomy of this plant enable it a perfect adaptation for hydric andsalt stress in these dunes. the marram grass develops on a sandy soil structure. the moisture of this substrateincreases with the depth while the salinity decreases. the intensity of these two factors varies according tothe climatic conditions. in the experimental conditions, a sandy ground with daily watering yields a bettervegetal growth of the marram grass starting from cuttings of rhizomes..