Structure-functional organization of Haloxylon persicum communities of the Repetek biosphere reserve (Eastern Karakum)

In the psammogenic succession of Eastern Karakum Calligonum caput-medusae phytocenosises are changed of Haloxylon persicum communities. 28 microassociations and 18 groups of associations were described in H. persicum formation. Dominant perennial grasses, moss and soil algae: Stipagrostis karelinii - S. pennata - Heliotropium argusioides - S. minor - Jurinea derderioides - Argusia sogdiana - Anisantha tectorum - Carex physodes - Cyanophyta, Chlorophyta - Tortula desertorum form a row of sand overgrowing. Haloxylon persicum - Саrех physodes - Anisantha tectorum - Tortula desertorum cyclic communities are the terminal stage of the psammogenic succession.