PHYTOCENOSES OF BRACKISH MARSHES OF THE MOUTH OF THE ONEGA RIVER

Abstract

At the mouth of the Onega River, communities of air-water vegetation of the seaside type are formed by the forming brackish marshes. Classification of vegetation was carried out from the position of an ecological and phytocynotic approach, it contains 6 associations with the dominance of plants of the ecological group of gelophytes, in relation to the aquatic environment: Potamogetonetum pectinati, Scirpetum tabaernemotanae, Eleocharitetum uniglumis, Bolboshoenetum maritimi, Bolboshoenetum maritimi ecleocharitosum uniglumis, Phragmitetum australis. The communities of such associations develop on hut-sand soils of marches in conditions of slight salinity. Together, this vegetation forms a special type of biogenic shores, called cable.