Home – Home – Jornals – Flora and Vegetation of Asian Russia 2018 number 3

The article summarizes data on diversity, cenotic features, ecology and distribution of aquatic vegetation of the Lemnetea class in the south-east of West Siberia. 143 complete geobotanical relevés performed in 1995-2017 in Novosibirsk and Kemerovo regions, Altai Territory and Altai Republic were used. The cenotic diversity of the Lemnetea class identified was 11 associations of 3 unions and 1 order of the Braun-Blanquet approach, which is slightly higher than that identified for East Siberia (8 synthaxa of the association rank). Ceratophylletum demersi , Lemno-Utricularietum vulgaris and Stratiotetum aloidis were found in all natural zones - the forest belt of the Altai-Sayan mountain system, the forest-steppe and steppe zones. Lemno-minoris-Spirodeletum polyrhizae and Lemno-minoris-Riccietum fl uitantis were noted only in the fresh waters of the Altai-Sayan mountain system and the Ob region. Salvinio natantis-Spirodeletum polyrhizae , and Utricularietum macrorhizae were found only in the forest-steppe of the Ob region. Communities of Potamogetono-Ceratophylletum submersi association were noted in the forest-steppe and steppe of the plain part of the area surveyed, which is due to the presence of brackish water bodies there.