Журнал Сибирского федерального университета: Серия Биология (Jan 2018)
Ephemeral Wetland Vegetation of the Ob River in the Forest-Steppe Zone of Western Siberia
Abstract
Ephemeral wetland vegetation of the Ob River is defined within the limits of Novosibirsk Region and Altai Territory, Russia. Association Cypero fusci-Limoselletum aquaticae (Oberd. 1957) Korneck 1960 (Eleocharition soloniensis Philippi 1968, Nanocyperetalia Klika 1935, Isoëto-Nanojuncetea) prevails on the Ob River low water banks in the forest-steppe zone. On the Ob River, it is represented by subassociation Cypero fusci-Limoselletum aquaticae riccietosum frostii subass. nov. Communities of Peplido alternifoliae-Alismatetum graminei ass. nov. (Nanocyperion Koch 1926, Nanocyperetalia) develop on dirt roads of the riparian zone high levels in high-water years. The new association diagnostic species are Lindernia procumbens and Scirpus supinus. Subassociation Cypero-Limoselletum scirpetosum lateriflori Taran 1995 is transferred to the Peplido alternifoliae-Alismatetum graminei association as variant Cyperus fuscus. The author’s data defining ephemeral wetland vegetation of the forest-steppe zone of Western Siberia (73 relevés), including subassociation Eleocharito-Caricetum bohemicae gnaphalietosum rossici Taran 1995 dominating on the low water banks of the Biya River lower course, are summed up in the synoptic table
