SYNTAXONOMY OF TUNDRA AND MEADOV VEGETATION IN THE AREA OF MIDDLE AND LOWER REACHES OF THE ANABAR RIVER (PART OF THE ARCTIC YAKUTIA)
M.Yu. Telyatnikov1, E.I. Troeva2, P.A. Gogoleva3, M.M. Cherosov2, L.A. Pestryakova3, S.A. Prystyazhnyuk1
1Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
arct-alp@rambler.ru
2Institute for Biological Problems of Cryolithozone, SB RAS, 677980, Yakutsk, Lenin str., 41
cherosov@mail.ru
3North-Eastern Federal University named after M.K. Amosov, 677000, Yakutsk, Belinsky str., 58
sedum@mail.ru
Keywords: ðàñòèòåëüíîñòü, ñèíòàêñîíîìèÿ, íèâàëüíûå è êðèîôèòíûå ëóãà, òóíäðà, ðåêà Àíàáàð, ßêóòèÿ, Àðêòèêà, vegetation, syntaxonomy, nival and cryophyte meadows, tundra, River Anabar, Yakutia, Arctic
Abstract
The vegetation of the tundras and meadows of middle and lower reaches of the Anabar River represented by 4 classes, 8 associations and 3 subassociations of ecological-fl oristic classification. Seven associations and all subassociation described for the first time. A wide variety and large areas are occupied by the association of class Loiseleurio–Vac cinietea . Communities are part of polygonal tundra-bogs complexes, which are typical for flat watersheds (associations: Carici concoloris–Hylocomietum splendentis ass. nova hoc loco, ass. Pedicularido oederi–Aulacomnietum turgidi ass. nova hoc loco). Communities also occupy gentle slopes of the watershed hills (ass. Alectorio nigricantis–Diapen sietum obovatae ass. nova hoc loco). Less diverse are snow meadows ( Eutremo edwardsii–Sanionietum uncinatae ass. nova hoc loco and Saxifrago tenuis–Salicetum polaris ass. nova hoc loco) and dryas tundras (ass. Rhytidio rugosi–Dry adetum punctatae Matveyeva 1998 è ass. Rhodiolo roseae–Astragaletum alpini ass. nova hoc loco). Described a new alliance Carici concoloris–Aulacomnion turgidi. We put it in the class Loiseleurio–Vaccinietea . Communities of this alliance are stages of formation of the moss tundras from grassy bogs as a result of a cryogenic swelling of soil.
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