Еutrophic shrub willow communities in the middle reaches of the Palyavaam river (the western part of the Chukotka plateau, Northeastern Asia)

The paper characterizes a new association, Pedi­cularo lapponicae—Salicetum lanatae ass. nov., distin­guished by the floristic criteria and referred to the alliance Arcto erytrocarpae-Salicion all. nov. which comprises eutrophic willow shrub communities of Chukotka and Alaska. The association is described fr om the middle reaches of the Palyavaam R., the area located in the fringe, rather dissected part of the Chukotka Plateau. The vegetation of this area is more typical of the southern than of the northern hypoarctic tundras in its general outlook and life-form compo­sition. The Pedicularo lapponicae—Salicetum lanatae communities represent the impoverished and more moistened variants of the eutrophic willow thickets from the eastern part of the Chukotka Peninsula wh ere the Paleozoic carbonate outcrops are present. Commu­nities similar in their floristic composition are probable to be met in the other parts of the Arctic, but the center of their distribution ranges is undoubtedly bound to the montane areas of Beringian Chukotka.

Key words: willow communities, classification, association, Chukotka plateau

Section: Articles

How to cite

Sekretareva N. A. 2003. Eutrophic shrub willow communities in the middle reaches of the Palyavaam river (the western part of the Chukotka plateau, Northeastern Asia) // Vegetation of Russia. N 5. P. 41–49. https://doi.org/10.31111/vegrus/2003.05.41

Received June 16 2003