Vegetation of sedge fens in the north of European Russia (taiga zone)

摘要

Problems of classification of mire vegetation of the Russian North are discussed. According to floristic classification, seven associations included into the alliance Magnocaricion, order Magnocaricetalia, class Phragmiti - Magnocaricetea, two associations included into the alliance Caricion davallianae and four associations of the alliance Caricion nigrae included into class Scheuchzerio-Caricetea nigrae are recognized. The comparison of sedge fens in the Russian North and North-West regions shows a marked difference in several characteristics. This difference is discussed in detail.