Syntaxonomy of the Numto Nature Park vegetation (northern taiga, Western Siberia): 2. The class Scheuchzerio–Caricetea nigrae Tx. 1937.

Abstract

The syntaxonomic diversity of vegetation belonging to the class Scheuchzerio- Caricetea nigrae Tx. 1937 was revealed in the Numto Nature Park located in the northern taiga subzone of Western Siberia (63°7'–64°20'N 69°44'–71°45'E, Khanty- Mansi Autonomous Area). Based on 420 geobotanical relevés, a phytocoenotic characteristic is provided for 15 associations, 16 subassociations (5 associations and 6 subassociations being described as new), 14 variants, and 1 community type, which are assigned to four alliances belonging to three orders. Furthermore, one association and one subassociation, previously described within the Uppsala School framework have been validated with the rank change. Ordination of the identified syntaxa using t-SNE analysis, supplemented with cluster analysis, was conducted to assess the degree of similarity between individual syntaxa.