Prokopenko S.V., Nesterova N.I.
Botanicheskii zhurnal 2019; 104(10): 1541-1560
The article is devoted to the phenomenon of the presence of Manchurian nemoral floristic complex in the upper zones of the southern part of the Sikhote-Alin Range, where the species boreal floristic complex dominate with participation of arctoalpine and alpine plants. The checklist includes 72 nemoral species, registered above 1000 m a. s. l., this number is about 10% of the nemoral species known for the south of Sikhote-Alin. The data on their upper limits of distribution and phytocenotic confinement in mountain and high mountain belts are given. The analysis of the nemoral floristic complex is carried out. The nemoral species in the upper zones of the Sikhote-Alin Range are relicts of the Holocene climatic optimum. High level of insolation on the steep southern slopes of the middle mountains ensures an increased thermal regime of habitats, contributes preservation of these nemoral species in modern conditions. In our opinion, it is possible to distinguish two variants of altitudinal zonation in the southern part of Sikhote-Alin: variant of shaded slopes (Korean pine-broadleaved forests, taiga forests, alpine tundras) and variant of insolated slopes (oak forests, stone birch forests, alpinotype meadows).
