Preservation of relict refugium in the ecotone zone of the Middle Amur

The paper proposes to give a protected status to the territory located in the upper and middle reaches of the Kur and Urmi rivers (Amur and Khabarovsk administrative regions of the Khabarovsk territory). It is a refugium with macro-and microecotones of different ranks, which is determined by the presence of morphostructures (the Bureinsky ridge in the west, the Kukansky and Dzhaki-Unakhta-Yakbayana ridges in the east, and the Badzhalsky ridge in the north). Elevation changes from 300 to 2000 m, rapid changes in the gradients of continental and oceanic climates, and a variety of rock formations have created conditions for the existence of floral complexes of different origin and ecology: both forest (relict spruce forests with Pentactina), and high-altitude, included in the Red Data books of different ranks (Snowdon rose - Rhodiola rosea), etc.