Where does tundra replace taiga in the Yenisey River basin?

In the Yenisey River basin, the taiga—a marshy, primarily coniferous forest—is superseded by tundra in the far north of the basin.12

The transition occurs as the landscape shifts from the forested regions that cover most of the basin to the marshy plains of the north, which are characterized by mosses and other cold-tolerant vegetation. This change is influenced by the region's subarctic climate, where the northern portion experiences cold seasons lasting from late September to mid-June and average July temperatures ranging only between 46 and 54 °F (8 to 12 °C).13