BiomesThere are three major ecosystems that are arrayed from north to south- tundra, taiga, and steppe, as well as transition zones like the Forest-Steppe region.Tundra: the treeless zone that lies between the ice cap and the timber line of North America and Eurasia and having a permanently frozen subsoil (permafrost) Taiga: Russian Boreal Forest, largest forest of its kind anywhere in the world Forest-Steppe: transitional belt that lies between the forest and the southern steppe Steppe: dry grasslands Semi-desert: mostly south of Siberia in parts of Central Asian Republics ![]()
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