Russia is not a tundra. Tundra covers a significant strip of the country’s northern coast and Arctic islands, but it accounts for a relatively small fraction of Russia’s total land area. The world’s largest country by territory spans an extraordinary range of landscapes, from subtropical coastlines along the Black Sea to vast boreal forests, grassland steppes, deserts, and mountain ranges. What Russia does have is the largest continuous stretch of low-Arctic tundra on Earth, and beneath much of its northern half lies permafrost, the permanently frozen ground that shapes everything from vegetation to city planning. The confusion between “tundra” and “frozen” is understandable, but the two are not the same thing, and teasing them apart reveals a more complex and interesting geography.
Where Russia’s Tundra Actually Is
Russian tundra runs along the Arctic coastline from the Kola Peninsula in the west, across northern Siberia, and out to the Chukchi Peninsula in the far northeast. It also covers several major Arctic islands, including Novaya Zemlya, Severnaya Zemlya, and Wrangel Island. This band of treeless terrain, defined by permafrost-locked soil, short growing seasons, and mean temperatures too cold to support tree growth, stretches thousands of kilometers in length but is relatively narrow compared to the country’s north-south extent.
Circumpolar mapping of Arctic vegetation shows that Russia holds the largest area of low-Arctic tundra on the planet, dominated by low-shrub tundra communities, while Canada claims more high-Arctic terrain with its barren and prostrate dwarf-shrub types.1Journal of Vegetation Science. The Circumpolar Arctic vegetation map Russian tundra, in other words, is not the most extreme version of Arctic barrenness. It tends to be greener and shrubbier than what you would find at equivalent latitudes in the Canadian Arctic Archipelago, largely because much of it sits in the “low Arctic” climate zone with slightly warmer summers and more precipitation.
Russia’s Other Biomes Dwarf the Tundra
The reason people associate Russia with frozen landscapes is partly a matter of geography and partly a matter of imagination. The taiga, or boreal forest, is by far the dominant biome. It stretches across Russia in a band that is far wider than the tundra strip above it, running from Finland’s border to the Pacific coast. Researchers mapping Russia’s biological diversity have identified roughly 40 groups of forest regional biomes on plains and 22 groups of mountain biomes, totaling around 150 distinct regional biomes across the country.2PubMed Central. A Biological Diversity of Forest Biomes of Russia The taiga alone covers more of Russia’s surface than all other biomes combined.
South of the taiga lie the temperate mixed forests, the forest-steppe, and the open steppe grasslands that extend across southern Siberia and European Russia. Analysis of Landsat imagery in southern Russia found that about 70% of the steppe mapped in 2018 was permanent grassland, with the remaining 30% representing former cropland abandoned largely during the post-Soviet economic upheaval of the 1990s.3Springer Link / Landscape Ecology. Restoring steppe landscapes: patterns, drier and implications in Russia’s steppes These are warm, dry grasslands that look nothing like tundra. Russia also has semi-deserts near the Caspian Sea, humid subtropical pockets along the Black Sea coast in the Krasnodar region, and high mountain ecosystems in the Caucasus, Altai, and Kamchatka. Calling the entire country a tundra ignores this enormous diversity.
Permafrost Is Not the Same as Tundra
This distinction matters and is routinely confused. Tundra is a biome, defined by its vegetation and surface conditions: treeless, low-growing plants, mosses, lichens, and grasses. Permafrost is a soil condition, defined as ground that stays at or below freezing for at least two consecutive years. The two overlap in the tundra zone, but permafrost extends far south of where tundra ends. Roughly two-thirds of Russia’s territory sits atop some form of permafrost, stretching deep into the taiga where dense forests of larch and spruce grow on top of frozen ground.
Research comparing carbon storage in Siberian tundra and taiga permafrost ecosystems illustrates this overlap. In both environments, the vast majority of ecosystem carbon, at least 86%, is stored in the soil rather than in living vegetation.4Journal of Geophysical Research: Biogeosciences. Comparing carbon storage of Siberian tundra and taiga permafrost ecosystems at very high spatial resolution The taiga’s permafrost soils lock away enormous amounts of organic carbon even though the landscape above looks like dense forest, not frozen wasteland. Meanwhile, soil studies in Yakutia, one of the coldest inhabited regions on Earth, show that cryosols in the tundra and those in the northern taiga share similar poorly differentiated profiles because the intense cold and freeze-thaw cycles churn the soil in comparable ways.5Eurasian Soil Science. Cryosols from Tundra and Taiga Zones of Yakutia: Properties, Clay Mineralogy, and Problems of Classification
Permafrost soils in the forest-tundra transition zone, where sparse trees begin to appear among tundra vegetation, hold particularly high concentrations of organic carbon. One study of the forest-tundra in northern Siberia found that soils with a shallow seasonal thaw layer, less than about 40 centimeters deep, accumulated substantially more carbon than nearby soils without permafrost in the upper meter.6Geoderma. Organic matter composition and potential trace gas production of permafrost soils in the forest tundra in northern Siberia Permafrost distribution, in other words, shapes carbon storage regardless of whether the surface is tundra, forest-tundra, or full taiga.
Life on the Russian Tundra
Despite looking sparse and inhospitable, Russian tundra supports a distinctive suite of plants and animals. Detailed vegetation studies on the Taymyr Peninsula in northern Siberia have documented at least five distinct plant community types across the tundra zone, ranging from well-drained plateau communities dominated by sedges and mosses to mire depressions and specialized snowbed communities that form under varying durations of snow cover.7Journal of Vegetation Science. Floristic classification and ecology of tundra vegetation of the Taymyr Peninsula, northern Siberia What looks like a flat expanse of emptiness actually consists of a patchwork of microhabitats driven by drainage, elevation differences of just a meter or two, and snow distribution.
Even disturbed sites can develop surprising biodiversity. Surveys of abandoned building-stone quarries near Vorkuta, in the southern dwarf-shrub tundra, identified 69 lichen taxa on the quarry substrates. The species richness at quarry sites, reaching 33 species per 100 square meters, actually exceeded the background tundra’s 26 species per 100 square meters, partly because the exposed mineral substrates attracted calcium-loving lichen species that do not thrive on the typical acidic tundra soils.8Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences. Lichens in quarries of the south tundra subzone of the European North-East of Russia
Animal diversity in the Arctic decreases as you move north from the treeline toward the polar deserts, but the species that do persist are highly adapted. Terrestrial Arctic animals cope with extreme temperature swings through a combination of winter dormancy, seasonal migration, thick insulation, and physiological flexibility. As species richness drops, a few super-dominant species expand across a wide range of habitats, filling ecological niches that would be occupied by specialists in warmer biomes. The biotic environment is simplified, with fewer predators, parasites, and competitors, but also fewer food resources.9BioOne Complete / AMBIO. Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change Reindeer, Arctic foxes, lemmings, and snowy owls are among the generalists that thrive across these landscapes.
The Tundra-Taiga Boundary Is Moving
One of the most visible signs of climate change in Russia is the northward creep of shrubs and trees into what was recently open tundra. This process, sometimes called “shrubification,” has been documented across multiple regions. In central Chukotka in northeastern Siberia, satellite analysis between 2000 and 2017 found that the area classified as shrub tundra expanded by about 20% in the tundra-taiga transition zone, while the northern taiga saw a 40% increase in shrub and tree cover.10Environmental Research Letters. Strong shrub expansion in tundra-taiga, tree infilling in taiga and stable tundra in central Chukotka (north-eastern Siberia) between 2000 and 2017
Further west, climate analysis has found that current temperatures at several meteorological stations in the European Russia and Western Siberia tundra now match conditions that historically characterized the forest-tundra zone. In some areas that used to fall within the forest-tundra climate, conditions now resemble northern taiga.11Polar Science. How climate change is affecting the transitional natural zones of the Northern and Arctic regions of Russia The biome boundaries drawn on maps a generation ago are already outdated in parts of Russia. Vegetation has not caught up everywhere, since trees take decades to colonize new ground, but shrubs, especially willows, are fast responders.
Willow shrubs in the Russian Arctic have been growing faster and taller. Tree-ring analysis of shrub willows, combined with satellite measurements of photosynthetic activity from 1981 to 2005, shows a clear greening trend that tracks rising temperatures. Nomadic Nenets reindeer herders have independently confirmed the pattern, reporting visible increases in willow size in their grazing areas.12Global Change Biology. Russian Arctic warming and ‘greening’ are closely tracked by tundra shrub willows Satellite data from 1982 to 2010 over northeastern Siberia confirms that summer vegetation greenness increased significantly across about 20% of one large watershed, particularly in cold, shrub-dominated areas.13PubMed. Plant response to climate change along the forest-tundra ecotone in northeastern Siberia
The greening trend is real but uneven. Core tundra areas far from the treeline are changing more slowly. In some places, warming has actually reduced vegetation productivity by drying out soils or triggering thermokarst collapse, where melting permafrost destabilizes the ground surface.
Thermokarst and the Unraveling Landscape
When ice-rich permafrost thaws, the ground above it slumps, creating thermokarst features: collapsed terrain, expanding lakes, and eroded shorelines. This process is accelerating in many parts of the Russian tundra and forest-tundra. Sediment analysis in a tundra lake in northeastern Siberia documented repeated episodes of retrogressive thaw slumping, in which the permafrost along a lake’s shoreline retreats in stages. The slumps followed the geometry of underground ice-wedge networks, with each collapse sending pulses of fine sand into the lake.14Permafrost and Periglacial Processes. Thermokarst Processes and Depositional Events in a Tundra Lake, Northeastern Siberia These are not just curiosities for geologists. Thermokarst reshapes drainage patterns, alters ecosystems, and destroys infrastructure.
Across the Russian Arctic, permafrost degradation poses a direct threat to buildings and industrial facilities. Modern forecasts project that continued warming will cause massive deformation and destruction of fixed assets in permafrost regions by the second half of this century.15Polar Science. Estimation of the value of buildings and structures in the context of permafrost degradation: The case of the Russian Arctic Cities like Norilsk, Yakutsk, and Vorkuta were built on permafrost using foundations designed to keep the ground frozen. As that ground warms, buildings tilt, pipelines buckle, and roads develop sinkholes. Norilsk, one of the largest cities above the Arctic Circle, has already seen structural damage to thousands of buildings. The economic and logistical challenge of maintaining or relocating infrastructure across this vast territory is staggering.
Reindeer Herders and the Frozen Ground
For the indigenous peoples of Russia’s tundra and forest-tundra, permafrost is not an abstract geological feature. It is a daily presence that shapes where they camp, how they move, and how their herds behave. Ethnographic research with Komi and Nenets reindeer-herding nomads in northeastern Europe and western Siberia documents the many ways permafrost dynamics influence herding life. Herders must account for the risk of thermokarst when choosing campsites, and permafrost’s influence on landscape and vegetation directly affects reindeer movement and grazing patterns. As permafrost degrades more rapidly, researchers project a range of negative consequences for reindeer herding, from less predictable terrain to altered vegetation and changes in river and lake systems that herders rely on for seasonal crossings.16Polar Science. Permafrost and indigenous land use in the northern Urals: Komi and Nenets reindeer husbandry
These herding groups have occupied the tundra for centuries, developing detailed knowledge of local terrain, ice conditions, and seasonal vegetation patterns. Their observations of increasing willow growth and shifting snow conditions align with satellite-based findings and provide ground-truth data that remote sensing alone cannot capture. The convergence of indigenous knowledge and scientific measurement on Arctic greening is one of the more compelling lines of evidence for how rapidly the Russian tundra is changing.
How Permafrost Got on the Map
The scientific understanding of permafrost itself has a distinctly Russian origin. In the 1930s, a scientist named Mikhail Sumgin developed the term, definition, and geographic framework for permafrost that became standardized first in the Soviet Union and later worldwide.17Environmental History. Mapping Permafrost Country: Creating an Environmental Object in the Soviet Union, 1920s–1940s Before Sumgin’s work, frozen ground was understood regionally and anecdotally. Miners and builders in Siberia knew the ground stayed frozen at depth, but there was no unified concept tying these observations together or mapping their extent. Soviet scientists transformed permafrost from a local nuisance into a recognized environmental object that could be studied, mapped, and engineered around.
This history matters because it explains why Russian permafrost science remains among the most advanced in the world. Decades of Soviet-era investment in understanding frozen ground, driven largely by the practical demands of building cities, railways, and pipelines across Siberia, produced datasets and monitoring networks that continue to underpin global permafrost research. Many of the longest continuous permafrost temperature records come from Russian monitoring stations, some dating back to the mid-twentieth century.
Alpine Tundra in Russia’s Mountains
Tundra in Russia is not limited to the Arctic lowlands. Alpine tundra exists above the treeline in mountain ranges throughout the country, including the Urals, the Altai, the Sayan, and the mountains of Kamchatka and the Russian Far East. These high-elevation tundra zones share many characteristics with Arctic tundra: low-growing vegetation, harsh winds, a short growing season, and permafrost in some cases. But they differ in important ways. Alpine tundra receives more solar radiation, experiences more extreme daily temperature swings, and often has better-drained soils than its Arctic counterpart. The plant communities differ too, with alpine-adapted species replacing some of the Arctic specialists.
Russia’s mountain tundra is often overlooked in discussions about the country’s frozen landscapes because it is patchy and fragmented, scattered across peaks and plateaus rather than forming a continuous band. But in aggregate, it represents a meaningful addition to the country’s total tundra area and hosts distinct ecosystems worth their own attention.
What Happens to Tundra Carbon When Permafrost Thaws
The carbon locked in Russia’s permafrost soils is one of the most consequential unknowns in climate science. As permafrost thaws, microbes begin decomposing organic matter that has been frozen for thousands of years, releasing carbon dioxide and methane. The forest-tundra transition zone is a critical area for this process because soils there accumulate some of the highest concentrations of organic carbon. In northern Siberia’s forest-tundra, soils with intact shallow permafrost stored roughly three times more carbon in their upper layers than nearby soils without permafrost.6Geoderma. Organic matter composition and potential trace gas production of permafrost soils in the forest tundra in northern Siberia Permafrost distribution may considerably affect future greenhouse gas fluxes from these regions.
Whether this carbon release creates a significant positive feedback loop, where warming causes thaw, which releases carbon, which causes more warming, depends on the speed and extent of thaw and on whether the released carbon comes out as carbon dioxide or methane. Methane is a far more potent greenhouse gas in the short term. Waterlogged soils in thermokarst depressions tend to produce more methane, while better-drained thawing soils produce more carbon dioxide. Russia’s tundra and forest-tundra hold an outsized share of global permafrost carbon, so what happens in Siberia over the coming decades will not stay in Siberia. The climate implications extend everywhere.