Tundra

noun (uncountable, also used attributively)
/ˈtʌndrə/
A treeless biome of the Arctic and subarctic zones — and at high altitudes (alpine tundra) — characterised by permafrost, a short growing season (6–10 weeks), low shrubs, sedges, mosses, and lichens, with mean annual temperatures below −5°C. Arctic tundra covers approximately 11 million km² and acts as a significant carbon sink when frozen but becomes a net carbon source as warming thaws permafrost. India's cold desert regions of Ladakh and Spiti Valley exhibit alpine tundra-like conditions, making tundra a standard UPSC Natural Vegetation and Biogeography topic.

✍️ Usage in a UPSC answer

Ladakh's high-altitude tundra-like plateaux, situated above 4,500 m, are experiencing measurable warming at twice the global average rate, threatening the traditional phu (pastoral summer grazing) practices of Changpa nomads who depend on the fragile pasture ecosystem.

Synonyms

arctic plaintundra biomecold desert (informal)permafrost zonebarrens

Antonyms

tropical rainforesttaigasavannatemperate grasslandMediterranean scrub

🌱 Word Family

tundra (noun), tundra soil (compound noun), alpine tundra (compound noun), tundra biome (compound noun)

🔡 Root

Russian тундра (tundra) from Kildin Sami tūndâr = upland, treeless plain; or from Finnish tunturi = treeless high ground

📜 Etymology

Borrowed from Russian tundra (тундра), which in turn was borrowed from a Saami (or possibly Nenets) word — likely Kildin Sami tūndâr or Finnish tunturi — meaning elevated, treeless, barren land. The word entered European geographical and scientific literature in the 17th–18th centuries through Russian exploration and cartography of Arctic Siberia. Its use in ecology and biogeography was standardised in the 19th–20th centuries.

🧠 Memory Hook

TUNDRA = the land that is UNDER-A permanent frost. Cold, flat, treeless — think of it as the 'under-world' of biomes: underground frozen, surface barely alive. The Russian explorers crossing Siberia called it tundra — the land too cold for trees.

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