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Tundra - Wikipedia
网页In physical geography, tundra (/ ˈtʌndrə, ˈtʊn -/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: Arctic tundra, [2] alpine tundra, [2] and Antarctic tundra. [3]
Tundras Explained - National Geographic Society
网页2023年10月19日 · Tundras—like Little Diomede Island, Alaska, United States—are places of scarcity with little rain and vegetation. These cold, windy environments, however, are threatened by global warming. Photograph by Ira Block
Tundra Biome - National Geographic Society
网页2024年8月29日 · animal that is hunted and eaten by other animals. tundra. noun. cold, treeless region in Arctic and Antarctic climates. tundra climate. noun. region that experiences short summers and long winters. Tundras are cold, harsh environments with distinctive biodiversity adapted to these conditions.
Tundra | Definition, Climate, Animals, & Facts | Britannica
网页Tundra, a cold region of treeless level or rolling ground found mostly north of the Arctic Circle or above the timberline on mountains. Tundra is known for large stretches of bare ground and rock and for patchy mantles of low vegetation such as mosses, lichens, herbs, and small shrubs.
Tundra facts and information - National Geographic
网页2019年2月12日 · Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy, and rainfall is scant. Tundra lands are covered with snow for...
What Are Tundras? | National Geographic - YouTube
网页Derived from the Finnish word tunturia, meaning treeless or barren land, tundra is the coldest and driest of all biomes.
What Is The Tundra? - WorldAtlas
网页2022年10月18日 · Tundra is a biome characterized by minimal precipitation, low temperatures, and treeless conditions. The term Tundra has been derived from a Russian word that means "treeless mountain tract."
Tundra Threats Explained - National Geographic Society
网页2023年10月19日 · Tundras are among the world's coldest, harshest biomes, with extreme temperatures and low rainfall. But these environments in the Arctic and on mountains are far from invulnerable, displaying sensitivity to human disruptions and climate change .
Tundra: Mission: Biomes - NASA Earth Observatory
网页Description. The tundra is the coldest of the biomes. It also receives low amounts of precipitation, making the tundra similar to a desert. Tundra is found in the regions just below the ice caps of the Arctic, extending across …
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