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The tundra is an extremely harsh, cold, windy, and unique ecosystem found on the extreme north and south latitudes of our Earth. The soil consists mostly of frozen permafrost, which makes it difficult for extended root systems to grow, and water to drain and support a wide variety of plant life.
In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) 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] Tundra vegetation is composed of dwarf shrubs, sedges, grasses ...
Major bodies of water include the Arctic Ocean, Hudson Bay, the Gulf of Alaska and North Atlantic Ocean. [2] The North American Arctic lies above the Arctic Circle. [3] It is part of the Arctic, which is the northernmost region on Earth. The western limit is the Seward Peninsula and the Bering Strait.
Alpine tundra occurs at high enough altitude at any latitude.Portions of montane grasslands and shrublands ecoregions worldwide include alpine tundra. Large regions of alpine tundra occur in the North American Cordillera and parts of the northern Appalachian Mountains in North America, the Alps and Pyrenees of Europe, the Himalaya and Karakoram of Asia, the Andes of South America, the Eastern ...
The Arctic coastal tundra is an ecoregion of the far north of North America, an important breeding ground for a great deal of wildlife. Setting
The United States Geological Survey estimates that 22 percent of the world's oil and natural gas could be located beneath the Arctic. [1]Russia's undiscovered petroleum is estimated between 67 billion tons of oil equivalent (BTOE) according to the United States Geological Survey and 142 BTOE according to the Russian Academy of Sciences (in 2011, the world consumed 13 BTOE of energy, 31% from ...
A tundra climate is characterized by having at least one month whose average temperature is above 0 °C (32 °F), while an ice cap climate has no months averaging above 0 °C (32 °F). [2] In a tundra climate, even coniferous trees cannot grow, but other specialized plants such as the arctic poppy can grow. In an ice cap climate, no plants can ...
The polar bear (Ursus maritimus) is the dominant carnivore in the tundra. The tundra is a sub-Arctic zone with long, cold winters and short, warm summers. [5] [29] Precipitation is low. Soil a meter below ground and deeper is permanently frozen , which does not allow water to drain easily through the soil, so it collects in shallow pools. Trees ...