Tundra

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by Selenayoyoyo
Last updated 6 years ago

Discipline:
Science
Subject:
Ecosystems
Grade:
10

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Tundra

Polar BearCaribouArctic FoxArctic HareSnowy OwlMusk OxRock Ptarmigan

Welcome to the Tundra!

Tundra Biome

Temperatures during the arctic winter can dip to -60º F (-51º C)! Average temperature of the warmest month is between 50ºF (10ºC) and 32º F (0ºC). Sometimes as few as 55 days per year have a mean temperature higher than 32ºF (0ºC). The average annual temperature is only 10º to 20ºF (-12ºC to -6ºC). Obviously this significantly restricts plant growth and limits the diversiy of living creatures. All of the plants are adapted to sweeping winds and disturbances of the soil. Plants are short and group together to resist the cold temperature.

Tundra is found in the extreme North of Canada and Asia.What is Tundra?Arctic tundra is located in the northern hemisphere that encircles the north pole and extends to south of the coniferous forests of the taiga. The tundra covers about one fifth of the land surface found on Earth. Tundra is the coldest and driest of all the biomes. Tundra comes from the Finnish word tunturia, meaning treeless plain. The ground is subject to permafrost (land that is permanently frozen), but the surface layer melts in the summer. Soil conditions are poor, being marshy and waterlogged. Little plant life can survive. Only grasses, mosses, lichens and dwarf shrubs exist in this area.

Arctic plants have a very short growing season. However, in spite of the severe conditions and the short growing season, there are approximately 1,700 kinds of plants that live in the Arctic tundra. Some of the plants that live in the Arctic tundra include mosses, lichens, low-growing shrubs, and grasses--but no trees.


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