Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturia, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation. Tundra is separated into two types: arctic tundra andalpine tundra.
http://www.ucmp.berkeley.edu/glossary/gloss5/biome/tundra.html
http://www.ucmp.berkeley.edu/glossary/gloss5/biome/tundra.html
FUN FACTS |
*The word tundra comes from the Finnish word tunturia which means treeless land.
*Because of the extreme temperatures, most organisms get their nutrients from the decaying of dead organic material. *The tundra biome is considered a carbon dioxide sink because it stores more carbon dioxide than it gives off. *The tundra biome has about 400 varieties of flowers but only 48 different animals. *The tundra biome covers about 20% of the Earth. http://www.softschools.com/facts/biomes/tundra_biome_facts/171/ |