Quick facts about tundra
Tundra
refers to area where specific climatic and geographic conditions hinder the
tree growth, resulting in specific vegetation that includes dwarf shrubs, sedges
and grasses, mosses, and lichens.
The world's
most famous tundra is Arctic tundra. At winter, the temperatures in Arctic
tundra go below -40°C with average temperature being −28 °C.
Arctic
tundra is also characterized by very strong and cold winds. The powerful winds in
Arctic tundra often blow 30–60 miles an hour.
In the last
few decades some shrubs in the Arctic tundra have turned into trees as a result
of the climate change and increased temperatures in Arctic.
Because of the increased temperatures Arctic tundra is shrinking, and in
process opening the door to rapid forestation. What this means is that many
trees can now survive in places that would have been too cold before
The
ever-growing climate change impact has already significantly increased
vegetation in Arctic tundra regions, and many scientists believe that this
increase in vegetation can lead to further global warming acceleration by
leading to a faster melting of the snow in spring.
Tundra is
usually characterized by low biodiversity due to harsh natural conditions. The
only real exception to this rule is the fact that millions of birds migrate in
tundra each year for the marshes.
It is
believed that Arctic tundra is rich with many important resources such as oil
and uranium.
The three
main types of tundra are Arctic tundra,
alpine tundra, and Antarctic tundra.
Unlike
Arctic tundra, Antarctic tundra is characterized by the lack of large mammal
fauna.
The main
difference between the Antarctic and alpine tundra is that alpine tundra
typically does not have permafrost. The dominant flora of alpine tundra is
dwarf shrubs.
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