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- 點止冰冰島@ 回來以後
- Flowers in Iceland
Plants of Iceland
Scandinavian (flora and fauna)
TOP 10 INTERESTING FACTS ABOUT THE TUNDRA
BIOME:
The Tundra Biome is the 2nd most deadliest
environment.
The Tundra Biome has only 6 weeks of
summer.
There is little to no precipitation.
The soil has very little nutrients for
plants.
It the least inhabited by humans biome.
The Tundra Biome is the biome most affected
by human pollution.
The sun is almost 24 hours up a summer day,
meaning that there are mostly no nights.
During the winter, this biome has few hours
of sunlight.
The Tundra Biome is covered permanently by
a frozen layer of soil.
The Tundra Biome is the most vital role in
keeping global temperature at a stable place.
http://1214.virtualclassroom.org/tundra_fact.html
Moss
Geum rivale, water avens
Alpine bartsia
common wintergreen
Halberd-leaved willow
mossy saxifrage
Daisy
Sea campion
Garden Angelica
Nootka Lupia
The Tundra
The tundra is cold year-round—it has short cool summers and long, severe winters. The tundra has a permanently frozen sublayer of soil called permafrost. Drainage is poor due to the permafrost and because of the cold, evaporation is slow. The tundra receives little precipitation, about 4 to 10 inches per year, and what it does receive is usually in the form of snow or ice. It has long days during the growing season, sometimes with 24 hours of daylight, and long nights during the winter. There is little diversity of species. Plant life is dominated by mosses, grasses, and sedges.
The tundra is cold year-round—it has short cool summers and long, severe winters. The tundra has a permanently frozen sublayer of soil called permafrost. Drainage is poor due to the permafrost and because of the cold, evaporation is slow. The tundra receives little precipitation, about 4 to 10 inches per year, and what it does receive is usually in the form of snow or ice. It has long days during the growing season, sometimes with 24 hours of daylight, and long nights during the winter. There is little diversity of species. Plant life is dominated by mosses, grasses, and sedges.
Tundra Plant Adaptations
- Tundra plants are small (usually less than 12 inches tall) and low-growing due to lack of nutrients, because being close to the ground helps keep the plants from freezing, and because the roots cannot penetrate the permafrost.
- Plants are dark in color—some are even red—this helps them absorb solar heat.
- Some plants are covered with hair which helps keep them warm.
- Some plants grow in clumps to protect one another from the wind and cold.
- Some plants have dish-like flowers that follow the sun, focusing more solar heat on the center of the flower, helping the plant stay warm.
http://www.mbgnet.net/bioplants/adapt.html
