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Within the tundra, some dominant plant species include lichen, cotton grass, and Arctic willow. Lichens. Lichens dominate the tundra as the region's major primary producer. A symbiotic combination of algae and fungi, a lichen is able to survive in the harsh conditions of the tundra (Biodiversity Institute of Ontario et al. 2010).
Arctic vegetation is largely controlled by the mean temperature in July, the warmest month. Arctic vegetation occurs in the tundra climate, where trees cannot grow.Tundra climate has two boundaries: the snow line, where permanent year-round snow and ice are on the ground, and the tree line, where the climate becomes warm enough for trees to grow. [7]
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 ...
The amount of vegetation in the tundra consists on how much sun, or snow cover is in the area. The vegetation in this area may grow as tall as 50 cm (20 in). In the southern part of the Arctic, there tend to be more shrubs whereas the northern parts there is less plant cover. In wet areas of the tundra, there is tussock grasses and cotton grasses.
An active layer of permafrost is the only layer of soil that can support plant life in the Arctic tundra, which lacks adequate soil layers like those seen in temperate grassland. The further north ...
Svalbard has permafrost and tundra, with both low, middle and high Arctic vegetation.There have been found 165 species of plants on the archipelago. [3] Only those areas which defrost in the summer have vegetations, which accounts for about 10% of the archipelago. [11]
Arctic ecology is the scientific study of the relationships between biotic and abiotic factors in the arctic, the region north of the Arctic Circle (66° 33’N). [1] This region is characterized by two biomes: taiga (or boreal forest) and tundra. [2]
The Arctic tundra has historically helped reduce global emissions. But rising temperatures and wildfires in the region are changing that, scientists say. Arctic tundra becoming a source of carbon ...
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