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As of 2005, arctic vegetation covered approximately 5 × 10 ^ 6 km 2 (1.9 × 10 ^ 6 sq mi) of land. [2] The area of Arctic vegetation decreased by approximately 1.4 × 10 ^ 6 km 2 (0.54 × 10 ^ 6 sq mi) from 1980 to 2000, with a corresponding increase in the boreal forest (taiga). [3] This decrease is linked to the warming of the Arctic due to ...
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).
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 ...
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 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.
The Arctic report, for example, showed Alaskan permafrost temperatures in 2024 were the second-warmest ever recorded. That causes the soil to heat up and thaw, its carbon repositories decompose ...
The Arctic tundra, a critical “carbon sink” for thousands of years, is now releasing more of the greenhouse gas than it takes in, scientists have announced.. Carbon sinks like the Arctic play ...
The largest marine ecozone is the Arctic Archipelago (which covers about 15 percent of Canada, or 1.5 million km2), whereas the largest terrestrial ecozone is the Boreal Shield (covering 20 percent of Canada, or 1.9 million km 2). [15] Canada's major biomes are the tundra, boreal forest, grassland, and temperate deciduous forest. [16]
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