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Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate. As the latitude of a location approaches the poles, the threshold elevation for alpine tundra gets lower until it reaches sea level, and alpine tundra merges with polar tundra .
Alpine tundra is generally better drained than arctic soils. [7] Alpine tundra transitions to subalpine forests below the tree line; stunted forests occurring at the forest-tundra ecotone (the treeline) are known as Krummholz. Alpine tundra can be affected by woody plant encroachment. [27] Alpine tundra occurs in mountains worldwide.
Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands and shrublands or alpine tundra. Due to the unique ...
The Iceland boreal birch forests and alpine tundra ecoregion (WWF ID: PA0602) covers the island of Iceland in the North Atlantic.The island is volcanic in origin with basaltic soils, and the cold northerly climate prevents any significant crop agriculture.
Higher elevations are dominated by lodgepole pine, engelmann spruce, and alpine fir, though to a lesser extent in the west of the ecoregion. Vegetation in the alpine tundra includes discontinuous patches of low-growing heather , sedge , and mountain avens .
Alpine tundra occurs in mountains worldwide. It transitions to subalpine forests below the tree line; stunted forests occurring at the forest-tundra ecotone are known as Krummholz . With increasing elevation, it ends at the snow line where snow and ice persist through summer, also known as the Nival Zone.
The tundra region is found in high latitudes, primarily in Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia, as well as the Antarctic Islands. Consisting of the arctic, alpine, and Antarctic regions, and stemming from the Samer language, tundra literally means a "high and dry place".
The Coconino National Forest is a 1.856-million acre (751,000 ha) ... the alpine tundra mostly consists of boulder fields and loose gravel. The only trees that exist ...