Search results
Results from the WOW.Com Content Network
The Rocky Mountains subalpine zone is the biotic zone immediately below tree line in the Rocky Mountains of North America. In northern New Mexico , the subalpine zone occupies elevations approximately from 9,000 to 12,000 feet (2,700 to 3,700 m); [ 1 ] while in northern Alberta , the subalpine zone extends from 1,350 to 2,300 metres (4,400 to ...
The biotemperature of the subalpine zone is between 3 and 6 °C (37 and 43 °F). [5] Above the tree line the ecosystem is called the alpine zone or alpine tundra, dominated by grasses and low-growing shrubs. The biotemperature of the alpine zone is between 1.5 and 3 °C (34.7 and 37.4 °F).
The Sierra Nevada subalpine zone refers to a biotic zone below treeline in the Sierra Nevada mountain range of California, United States. This subalpine zone is positioned between the upper montane zone (such as red fir forest) at its lower limit, and tree line at its upper limit.
Tree line and Krummholz zone or ecotone (stunted subalpine bushes), Sub-alpine meadow and Alpine climate. Alpine zone, 2,000 - 3,000 m (Eastern Alps), Montane grasslands and shrublands. Mountain Pine or Mugo Pine (Pinus mugo) limit. Alpine meadows just used in the warm season.
Mount Elbert rises through multiple biotic zones, with alpine tundra at its peak.. The Rocky Mountains range in latitude between the Liard River in British Columbia (at 59° N) and the Rio Grande in New Mexico (at 35° N), and in height up to the highest peak, Mount Elbert at 14,440 feet (4,400 m), taking in great valleys such as the Rocky Mountain Trench and San Luis Valley.
The marginal conditions make the Sierra Nevada subalpine zone sensitive to environmental changes, such as climate change and pollution. [ 12 ] South of Bridgeport , the subalpine forest ranges from 9,000 to 11,000 feet (2,700 to 3,400 m) of elevation and contains foxtail pines , while to the north, the subalpine forest ranges from 8,000 to ...
The Cascades Subalpine/Alpine ecoregion is an area of high, glaciated, volcanic peaks rising above subalpine meadows, with cascading streams, glacial cirques, and tarns. Pleistocene glaciation reshaped the mountains above 6,500 feet (2,000 m), leaving moraines , glacial lakes, and U-shaped glacial canyons .
The subalpine fir forests in the North Cascades include Douglas fir, Engelmann spruce, subalpine larch, and whitebark pine. [8] The Engelmann spruce and the subalpine fir are commonly found together. In the higher boundaries of this ecoregion the subalpine fir takes on the krummholz form. The Subalpine Fir Ecoregion is characterized by its ...